AD7484BSTZ;EVAL-AD7484CBZ;中文规格书,Datasheet资料

RT8074®DS8074-08 November 20201©Copyright 2020 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Applications●LCD TVs and Monitors ●Notebook Computers●Distributed Power Systems ●IP Phones●Digital CamerasGeneral DescriptionThe RT8074 is a simple, easy-to-use current mode controlled 4A synchronous step-down DC-DC converter with an input supply voltage range from 2.7V to 5.5V.The device build-in an accurate 0.8V reference voltage and integrates low R DS(ON) power MOSFETs to achieve high efficiency in SOP-8 (Exposed Pad) package.The RT8074 operates in automatic PSM that maintains high efficiency during light load operation. The device features cycle-by-cycle current-limit protection to prevent the device from the catastrophic damage in output short circuit, over-current or inductor saturation. Built-in soft-start function prevents inrush current during start-up. The device also features input under-voltage lockout, output under-voltage protection, and over-temperature protection to provide safe and smooth operation in all operating conditions.Ordering Information4A, 2MHz, Synchronous Step-Down ConverterNote :Richtek products are :❝ RoHS compliant and compatible with the current require-ments of IPC/JEDEC J-STD-020.❝ Suitable for use in SnPb or Pb-free soldering processes.Features●Input Voltage Range from 2.7V to 5.5V ●Integrated 110m Ω and 70m Ω FETs●100% Duty Cycle for Lowest Dropout ●Power Saving Mode for Light Loads ●Adjustable Frequency : 200kHz to 2MHz ●0.8V Reference Allows Low Output Voltage ●Enable Function ●Internal Soft-Start●Input Under-Voltage Lockout Protection ●Output Under-Voltage Protection ●Over-Temperature Protection●RoHS Compliant and Halogen FreePin Configurations(TOP VIEW)SOP-8 (Exposed Pad)COMP GND EN VINFB RT LXLXRT8074G : Green (Halogen Free and Pb Free)RT8074GSP : Product NumberYMDNN : Date CodeRT80742DS8074-08 November 2020 ©Copyright 2020 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Functional Pin DescriptionTypical Application CircuitTable 1. Recommended Components Selection for f SW = 1MHzNote:Considering the effective capacitance de-rated with biased voltage level and size, the C OUT component needs satisfy theeffective capacitance at least 15μF or above at targeted output level for stable and normal operation.V OUTRT80743DS8074-08 November 2020©Copyright 2020 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Function Block DiagramRT80744DS8074-08 November 2020©Copyright 2020 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Absolute Maximum Ratings (Note 1)●Supply Input Voltage, VIN ---------------------------------------------------------------------------------------------- −0.3V to 6.5V ●LX Pin Switch Voltage --------------------------------------------------------------------------------------------------- −0.3V to 6.5V <10ns ----------------------------------------------------------------------------------------------------------------------- −2.5V to 8.5V ●Other I/O Pin Voltages -------------------------------------------------------------------------------------------------- −0.3V to 6.5V ●Power Dissipation, P D @ T A = 25°CSOP-8 (Exposed Pad)--------------------------------------------------------------------------------------------------1.33W●Package Thermal Resistance (Note 2)SOP-8 (Exposed Pad), θJA ---------------------------------------------------------------------------------------------75°C/W SOP-8 (Exposed Pad), θJC --------------------------------------------------------------------------------------------15°C/W ●Junction T emperature ----------------------------------------------------------------------------------------------------150°C ●Lead Temperature (Soldering, 10 sec.)------------------------------------------------------------------------------260°C●Storage T emperature Range ------------------------------------------------------------------------------------------- −65°C to 150°C ●ESD Susceptibility (Note 3)HBM (Human Body Model)---------------------------------------------------------------------------------------------2kVElectrical CharacteristicsRecommended Operating Conditions (Note 4)●Supply Input Voltage, VIN ----------------------------------------------------------------------------------------------2.7V to 5.5V ●Junction T emperature Range ------------------------------------------------------------------------------------------- −40°C to 125°C ●Ambient T emperature Range ------------------------------------------------------------------------------------------- −40°C to 85°CRT80745DS8074-08 November 2020©Copyright 2020 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Note 1. Stresses beyond those listed “Absolute Maximum Ratings ” may cause permanent damage to the device. These arestress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect device reliability.Note 2. θJA is measured at T A = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θJC ismeasured at the exposed pad of the package.Note 3. Devices are ESD sensitive. Handling precaution is recommended.Note 4. The device is not guaranteed to function outside its operating conditions.RT80746DS8074-08 November 2020 ©Copyright 2020 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Typical Operating CharacteristicsReference Voltage vs. Temperature0.760.770.780.790.800.810.820.830.84-50-25255075100125Temperature (°C)R e f e r e n c e V o l t a g e (V)Switching Frequency vs. Temperature1.001.011.021.031.041.051.061.071.081.091.10-50-25255075100125Temperature (°C)S w i t c h i n g F r e q u e n c y (M H z )Output Voltage vs. Output Current1.0941.0961.0981.1001.1021.1041.1061.1081.1101.11200.511.522.533.54Output Current (A)O u t p u t V o l t a g e (V)V IN UVLO vs. Temperature2.102.152.202.252.302.352.402.452.50-50-25255075100125Temperature (°C)V I N U V L O (V )Enable Voltage vs. Temperature0.60.70.80.91.01.11.21.31.4-50-25255075100125Temperature (°C)E n a b l e V o l t a g e (V)Efficiency vs. Output Current1020304050607080901000.0010.010.1110Output Current (A)E f f i c i en c y (%)RT80747DS8074-08 November 2020©Copyright 2020 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Output RippleTime (500ns/Div)V OUT (20mV/Div)V LX (2V/Div)V IN = 5V, I OUT = 4APower Off from ENTime (100μs/Div)V IN = 5V, V OUT = 1.1V, I OUT = 4AI OUT (5A/Div)V LX (5V/Div)V EN (5V/Div)V OUT (1V/Div)Time (500μs/Div)Power On from ENI OUT (5A/Div)V LX (5V/Div)V IN = 5V, V OUT = 1.1V, I OUT = 4A V EN (5V/Div)V OUT (1V/Div)Load Transient ResponseTime (100μs/Div)I OUT (2A/Div)V OUT(200mV/Div)V IN = 5V, V OUT = 1.1V, I OUT = 1 to 4A,R COMP = 10k Ω, C COMP = 560pFRT80748DS8074-08 November 2020 ©Copyright 2020 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.0.00.20.40.60.81.01.21.41.61.82.025050075010001250150017502000R RT (k Ω)S w i t c h i n g F r e q u e n c y (M H z )Application InformationThe basic IC application circuit is shown in Typical Application Circuit. External component selection is determined by the maximum load current and begins with the selection of the inductor value and operating frequency followed by C IN and C OUT .Main Control LoopDuring normal operation, the internal high side power switch (P-MOSFET) is turned on at the beginning of each clock cycle. The inductor current increases until it reaches the value defined by the output voltage (V COMP ) of the error amplifier. The error amplifier adjusts its output voltage by comparing the feedback signal from a resistive voltage divider on the FB pin with an internal 0.8V reference. When the load current increases, it causes a reduction in the feedback voltage relative to the reference. The error amplifier increases its output voltage until the average inductor current matches the new load current. When the high side power MOSFET shuts off, the synchronous power switch (N-MOSFET) turns on until the beginning of the next clock cycle.Output Voltage SettingThe output voltage is set by an external resistive voltage divider according to the following equation :OUT REF R1V = V x (1)R2where V REF is 0.8V typical. The resistive voltage divider allows the FB pin to sense a fraction of the output voltage as shown in Figure 1.V OUTFigure 1. Setting the Output VoltageSoft-StartThe RT8074 includes an internal soft-start function thatgradually raises the clamp on the COMP pin.Switching Frequency SettingThe RT8074 offers adjustable switching frequency setting and the switching frequency can be set by using external resistor RT . Switching frequency range is from 200kHz to 2MHz. Selection of the operating frequency is a tradeoff between efficiency and component size. High frequency operation allows the use of smaller inductor and capacitor values. Operation at lower frequencies improves efficiency by reducing internal gate charge and transition losses,but requires larger inductance values and capacitance to maintain low output ripple voltage. An additional constraint on operating frequency are the minimum on-time and minimum off-time. The minimum on-time, t ON_MIN , is the smallest duration of time in which the high-side switch can be in its “on ” state. This time is 90ns (typically). In continuous mode operation, the minimum on-time limit imposes a maximum operating frequency, f SW_MAX , of :f SW_MAX = V OUT / (t ON_MIN x V IN_MAX )where V IN_MAX is the maximum operating input voltage.Through external resistor RT connect between RT pin and ground to set the switching frequency f SW . The equation below shows the relation between setting frequency and RT value.The switching frequency vs R RT value can be short with the formula below : f SW (MHz) = K x 0.9 / R RT (k Ω),where K = 3.67 x 105Note that the variation of f SW is ±15%.Figure 2. Switching Frequency vs. R RT ResistorRT80749DS8074-08 November 2020©Copyright 2020 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Having a lower ripple current reduces not only the ESRlosses in the output capacitors but also the output voltage ripple. Highest efficiency operation is achieved by reducing ripple current at low frequency, but it requires a large inductor to attain this goal.For the ripple current selection, the value of ΔI L = 0.4 (I MAX )will be a reasonable starting point. The largest ripple current occurs at the highest V IN . To guarantee that the ripple current stays below a specified maximum, the inductor value should be chosen according to the following equation :OUT OUT L(MAX)IN(MAX)V V L 1f x I V ⎡⎤⎡⎤=-⎢⎥⎢⎥∆⎢⎥⎢⎥⎣⎦⎣⎦Using Ceramic Input and Output CapacitorsHigher value, lower cost ceramic capacitors are now becoming available in smaller case sizes. Their high ripple current, high voltage rating and low ESR make them ideal for switching regulator applications. However, care must be taken when these capacitors are used at the input and output. When a ceramic capacitor is used at the input and the power is supplied by a wall adapter through long wires, a load step at the output can induce ringing at the input V IN . At best, this ringing can couple to the output and be mistaken as loop instability. At worst, a sudden inrush of current through the long wires can potentially cause a voltage spike at V IN large enough to damage the part.Slope Compensation and Inductor Peak Current Slope compensation provides stability in constant frequency architectures by preventing sub harmonic oscillations at duty cycles greater than 50%. It is accomplished internally by adding a compensating ramp to the inductor current signal. Normally, the maximum inductor peak current is reduced when slope compensationInductor SelectionFor a given input and output voltage, the inductor value and operating frequency determine the ripple current. The ripple current, ΔI L , increases with higher V IN and decreases with higher inductance :OUT OUT L IN V VI 1f x L V ⎡⎤⎡⎤∆=-⎢⎥⎢⎥⎣⎦⎣⎦is added. For the RT8074, however, a separate inductor current signal is used to monitor over current condition,so this keeps the maximum output current relatively constant regardless of duty cycle.Hiccup Mode Under-Voltage ProtectionA Hiccup Mode under-voltage protection (UVP) function is provided for the IC. When the FB voltage drops below half of the feedback reference voltage, V REF , the UVP function will be triggered to auto re-soft-start the power stage continuously until this event is cleared. The Hiccup Mode UVP reduces input current in short circuit conditions and prevents false triggering during soft-start process.Under-Voltage Lockout ThresholdThe IC features input under-voltage lockout protection (UVLO). If the input voltage exceeds the UVLO rising threshold voltage, the converter will reset and prepare the PWM for operation. If the input voltage falls below the UVLO falling threshold voltage during normal operation,the device will stop switching. The UVLO rising and falling threshold voltage has a hysteresis to prevent noise-caused reset.Over-Temperature ProtectionThe RT8074 includes an over-temperature protection (OTP)circuitry to prevent overheating due to excessive power dissipation. The OTP will shut down switching operation when junction temperature exceeds a thermal shutdown threshold T SD (150°C). Once the junction temperature cools down by a thermal shutdown hysteresis (ΔT SD = 20°C),the IC will resume normal operation with a complete soft-start.Thermal ConsiderationsFor continuous operation, do not exceed absolute maximum junction temperature. The maximum power dissipation depends on the thermal resistance of the IC package, PCB layout, rate of surrounding airflow, and difference between junction and ambient temperature. The maximum power dissipation can be calculated by the following formula :P D(MAX) = (T J(MAX) − T A ) / θJAwhere T J(MAX) is the maximum junction temperature, T A isRT807410DS8074-08 November 2020 ©Copyright 2020 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.the ambient temperature, and θJA is the junction to ambient thermal resistance.For recommended operating condition specifications, the maximum junction temperature is 125°C. The junction to ambient thermal resistance, θJA , is layout dependent. For SOP-8 (Exposed Pad) packages, the thermal resistance,θJA , is 75°C/W on a standard JEDEC 51-7 four-layer thermal test board. The maximum power dissipation at T A = 25°C can be calculated by the following formula :P D(MAX) = (125°C − 25°C) / (75°C/W) = 1.333W for SOP-8 (Exposed Pad) package.The maximum power dissipation depends on the operating ambient temperature for fixed T J(MAX) and thermal resistance, θJA . The derating curve in Figure 3 allows the designer to see the effect of rising ambient temperature on the maximum power dissipation.Figure 3. Derating Curve of Maximum Power Dissipation0.00.20.40.60.81.01.21.4255075100125Ambient Temperature (°C)M a x i m u m P o w e r D i s s i p a t i o n (W )Layout ConsiderationsFollow the PCB layout guidelines for optimal performance of the IC.❝ Connect the terminal of the input capacitor(s), C IN , asclose as possible to the VIN pin. This capacitor provides the AC current into the internal power MOSFETs.❝ LX node experiences high frequency voltage swing andshould be kept within a small area.❝ Keep all sensitive small signal nodes away from the LXnode to prevent stray capacitive noise pick up.❝ Connect the FB pin directly to the feedback resistors.The resistive voltage divider must be connected between V OUT and GND.RT807411DS8074-08 November 2020©Copyright 2020 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Figure 4. PCB Layout GuidePlace the compensation as close to the IC as possible.RT807412DS8074-08 November 2020 Richtek Technology Corporation14F, No. 8, Tai Yuen 1st Street, Chupei City Hsinchu, Taiwan, R.O.C.Tel: (8863)5526789Richtek products are sold by description only. Richtek reserves the right to change the circuitry and/or specifications without notice at any time. Customers shouldobtain the latest relevant information and data sheets before placing orders and should verify that such information is current and complete. Richtek cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Richtek product. Information furnished by Richtek is believed to be accurate and reliable. However, no responsibility is assumed by Richtek or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Richtek or its subsidiaries.Outline DimensionBFHMI(Bottom of Package)8-Lead SOP (Exposed Pad) Plastic Package。

全数字化逆变式直流手工电弧焊机软件用户说明书华意隆电气股份有限公司研发中心研制的全数字化逆变式直流手工电弧焊机控制软件是基于美国意法半导体（ST公司）的高性能ARM Cortex-M3系列中的STM32F103RC处理器而开发的全数字IGBT逆变式手工电弧焊机的控制软件，实现了直流手工电弧焊机包括PWM在内的全数字化控制。

显示界面采用LCD图形点阵128X64液晶显示模块，界面清晰直观。

内置专家参数库及一元化控制模式；焊接参数也可作精确设定，满足高品质焊接需求。

具有手工电弧焊焊接电流参数存储功能，使用简单方便，保证最佳工艺参数的控制。

参数设置采用编码器及轻触开关，调整快捷准确，手感好。

软件的主要功能以及使用说明：一、该控制软件焊接方式为直流手工电弧焊直流手工电弧焊集成了常规手工电弧焊接的一般功能，如防起弧粘条、VRD、推力电流、过压、欠压及过流保护等功能，焊机输出静特性采用恒流加外拖特性。

VRD功能开启时：空载输出的电压自动切换到12伏特左右，防止意外触电事件的发生；防粘条功能开启时：发生短路时焊接电流降至5安培；加推力开启时：当弧压小于15伏特以下时，焊接电流自动缓缓上升，直到弧压超过15伏特。

本软件是一套方便实用的专用控制软件，在国内和国际同行业都具有领先的设计思想。

具有多个可调节的参数，用户既可以采用系统默认的参数简单方便地设置焊机的焊接参数值，同样可以根据不同的焊接要求自主的精细地调整焊机的焊接参数值，以满足不同用户的具体使用习惯和偏好，使焊机发挥出最佳的焊接效果。

二、用户操作界面该软件具有非常友好的用户操作界面，用户可以很直观的了解操作界面，方便地使用焊机的各项功能学会设定实时调节焊接参数值，存储和调用焊机的工艺参数。

该控制软件使用LCD图形点阵128X64液晶显示模块作为用户界面，可显示焊机的工作电流及其他各项可调电弧参数值。

面板布局如图1所示。

图1.全数字化逆变式直流手工电弧焊机面板布局图控制面板及按键功能的定义表：（1）Mode键：焊接模式选择键（2）Setup键：焊接参数设置键（3）左移键：左移功能键（4）右移键：右移功能键（5）Esc键：放弃功能键（6）Enter键：确认功能键（7）编码器带轻触开关：参数调整选择（8）LCD图形点阵128X64液晶显示模块：显示界面三、LCD显示说明表：LCD液晶显示器分成上下两个部分，分别为焊接模式显示及参数设置栏。

74LVC245A; 74LVCH245AOctal bus transceiver; 3-stateRev. 9 — 11 September 2018Product data sheet1. General descriptionThe 74LVC245A; 74LVCH245A are 8-bit transceivers featuring non-inverting 3-state buscompatible outputs in both send and receive directions. The device features an output enable(OE) input for easy cascading and a send/receive (DIR) input for direction control. OE controls theoutputs so that the buses are effectively isolated.Inputs can be driven from either 3.3 V or 5 V devices. When disabled, up to 5.5 V can be applied tothe outputs. These features allow the use of these devices in mixed 3.3 V and 5 V applications.The 74LVCH245A bus hold on data inputs eliminates the need for external pull-up resistors to holdunused inputs.2. Features and benefits• 5 V tolerant inputs/outputs for interfacing with 5 V logic•Wide supply voltage range from 1.2 V to 3.6 V•CMOS low-power consumption•Direct interface with TTL levels•Inputs accept voltages up to 5.5 V•High-impedance when V CC = 0 V•Bus hold on all data inputs (74LVCH245A only)•Complies with JEDEC standard:•JESD8-7A (1.65 V to 1.95 V)•JESD8-5A (2.3 V to 2.7 V)•JESD8-C/JESD36 (2.7 V to 3.6 V)•ESD protection:•HBM JESD22-A114F exceeds 2000 V•MM JESD22-A115B exceeds 200 V•CDM JESD22-C101E exceeds 1000 V•Specified from -40 °C to +85 °C and -40 °C to +125 °C3. Ordering information4. Functional diagram5. Pinning information5.1. Pinning74LVC245A 74LVCH245ADIR V CC A0OE A1B0A2B1A3B2A4B3A5B4A6B5A7B6GND B7001aak2921234567891012111413161518172019Fig. 3.Pin configuration SOT163-1 (SO20),SOT339-1 (SSOP20) and SOT360-1 (TSSOP20)001aak29374LVC245A 74LVCH245AT ransparent top viewB6A6A7B5A5B4A4B3A3B2A2B1A1B0A0OE G N D B 7D I R V C C9128137146155164173182191011120terminal 1 index areaGND (1)(1) This is not a supply pin. The substrate is attached to this pad using conductive die attach material. There is no electrical or mechanical requirement to solder this pad. However, if it is soldered, the solder land should remain floating or be connected to GND.Fig. 4.Pin configuration SOT764-1 (DHVQFN20)5.2. Pin description6. Functional descriptionTable 3. Function selectionH = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high impedance OFF-state.7. Limiting valuesTable 4. Limiting valuesIn accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).[1]The minimum input voltage ratings may be exceeded if the input current ratings are observed.[2]The output voltage ratings may be exceeded if the output current ratings are observed.[3]For SO20 packages: above 70 °C derate linearly with 8 mW/K.For (T)SSOP20 packages: above 60 °C derate linearly with 5.5 mW/K.For DHVQFN20 packages: above 60 °C derate linearly with 4.5 mW/K.8. Recommended operating conditions9. Static characteristicsTable 6. Static characteristicsAt recommended operating conditions. Voltages are referenced to GND (ground = 0 V).[1]All typical values are measured at V CC = 3.3 V (unless stated otherwise) and T amb = 25 °C.[2]The bus hold circuit is switched off when V I ˃ V CC allowing 5.5 V on the input terminal.[3]For I/O ports the parameter I OZ includes the input leakage current.[4]Valid for data inputs of bus hold parts only (74LVCH245A). Note that control inputs do not have a bus hold circuit.[5]The specified sustaining current at the data input holds the input below the specified V I level.[6]The specified overdrive current at the data input forces the data input to the opposite input state.10. Dynamic characteristicsTable 7. Dynamic characteristicsVoltages are referenced to GND (ground = 0 V). For test circuit see Fig. 7.[1]Typical values are measured at T amb = 25 °C and V CC = 1.2 V, 1.8 V, 2.5 V, 2.7 V and 3.3 V respectively.[2]t pd is the same as t PLH and t PHL.t en is the same as t PZL and t PZH.t dis is the same as t PLZ and t PHZ.[3]Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.[4]C PD is used to determine the dynamic power dissipation (P D in μW).P D = C PD × V CC2 × f i × N + Σ(C L × V CC2 × f o) where:f i = input frequency in MHz; f o = output frequency in MHzC L = output load capacitance in pFV CC = supply voltage in VoltsN = number of inputs switchingΣ(C L × V CC2 × f o) = sum of the outputs.10.1. Waveforms and test circuit11. Package outlineSO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1Fig. 8.Package outline SOT163-1 (SO20)SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm SOT339-1Fig. 9.Package outline SOT339-1 (SSOP20)TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm SOT360-1Fig. 10.Package outline SOT360-1 (TSSOP20)DHVQFN20: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads;Fig. 11.Package outline SOT764-1 (DHVQFN20)12. Abbreviations13. Revision history14. Legal informationData sheet status[1]Please consult the most recently issued document before initiating orcompleting a design.[2]The term 'short data sheet' is explained in section "Definitions".[3]The product status of device(s) described in this document may havechanged since this document was published and may differ in case ofmultiple devices. The latest product status information is available onthe internet at https://.DefinitionsDraft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. Nexperia does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet — A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local Nexperia sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail.Product specification — The information and data provided in a Product data sheet shall define the specification of the product as agreed between Nexperia and its customer, unless Nexperia and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the Nexperia product is deemed to offer functions and qualities beyond those described in the Product data sheet.DisclaimersLimited warranty and liability — Information in this document is believedto be accurate and reliable. However, Nexperia does not give any representations or warranties, expressed or implied, as to the accuracyor completeness of such information and shall have no liability for the consequences of use of such information. Nexperia takes no responsibility for the content in this document if provided by an information source outside of Nexperia.In no event shall Nexperia be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removalor replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory.Notwithstanding any damages that customer might incur for any reason whatsoever, Nexperia’s aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of Nexperia.Right to make changes — Nexperia reserves the right to make changesto information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof.Suitability for use — Nexperia products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunctionof an Nexperia product can reasonably be expected to result in personal injury, death or severe property or environmental damage. Nexperia and its suppliers accept no liability for inclusion and/or use of Nexperia products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk.Quick reference data — The Quick reference data is an extract of the product data given in the Limiting values and Characteristics sections of this document, and as such is not complete, exhaustive or legally binding. Applications — Applications that are described herein for any of these products are for illustrative purposes only. Nexperia makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification.Customers are responsible for the design and operation of their applications and products using Nexperia products, and Nexperia accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the Nexperia product is suitableand fit for the customer’s applications and products planned, as well asfor the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. Nexperia does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using Nexperia products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). Nexperia does not accept any liability in this respect.Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above thosegiven in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device.Terms and conditions of commercial sale — Nexperia products aresold subject to the general terms and conditions of commercial sale, as published at /profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. Nexperia hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of Nexperia products by customer.No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights.Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities.Non-automotive qualified products — Unless this data sheet expressly states that this specific Nexperia product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements. Nexperia accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications.In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without Nexperia’s warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond Nexperia’s specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies Nexperia for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond Nexperia’s standard warranty and Nexperia’s product specifications.Translations — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions.TrademarksNotice: All referenced brands, product names, service names and trademarks are the property of their respective owners.Contents1. General description (1)2. Features and benefits (1)3. Ordering information (2)4. Functional diagram (2)5. Pinning information (3)5.1. Pinning (3)5.2. Pin description (3)6. Functional description (3)7. Limiting values (4)8. Recommended operating conditions (4)9. Static characteristics (5)10. Dynamic characteristics (7)10.1. Waveforms and test circuit (8)11. Package outline (10)12. Abbreviations (14)13. Revision history (14)14. Legal information (15)© Nexperia B.V. 2018. All rights reservedFor more information, please visit: Forsalesofficeaddresses,pleasesendanemailto:*************************** Date of release: 11 September 2018Mouser ElectronicsAuthorized DistributorClick to View Pricing, Inventory, Delivery & Lifecycle Information:N experia:74LVC245AD74LVCH245AD74LVCH245ADB74LVCH245APW74LVC245APW74LVC245ABQ,115 74LVC245AD,11274LVC245ADB,11274LVC245ADB,11874LVC245AD,11874LVC245APW,11274LVC245APW,11874LVCH245ABQ,11574LVCH245AD,11274LVCH245ADB,11274LVCH245ADB,118 74LVCH245AD,11874LVCH245APW,11274LVCH245APW,11874LVC245ABX,11574LVCH245ABX,115 74LVCH245APW/AUJ74LVC245APW/AUJ。

Copyright/版权声明/版權聲明The documentation and the software included with this product are copyrighted 2021 by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right to make improvements in the products described in this manual at any time without notice. No part of this manual may be reproduced, copied, translated or transmitted in any form or by any means without the prior written permission of Advantech Co., Ltd. Information provided in this manual is intended to be accurate and reliable. How-ever, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringe-ments of the rights of third parties, which may result from its use.随附本产品发行的文件为研华公司 2021 年版权所有，并保留相关权利。

针对本手册中相关产品的说明，研华公司保留随时变更的权利，恕不另行通知。

未经研华公司书面许可，本手册所有内容不得通过任何途径以任何形式复制、翻印、翻译或者传输。

本手册以提供正确、可靠的信息为出发点。

PC-7483 12位A/D 12位D/A 16路开关量DI/DO 3路脉冲计数/定时中断多功能板使用说明书目录一、概述 (2)二、技术指标 (3)三、工作原理 (3)1.工作原理简述 (3)2. 工作原理框图 (4)四、使用方法 (7)1.板基地址选择 (7)2.I/O端口地址定义 (8)3.接口插座定义 (8)4.跳线器定义 (9)5.A/D转换 (11)6.D/A转换 (12)五、使用程序例 (13)1. A/D转换 (13)2. D/A转换 (14)3. DI/DO (14)4．定时计数 (15)六．维修服务 (16)附录一编程指导及测试软件说明 (17)PC-7483/7426 A/D D/A DI/DO 脉冲计数/定时中断多功能综合板说明书一、概述PC-7483/7426板是为工业PC机或PC兼容机设计的一种多功能综合接口板。

板上有12位16路A/D输入、4路8位独立D/A输出、24路开关量输入/输出、3路脉冲计数/定时中断等多项功能。

本板适用于各种工业现场的数据测量及控制，集成度高，可靠性好，且价格低廉，深受用户欢迎。

符合PC（ISA）总线标准，以中断或查询方式工作，占用连续16个I/O地址。

A/D转换芯片采用高性能的AD1674芯片，板上A/D带有硬件增益放大，D/A 选用4片0832芯片，开关量选用82C55，定时计数用82C53芯片。

DC-DC电源隔离模块给模拟器件供电，用户无需从外部接入电源，从而进一步提高了可靠性。

PC-7483模拟量输入模拟量输出及脉冲信号由XS1 25芯D 型孔头接入。

24路开关量输入输出信号由XS2 26 芯IDC接头与现场连接，输入输出为TTL电平。

PC-7483具有极高的性能价格比，深受用户欢迎。

出厂时提供DOS下的测试程序和源程序代码（TC3）和Win95/98下测试程序和动态链接程序（DLL）及其调用格式，支持WINDOWS VC/VB，并提供两年的质保服务。

MPS430F149单片机之_模拟电压AD转换数码管显示数值/************************************************************** ***将P6口输入的模拟电压AD转换后，从P4,P5口连接的数码管输出*************************************************************** **/#include //声明库/************************************************************** ******数据类型定义*************************************************************** ******/#define uchar unsigned char#define uint unsigned int/************************************************************** ******数码管段码定义0123456789*************************************************************** ******/ucharTable[10]={0xc0,0Xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90}; //所需的段的位码uchar wei[4]={0XEF,0XDF,0XBF,0X7F};//控制位uint z,x,c,v, date=0; //定义数据类型/************************************************************** ********延时函数程序，参数i 延时时间*************************************************************** *******/void DelayMS(uint i){uint j;for(;i!=0;i--){for(j=200;j!=0;j--);}}/************************************************************** ********按键函数*************************************************************** *******/void KEY()//按键函数名{if(!(P1IN&BIT0))//判断按键按下{DelayMS(100);//消抖延时while(!(P1IN&BIT0));//判断按键松开date++;//按键数值加1}}/************************************************************** ********数码管动态扫描*************************************************************** ******/void Pre_Display(){/***********************数据转换*****************************/ z=date/1000; //求千位x=date%1000/100;//求百位c=date%100/10; //求十位v=date%10; //求个位P5OUT=wei[0]; //位控制P4OUT=Table[z]; //显示千位DelayMS(5); //延时P5OUT=wei[1]; //位控制P4OUT=Table[x]; //显示百位DelayMS(5); //延时P5OUT=wei[2]; //位控制P4OUT=Table[c]; //显示十位DelayMS(5); //延时P5OUT=wei[3]; //位控制P4OUT=Table[v]; //显示个位DelayMS(5); //延时}/************************************************************** ******I/O口初始化*************************************************************** ******/void Init_IO(void)//初始化I/O{P1DIR&=~BIT0;//设置P4口为输出P4DIR=0XFF;//设置P5口为输出P5DIR=0XFF;}/************************************************************** ******主函数*************************************************************** ******/void main(void)//主函数{Init_IO();//初始化I/OWDTCTL=WDTPW+WDTHOLD;//关闭看门狗while(1)//无限循环{KEY();//数码管显示数值Pre_Display();//数码管扫描显示函数}}/************************************************************** ******结束*************************************************************** ******/。

PCI-7488 12位32路高速光隔A/D转换板一﹑概述PCI-7488是带高速光电隔离器件面向工业过程而设计的12位32路A/D转换模板，符合PCI +5V总线标准，适合在所有PC机中运行。

PCI-7488 A/D转换芯片采用高性能的AD1764（BB774），它具有100KHz(10μS)转换速率，自带采样保持、参考电源等功能。

外部模拟量信号经过A/D转换后的数字量与计算机接口之间采用高速光电隔离芯片（光隔通过率1MHz），确保本板A/D转换的高可靠性和对计算机的安全性。

板上带有DC-DC隔离电源模块，用户无需从外部接入电源。

PCI-7488模拟量输入信号由37芯D型孔头接入的，可输入单端32路或双端16路模拟量信号，信号输入范围广，通过改变跳线器就可选择不同的电压范围。

本板占用4个物理I/O端口地址，可采用查询或中断方式工作。

PCI-7488出厂时提供Win95/98/2000/NT下测试程序和动态链接程序（DLL）及编程指导（DEMO程序），有VB/VC 采集程序例程，并提供两年的质保服务。

由于是PCI总线，用户不必关心板卡的实际地址，安装板卡时，PCI协议自动分配该板的基地址PCI-7488采用查询或中断两种方式工作，中断方式由A/D转换完成信号作为中断的触发信号，接到PCI INTA 上。

由于本板路数多，建议用户用查询方式工作。

在实际使用时，A/D转换时间一定，计算机运行速度越快，I/O延时需加大。

本板为四层模板，采用表贴芯片。

技术指标及性能特点:·分辩率：12位·通道数：单端32路/差分16路·A/D芯片：AD1674/BB774·A/D转换时间：10μS·单通道采集速率：100KHZ·输入电压量程：单极性：0～5V；0～10V双极性：±2.5V；±5V；±10V ·物理I/O端口地址：出厂时：BASE+0H～3H·工作方式：软件查询；中断（INTA）·光电隔离器件：一分钟可耐压5000V·电源：DC-DC电源隔离模块，无需外接电源·地线：不共地，数字地与模拟地分离·最大差动输入值：20V（±10V）·输出码制：单极性时为二进原码双极性时为二进制偏移码·总误差：<2‟·可在Win95/98/2000/NT下运行，支持VB、VC·电源功耗：350mA·总线接口：符合PCI总线+5V标准·尺寸大小：165mm×116mm二﹑工作原理1. 原理框图图1：PCI-7488原理框图2．工作原理PCI-7488板由通道多选开关、A/D转换、光电隔离、地址译码、逻辑控制及数据缓冲、PCI-ISA桥等几大部分组成。

testing of all parameters.POST OFFICE BOX 655303• DALLAS, TEXAS 752651description/ordering informationNC − No internal connectionThis eight-channel CMOS analog multiplexer/demultiplexer is pin compatible with the ’4051 function and, additionally, features injection-current effect control, which has excellent value in automotive applications where voltages in excess of normal supply voltages are common.The injection-current effect control allows signals at disabled analog input channels to exceed the supply voltage without affecting the signal of the enabled analog channel. This eliminates the need for external diode/resistor networks typically used to keep the analog channel signals within the supply-voltage range.ORDERING INFORMA TION tT APACKAGE ‡ORDERABLE PART NUMBER TOP-SIDE MARKING−40°C to 125°CSOIC − D Tape and reel SN74HC4851QDRQ1 HC4851Q TSSOP − PW Tape and reel SN74HC4851QPWRQ1 HC4851Q TSSOP − PWTape and reelSN74HC4851QPWRG4Q1HC4851Q† For the most current package and ordering information, see the Package Option Addendum at the end ofthis document, or see the TI web site at .‡ Package drawings, thermal data, and symbolization are available at /packaging.FUNCTION T ABLEINPUTSON CHANNEL INHCBAL L L L L L L H L L H L L L H H L H L L L H L H L H H L L H H H H X X XY0 Y 1 Y 2 Y 3 Y 4 Y 5 Y 6 Y 7 NonePlease be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include Copyright © 2008−2012, Texas Instruments Incorporatedlogic diagram (positive logic)COMY0A BY1Y2Y3Y4Y5Y6Y7POST OFFICE BOX 655303 • DALLAS, TEXAS 752652absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†Supply voltage range, V CC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Input voltage range, V I (see Note 1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V CC + 0.5 V Switch I/O voltage range, V IO (see Notes 1 and 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V CC + 0.5 V Input clamp current, I IK (V I < 0 or V I > V CC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA I/O diode current, I IOK (V IO < 0 or V IO > V CC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Switch through current, I T (V IO = 0 to V CC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 mA Continuous current through V CC or GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Package thermal impedance, θJA (see Note 3): D package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/WPW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108°C/W Storage temperature range, T stg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.2. This value is limited to 5.5 V maximum.3. The package thermal impedance is calculated in accordance with JESD 51-7.recommended operating conditions (see Note 4)MIN MAX UNITV CC Supply voltage 2 6VHigh-level input voltage, V IH control inputs V CC = 2 V 1.5V V CC = 3 V 2.1V CC = 3.3 V 2.3V CC = 4.5 V 3.15V CC = 6 V 4.2Low-level input voltage, V IL control inputs V CC = 2 V0.5V V CC = 3 V0.9V CC = 3.3 V1V CC = 4.5 V 1.35V CC = 6 V 1.8V I Control input voltage0 V CC V V IO Input/output voltage0 V CC VΔt/Δv Input transition rise or fall time V CC = 2 V1000ns V CC = 3 V800V CC = 3.3 V700V CC = 4.5 V500V CC = 6 V400T A Operating free-air temperature−40 125°C NOTE 4: All unused inputs of the device must be held at V CC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3POST OFFICE BOX 655303• DALLAS, TEXAS 752654PARAMETERTEST CONDITIONSV CC T A = 25°C UP TO 85°C UP TO 125°C UNITMINTYP MAX MINMAX MINMAXr On-stateI T ≤ 2 mA,V I = V CC to GND, V INH = V IL(see Figure 5)2.V 500 650 670 700Ω3 V 215 280 320 360 3.3 V 210 270 305 345 4.5 V 160 210 240 270 6 V 150 195 220 250Difference inΔr onon-state resistance between switchesI T ≤ 2 mA, V I = V CC /2, V INH = V IL 2.V 4 13 18 23Ω3 V 2 10 12 16 3.3 V 2 9 12 16 4.5 V 2 9 12 16 6 V 310 14 19 I IControl input current V I = V CC or GND 6 V±0.1±0.1±1μAI S(off)Off-state switch leakage current (any one channel) V I = V CC or GND, V INH = V IH(see Figure 6)6 V±0.1±0.5±1μAOff-state switch leakage current (common channel) V I = V CC or GND, V INH = V IH(see Figure 7) ±0.2 ±2 ±4On-state switch I S(on) leakage current V I = V CC or GND, V INH = V IL(see Figure 8)6 V±0.1±0.5±1μA I CC Supply current V I = V CC or GND 6 V220 40 μA C IC Control input capacitance A, B, C, INH3.510 1010pFCommon terminal C IS capacitanceSwitch off22 404040pF C OSSwitch terminal capacitance Switch off6.7151515pFelectrical characteristics over recommended operating free-air temperature range (unless otherwise noted)r onswitch resistanceinjection current coupling specifications, T A = −40°C to 125°CP ARAMETERV CCTEST CONDITIONSMIN TYP †MAX UNITVΔoutMaximum shift of output voltage of enabled analog channel3.3 VR S ≤ 3.9 k ΩI I ‡ ≤ 1 mA0.05 1mV5 V 0.1 1 3.3 VI I ‡ ≤ 10 mA 0.345 5 5 V 0.067 5 3.3 VR S ≤ 20 k ΩI I ‡ ≤ 1 mA 0.05 2 5 V 0.11 2 3.3 VI I ‡ ≤ 10 mA0.05 20 5 V0.02420† Typical values are measured at T A= 25°C.‡ I I= total current injected into all disabled channelsswitching characteristics over recommended operating free-air temperature range, V CC = 2 V, C L = 50 pF (unless otherwise noted) (see Figures 9−14)PARAMETERFROM(INPUT)TO(OUTPUT)T A = 25°C UP TO 85°C UP TO 125°CUNITMIN TYP MAX MIN MAX MIN MAXt PLH Propagationt PHL delay timeCOM or Yn Yn or COM19.5 303437ns t PLH Propagationt PHL delay timeA, B, C COM or Yn23 354045ns t PZH Enablet PZL delay timeINH COM or Yn95105115ns t PHZ Disablet PLZ delay timeINH COM or Yn95105115nsswitching characteristics over recommended operating free-air temperature range,V CC = 3 V, C L = 50 pF (unless otherwise noted) (see Figures 9−14)PARAMETERFROM(INPUT)TO(OUTPUT)T A = 25°C UP TO 85°C UP TO 125°CUNITMIN TYP MAX MIN MAX MIN MAXt PLH Propagationt PHL delay timeCOM or Yn Yn or COM12 17.519.521.5ns t PLH Propagationt PHL delay timeA, B, C COM or Yn13.5 19.52225ns t PZH Enablet PZL delay timeINH COM or Yn90100110ns t PHZ Disablet PLZ delay timeINH COM or Yn90100110nsswitching characteristics over recommended operating free-air temperature range,V CC = 3.3 V, C L = 50 pF (unless otherwise noted) (see Figures 9−14)PARAMETERFROM(INPUT)TO(OUTPUT)T A = 25°C UP TO 85°C UP TO 125°CUNITMIN TYP MAX MIN MAX MIN MAXt PLH Propagationt PHL delay timeCOM or Yn Yn or COM11 16.518.520.5nst PLH Propagationt PHL delay timeA, B, C COM or Yn12.5 18.52124nst PZH Enablet PZL delay timeINH COM or Yn8595105nst PHZ Disablet PLZ delay timeINH COM or Yn8595105nsPOST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5switching characteristics over recommended operating free-air temperature range, V CC = 4.5 V, C L = 50 pF (unless otherwise noted) (see Figures 9−14)PARAMETERFROM(INPUT)TO(OUTPUT)T A = 25°C UP TO 85°C UP TO 125°CUNITMIN TYP MAX MIN MAX MIN MAXt PLH Propagationt PHL delay timeCOM or Yn Yn or COM8.6 141516ns t PLH Propagationt PHL delay timeA, B, C COM or Yn10 161820ns t PZH Enablet PZL delay timeINH COM or Yn8090100ns t PHZ Disablet PLZ delay timeINH COM or Yn8090100nsswitching characteristics over recommended operating free-air temperature range,V CC = 6 V, C L = 50 pF (unless otherwise noted) (see Figures 9−14)PARAMETERFROM(INPUT)TO(OUTPUT)T A = 25°C UP TO 85°C UP TO 125°CUNITMIN TYP MAX MIN MAX MIN MAXt PLH Propagationt PHL delay timeCOM or Yn Yn or COM8 12.513.514.5ns t PLH Propagationt PHL delay timeA, B, C COM or Yn9.5 151719ns t PZH Enablet PZL delay timeINH COM or Yn788080ns t PHZ Disablet PLZ delay timeINH COM or Yn788080ns operating characteristics, T A = 25°C (see Figure 15)P ARAMETER V CC TEST CONDITIONS TYP UNITC pd Power dissipation capacitance3.3 VNo load32pF5 V37POST OFFICE BOX 655303 • DALLAS, TEXAS 752656POST OFFICE BOX 655303• DALLAS, TEXAS 752657APPLICATION INFORMA TIONV CC = 5 VVV out = V I 1 V ± V ΔoutFigure 1. Injection-Current Coupling SpecificationFigure 2. Alternate Solution Requires 32 Passive Components and One Extra 6-V Regulatorto Suppress Injection Current Into a Standard ’HC4051 MultiplexerPOST OFFICE BOX 655303• DALLAS, TEXAS 752658APPLICATION INFORMA TIONFigure 3. Solution by Applying the ’HC4851 MultiplexerGate = V CC (Disabled)Figure 4. Diagram of Bipolar Coupling Mechanism(Appears if V IN Exceeds V CC , Driving Injection Current Into the Substrate)POST OFFICE BOX 655303• DALLAS, TEXAS 752659PARAMETER MEASUREMENT INFORMATIONV V CCV I = V CC to GNDV Or on= V I – V O QITFigure 5. On-State-Resistance Test CircuitV CCGNDVFigure 6. Maximum Off-Channel Leakage Current, Any One Channel, Test SetupV CCGNDVNCV CCV CCFigure 7. Maximum Off-Channel Leakage Current,Common Channel, Test SetupFigure 8. Maximum On-Channel Leakage Current,Channel to Channel, Test SetupPARAMETER MEASUREMENT INFORMATIONTest ChannelSelectAnalogV CCGNDPointOutFigure 9. Propagation Delays,Channel Select to Analog Out† Includes all probe and jig capacitanceFigure 10. Propagation-Delay Test Setup,Channel Select to Analog OutTestPoint Analog InV CCGNDAnalog Out† Includes all probe and jig capacitanceFigure 11. Propagation Delays,Analog In to Analog OutFigure 12. Propagation-Delay Test Setup,Analog In to Analog OutPOST OFFICE BOX 655303 • DALLAS, TEXAS 752651SN74HC4851-Q1 8-CHANNEL ANALOG MULTIPLEXER/DEMUL TIPLEXER WITH INJECTION-CURRENT EFFECT CONTROL SCLS554C − JANUARY 2004 − REVISED OCTOBER 2012PARAMETER MEASUREMENT INFORMATION V CC GNDV ΩHigh TestImpedance V OL V OHHighImpedancePointFigure 13. Propagation Delays, Enable to Analog Out Figure 14. Propagation-Delay Test Setup, Enable to Analog OutNCFigure 15. Power-Dissipation Capacitance Test SetupPACKAGING INFORMATION(1) The marketing status values are defined as follows:ACTIVE: Product device recommended for new designs.LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.PREVIEW: Device has been announced but is not in production. Samples may or may not be available.OBSOLETE: TI has discontinued the production of the device.(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. 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If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device.(6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width.Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken andAddendum-Page 1continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.OTHER QUALIFIED VERSIONS OF SN74HC4851-Q1 :•Catalog: SN74HC4851NOTE: Qualified Version Definitions:•Catalog - TI's standard catalog productAddendum-Page 2TAPE AND REEL INFORMATION*All dimensions are nominal Device Package Type Package DrawingPinsSPQ Reel Diameter (mm)Reel Width W1(mm)A0(mm)B0(mm)K0(mm)P1(mm)W (mm)Pin1Quadrant SN74HC4851QPWRG4Q 1TSSOPPW 162000330.012.4 6.9 5.6 1.68.012.0Q1SN74HC4851QPWRQ1TSSOP PW 162000330.012.4 6.9 5.6 1.68.012.0Q1*All dimensions are nominalDevice Package Type Package Drawing Pins SPQ Length(mm)Width(mm)Height(mm) SN74HC4851QPWRG4Q1TSSOP PW162000367.0367.035.0SN74HC4851QPWRQ1TSSOP PW162000367.0367.035.0PACKAGE OUTLINETSSOP - 1.2 mm max heightPW0016A SMALL OUTLINE PACKAGENOTES:1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M.2. This drawing is subject to change without notice.3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall notexceed 0.15 mm per side.4. This dimension does not include interlead flash. Interlead flash shall not exceed 0.25 mm per side.5. Reference JEDEC registration MO-153.EXAMPLE BOARD LAYOUTTSSOP - 1.2 mm max heightPW0016A SMALL OUTLINE PACKAGENOTES: (continued)6. Publication IPC-7351 may have alternate designs.7. Solder mask tolerances between and around signal pads can vary based on board fabrication site.EXAMPLE STENCIL DESIGNTSSOP - 1.2 mm max heightPW0016A SMALL OUTLINE PACKAGENOTES: (continued)8. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations.9. 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74HC238; 74HCT2383-to-8 line decoder/demultiplexerRev. 5 — 13 June 2018Product data sheet1General descriptionThe 74HC238; 74HCT238 decodes three binary weighted address inputs (A0, A1 andA2) to eight mutually exclusive outputs (Y0 to Y7). The device features three enableinputs (E1 and E2 and E3). Every output will be LOW unless E1 and E2 are LOW andE3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32(5 to 32 lines) decoder with just four '238 ICs and one inverter. The '238 can be usedas an eight output demultiplexer by using one of the active LOW enable inputs as thedata input and the remaining enable inputs as strobes. Inputs include clamp diodes. Thisenables the use of current limiting resistors to interface inputs to voltages in excess ofV CC.2Features and benefits•Demultiplexing capability•Multiple input enable for easy expansion•Ideal for memory chip select decoding•Active HIGH mutually exclusive outputs•Multiple package options•Complies with JEDEC standard no. 7A•Input levels:–For 74HC238: CMOS level–For 74HCT238: TTL level•ESD protection:–HBM JESD22-A114F exceeds 2000 V–MM JESD22-A115-A exceeds 200 V•Specified from -40 °C to +85 °C and from -40 °C to +125 °C3Ordering information3-to-8 line decoder/demultiplexer4Functional diagram001aag7523 TO 8 DECODERENABLE EXITING A01A12A23E14E25E36Y015Y114Y213Y312Y411Y510Y69Y77Figure 1. Logic symbol 001aag7533 TO 8 DECODERENABLE EXITINGA01A12A23E14E25E36Y015Y114Y213Y312Y411Y510Y69Y77Figure 2. Functional diagram3-to-8 line decoder/demultiplexer 5Pinning information5.1Pinning5.2Pin description3-to-8 line decoder/demultiplexer 6Functional descriptionTable 3. Function tableH = HIGH voltage level; L = LOW voltage level; X = don’t care.7Limiting valuesTable 4. Limiting valuesIn accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).[1]The input and output voltage ratings may be exceeded if the input and output current ratings are observed.[2]For SO16 package: above 70 °C the value of P tot derates linearly at 8 mW/K.For SSOP16 and TSSOP16 packages: above 60 °C the value of P tot derates linearly at 5.5 mW/K.For DHVQFN16 package: above 60 °C the value of P tot derates linearly at 4.5 mW/K.3-to-8 line decoder/demultiplexer 8Recommended operating conditionsTable 5. Recommended operating conditionsVoltages are referenced to GND (ground = 0 V).9Static characteristicsTable 6. Static characteristicsAt recommended operating conditions; voltages are referenced to GND (ground = 0 V).3-to-8 line decoder/demultiplexer3-to-8 line decoder/demultiplexer 10Dynamic characteristicsTable 7. Dynamic characteristicsGND = 0 V; test circuit see Figure 8.3-to-8 line decoder/demultiplexer[1]t pd is the same as t PHL and t PLH.[2]t t is the same as t THL and t TLH.[3]C PD is used to determine the dynamic power dissipation (P D in μW):P D = C PD x V CC2 x f i x N + ∑ (C L x V CC2 x f o) where:f i = input frequency in MHz;f o = output frequency in MHz;C L = output load capacitance in pF;V CC = supply voltage in V;N = number of inputs switching;∑ (C L x V CC2 x f o) = sum of outputs.10.1Waveforms and test circuit3-to-8 line decoder/demultiplexer3-to-8 line decoder/demultiplexer3-to-8 line decoder/demultiplexer 11Package outline3-to-8 line decoder/demultiplexer3-to-8 line decoder/demultiplexer3-to-8 line decoder/demultiplexer3-to-8 line decoder/demultiplexer 12Abbreviations13Revision history3-to-8 line decoder/demultiplexer 14Legal information14.1 Data sheet status[1]Please consult the most recently issued document before initiating or completing a design.[2]The term 'short data sheet' is explained in section "Definitions".[3]The product status of device(s) described in this document may have changed since this document was published and may differ in case of multipledevices. 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Nexperia accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without Nexperia's warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond Nexperia's specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies Nexperia for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond Nexperia's standard warranty and Nexperia's product specifications.Translations — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions.14.4 TrademarksNotice: All referenced brands, product names, service names and trademarks are the property of their respective owners.3-to-8 line decoder/demultiplexerContents1General description (1)2Features and benefits (1)3Ordering information (1)4Functional diagram (2)5Pinning information (3)5.1Pinning (3)5.2Pin description (3)6Functional description (4)7Limiting values (4)8Recommended operating conditions (5)9Static characteristics (5)10Dynamic characteristics (7)10.1Waveforms and test circuit (8)11Package outline (11)12Abbreviations (15)13Revision history (15)14Legal information (16)Please be aware that important notices concerning this document and the product(s)described herein, have been included in section 'Legal information'.Mouser ElectronicsAuthorized DistributorClick to View Pricing, Inventory, Delivery & Lifecycle Information:N experia:74HC238BQ,11574HC238D,65274HC238DB,11274HC238DB,11874HC238D,65374HC238N,65274HC238PW,11274HC238PW,11874HCT238BQ,11574HCT238D,65274HCT238DB,11274HCT238DB,118 74HCT238D,65374HCT238N,65274HCT238PW,11274HCT238PW,118。

Figures4–6 and 4–7 show receiver input and transmitter output waveforms, respectively, for all differential I/O standards (LVDS and LVPECL).Figure4–6.Receiver Input Waveforms for Differential I/O StandardsFigure4–7.Transmitter Output Waveforms for Differential I/O StandardsPin CapacitanceTable 4–51 shows the Stratix II GX device family pin capacitance.Table 4–50.Series and Differential On-Chip Termination Specification for Left I/O Banks Note (1)SymbolDescription Conditions Resistance ToleranceCommercial Max Industrial Max Unit 25-Ω R S3.3/2.5Internal series termination without calibration (25-Ω setting )V CCIO = 3.3/2.5V ±30 ±30%50-Ω R S3.3/2.5/1.8Internal series termination without calibration (50-Ω setting )V CCIO = 3.3/2.5/1.8V ±30 ±30%50-Ω R S 1.5Internal series termination without calibration (50-Ω setting )V CCIO = 1.5V ±36 ±36%R D Internal differential termination forLVDS (100-Ω setting)V CCIO = 2.5 V ±20 ±25%Note to Table 4–50:(1)On-chip parallel termination with calibration is only supported for input pins.Table 4–51.Stratix II GX Device CapacitanceNote (1)SymbolParameter Typical Unit C IOTBInput capacitance on I/O pins in I/O banks 3, 4, 7, and 8. 5.0pF C IOLInput capacitance on I/O pins in I/O banks 1 and 2, including high-speed differential receiver and transmitter pins. 6.1pF C CLKTBInput capacitance on top/bottom clock input pins: CLK[4..7] and CLK[12..15]. 6.0pF C CLKLInput capacitance on left clock inputs: CLK0 and CLK2. 6.1pF C CLKL+Input capacitance on left clock inputs: CLK1 and CLK3. 3.3pF C OUTFB Input capacitance on dual-purpose clock output/feedback pins in PLLbanks 11 and 12. 6.7pFNote to Table 4–51:(1)Capacitance is sample-tested only. Capacitance is measured using time-domain reflections (TDR). Measurementaccuracy is within ±0.5pF.DC and Switching CharacteristicsPower Consumption Altera offers two ways to calculate power for a design: the Excel-based PowerPlay early power estimator power calculator and the Quartus® II PowerPlay power analyzer feature.The interactive Excel-based PowerPlay early power estimator is typically used prior to designing the FPGA in order to get an estimate of device power. The Quartus II PowerPlay power analyzer provides better quality estimates based on the specifics of the design after place-and-route is complete. The power analyzer can apply a combination of user-entered, simulation-derived and estimated signal activities which, combined with detailed circuit models, can yield very accurate power estimates.In both cases, these calculations should only be used as an estimation of power, not as a specification.f For more information on PowerPlay tools, refer to the PowerPlay EarlyPower Estimators (EPE) and Power Analyzer, the Quartus II PowerPlayAnalysis and Optimization Technology, and the PowerPlay Power Analyzerchapter in volume 3 of the Quartus II Handbook. The PowerPlay earlypower estimators are available on the Altera web site atwww.altera. com.1See Table4–23 on page42 for typical I CC standby specifications. Timing Model The DirectDrive technology and MultiTrack interconnect ensurepredictable performance, accurate simulation, and accurate timinganalysis across all Stratix II GX device densities and speed grades. Thissection describes and specifies the performance, internal, external, andPLL timing specifications.All specifications are representative of worst-case supply voltage andjunction temperature conditions.Preliminary and Final TimingTiming models can have either preliminary or final status. The Quartus IIsoftware issues an informational message during the design compilationif the timing models are preliminary. Table4–52 shows the status of theStratix II GX device timing models.Preliminary status means the timing model is subject to change. Initially,timing numbers are created using simulation results, process data, andother known parameters. These tests are used to make the preliminarynumbers as close to the actual timing parameters as possible.DC and Switching Characteristics。

YAV8AD-24高精度串口采集卡技术手册V1801武汉亚为电子科技有限公司DAM7452关于本手册为亚为推出的YAV8AD-24数据采集卡的用户手册，主要内容包括功能概述、8路模拟量输入功能、应用实例、性能测试、注意事项及故障排除等。

说明序号版本号编写人编写日期支持对象应用时间特别说明1 1.0郑先科2014.05RS2328AD plus采集卡2 2.0郑先科2016.01YAV8AD采集卡3 3.0郑先科2017.01YAV8AD plus采集卡2017.01适用于RS232\485\WiFi\GPRS ZIGBEE\蓝牙\433M无线4 4.0李雪2017.08YA V8AD-24采集卡目录0.快速上手 (1)产品包装内容 (1)应用软件 (1)接口定义 (1)⏹端子排列 (1)⏹端子描述 (2)通信 (3)采集卡指示灯 (3)1.产品概述 (3)技术指标 (3)⏹模拟信号输入 (4)⏹通信总线 (4)⏹供电 (5)⏹温度参数 (5)硬件特点 (5)原理框图 (6)机械规格 (7)2.采集卡信号接线 (8)AI模拟量接线 (8)DI数字量接线 (8)DO数字量接线 (9)3.模拟量输入功能 (10)模拟量输入 (10)输入采样原理 (10)输入接线 (10)采样值计算 (11)⏹无符号整型 (11)⏹24位精度采集值的计算方法 (11)⏹模拟量值 (12)4.通信协议 (13)MODBUS-RTU通信协议 (13)5.应用实例 (16)采集卡连接 (16)软件功能 (17)软件应用 (17)⏹亚为串口采集卡通用采集平台 (18)⏹LabVIEW (18)⏹MODBUS RTU通信 (19)6.注意事项及故障排除 (19)注意事项 (19)⏹存储说明 (19)⏹出货清单 (19)⏹质保及售后 (20)⏹特别说明 (20)故障排除 (21)⏹无法正常采集数据 (21)⏹VI文件打不开 (21)⏹多卡不识别 (22)⏹不显示波形 (22)⏹采集速度不够 (22)软件弹出错误 (22)7.性能测试 (22)安全规范 (22)耐电压范围测试 (23)环境适应性测试 (23)8.文档权利及免责声明 (24)9.联系方式.........................................................................................................................错误！未定义书签。

案）第一种：多个485协议控制设备，如矩阵、硬盘录像机、编解码器等485控制设备。

(AD8104解决）第二种：曼码协议矩阵和485协议的硬盘录像机的混合控制系统（AD1692、AD8102解决,功能同WS8108控制码混合分配器AD8104——4路485协议码混合识别器（485共享器、集线器、派尔高PELCO D/P协议智能识别控制器）功能特点： 1.四个RS485 输入端口，共享控制一个RS485 输出端口。

各个端口之间为全光电隔离的，独立驱动，互相不影响。

2.每个输入端口均有相应的指示灯对应，可以迅速判断现场哪根总线出问题了。

3.兼容设备间不同的通讯协议、纯硬件上RS485 信号的分隔485总线。

4.从根本上解决了不能多台设备（硬盘录像机）控制多台设备（球机）的问题。

5.适合多台RS485 设备，需要控制同一个RS485 设备的环境下使用。

6.可以多台共享器级联，以扩充输入设备的容量。

7.485共享器的各个端口之间是相互隔离的，相互独立驱动的，保证了整个系统的稳定性。

8.485共享器采用几乎零延时设计，数据可以双向传输，自动判别流向。

9.根据客户要求，可以定制：8口485输入、带优先级的控制器，适用于存在上下级关系、主副控制级别的多级控制系统。

例如：老总控制图像时，监控室是不能控制图像的。

8个RS485 输入端口，6个RS485 输出端口。

状态指示：8个输入端口指示灯，1个输出指示灯。

优先级设置，由高到低级别，1至8不受设备间通讯协议、波特率的影响，完全硬件上RS485 信号的桥接。

从根本上解决了不能多台设备（硬盘录像机）控制多台设备（球机）的问题。

适合多台RS485 设备，需要控制多个RS485 设备的环境下使用。

可以多台共享器级联，以扩充输入设备的容量。

现有的监控系统中，一般都是矩阵主机，控制键盘主机，硬盘录像机单独存在监控系统中，但是在有些特殊的情况下，需要其共存于一个监控系统中，在此情况下，需要使用485集线器将多个RS485输入端口共享成一个RS485输出端口，通过一个统一的RS485输出端口控制云台。

PLUTO Safety-PLCManualAbsolute EncodersTable of contents:1General (3)1.1Reaction time (3)1.2Safety parameters (3)2Electrical (4)2.1Separation with Gateway in Bridge Mode (5)2.2CAN bus data (5)3Singleturn encoder RSA 597/RHA 597 (6)3.1Address setting (6)3.2Software settings (7)3.2.1Baudrate (7)3.2.2Scale (7)3.2.3Position adjustment (8)3.3Speed limit (9)3.4Technical data (9)3.4.1Electrical data (9)3.4.2Mechanical data (10)4Multiturn encoder RSA 698/RHA 698 (13)4.1Connectors (13)4.2Indicators (13)4.3Address setting (14)4.4Baudrate (14)4.5Software settings (14)4.5.1Scaling (15)4.5.2Position adjustment (15)4.6Technical data (16)4.6.1Electrical data (16)4.6.2Mechanical data (17)5PLC Software - Description of function blocks (20)5.1SafeEncoder (20)5.2SafeEncoderMult (21)5.2.1SafeEncoderMult32 (22)5.3EncoderCam (23)5.3.1EncoderCam_R (23)5.3.2EncoderCam32 (23)1 GeneralPluto can handle up to 16 absolute encoders connected to the CAN bus. However, the encoders themselves can only be addressed to one of 8 different addresses (for Multiturn encoders 9 addresses, but a safe solution requires that the encoders are mounted in pairs). This leads to that in practice a maximum of 8 encoders can be used.One of the Pluto units on the bus must have software option for communication with the encoders. This special Pluto sends cyclically a sync telegram, which trigs all encoders on the bus to read the position and send a telegram with the position value back to the bus. The special Pluto can read the encoder telegrams and evaluate them. With block functions in the PLC code it is then possible to make a dual channel function with two encoders. Out of this the user gets failsafe values for position and speed including stand still monitoring and over speed detection.The encoders are standard absolute encoders with modified software to meet the safety requirements.1.1 Reaction timeThe encoders are read every 10 ms. The system tolerates that a single reading of an encoder fails, but if two or more fails, it leads to failure alarm. This leads to the response times as below. Response time:Normal conditions: 11 ms + program execution time ≈ 14 msBy fault: 31 ms + program execution time ≈ 34 ms1.2 Safety parametersA system with two encoders connected to a Pluto with a PLC program which uses the block functions described in this manual (see 5) meets the safety levels below.The values are the same as for the use of other input types, such as normal digital I/O:s or AS-i bus sensors. The values are including the encoders.SIL according to IEC 61508, EN 62061SIL 3Charge pump outputs* (Q2, Q3)PFD AV (for proof test interval = 20 years) 1.5 x 10-4PFH D according to IEC 61508, EN 62061 1.5 x 10-9Relay outputs* (Q0, Q1, Q4, Q5)PFD AV (for proof test interval = 20 years) 1.5 x 10-4PFH D according to IEC 61508, EN 62061 2.0 x 10-9PL according to EN ISO 13849-1PL eCategory according to EN ISO 13849-14MTTF d according to EN ISO 13849-1High/1500 yearsDC avg according to EN ISO 13849-1High*Encoder to output.For more details see Pluto hardware manual.2Electrical2.1 Separation with Gateway in Bridge ModeBy using a Gateway GATE-C2 or GATE-D2 in bridge mode it is possible to separate the Encoders so that different Pluto units communicate with different Encoders. The Gateway will filter out the Encoder telegrams, but let the other telegrams pass through. (See 8.1 “Pluto filter” in thePluto_Gateway_Manual.)2.2 CAN bus dataEach encoder gives bus load equivalent to two Pluto units. This leads to that with a certain CAN speed, the maximum amount of Pluto units will be reduced by two for each encoder. For example a Pluto-bus running with 250 kbit/s and 4 encoders can have 14-24 Pluto units instead of 22-32.For bus data as cable length / baudrate, amount of bus nodes, etc., see Pluto - Operating instructions - Hardware.In this example Pluto 1 communicates with Encoder 1 and 2, while Pluto 3 communicates with Encoder 3 and 4.3 Singleturn encoder RSA 597/RHA 597The singleturn encoder comes in four variants:·RSA 597 with 12-pin connector.·RSA 597 with 1.5 meter cable.·RHA 597 with hollow shaft and 2 meter cable.·RHA 597 with hollow shaft and 10 meter cable.Besides connection of power supply and CAN bus the connector/cable is also used for setting the address with jumpers (see Address settings below).3.1 Address settingThe encoder must be addressed 1-8 by connecting pin 1…4 with pin 11 in the connector/cable. By exchange of encoder the addressing will automatically be made by fitting the connector.1 = Not connected0 = Connected to pin 11.Example: Encoder address 3 – Pin 3 connected to Pin 11 and Pin 1, 2, 4 not connected.3.2 Software settingsAn encoder can be adjusted from Pluto by using Terminal Window in Pluto Manager.By connection the prompt Pluto_A> shall be visible.Type “encoder” for entering the encoder menu where it is possible to change baudrate (B), set the current position (A) and rescale the encoder (I).NOTE: If an encoder with wrong baud rate is connected to a running Pluto buss the CAN-bus communication fails.3.2.1 BaudrateBaudrate: 125, 250, 500, 800 kbit/s or 1 Mbit/s. (Default Pluto setting 400kbit/s is not possible.)At delivery the encoders are set to 500 kbps. Note that the encoder must be powered off/on before the new setting is valid.3.2.2 ScaleExample of setting the scale to degrees.Addr.Pin 4Parity Pin 3Bit 2Pin 2Bit 1Pin 1Bit 010001200103101140100511016111070111810003.2.3 Position adjustment The current position is setto 90.3.3 Speed limitBy use of single turn encoder for speed monitoring the maximum allowed rotating speed is limited to 50 rev/s = 3000 rpm. If the speed is exceeded the speed value will be negative.Note: It must be secured by limitations in application that the maximum speed is not exceeded or that no dangerous situations can occur if it does.Examples of such limitations are: An induction motor which speed is limited by the frequency or a hydraulic cylinder which is limited by a maximum pump capacity.3.4 Technical dataType designation Variant Interface Article number, ABBRSA 597With 12-pole connector CAN042TLA020070R3600RSA 597With 1.5 m. cable CAN042TLA020070R3300RHA 597Hollow shaft, with 2 m. cable CAN042TLA020070R3400RHA 597Hollow shaft, with 10 m. cable CAN042TLA020070R5900Encoder dataType RSA 597, RHA 597Operating temperature-40°C .. +70°CStorage temperature-30°C .. +70°CIngress protection class IP-67 according to IEC 60529At shaft inlet IP-66 according to IEC 60529Vibration (55 to 2000Hz)< 300 m/s2 according to IEC 60068-2-6Shock (6ms)< 2000 m/s2 according to IEC 60068-2-27Cover material AluminiumCover surface treatment Coated and cromated or anodizedWeight Approx. 300gAccuracy and resolutionResolution13 Bit, 8192 positions per revolutionAccuracy± ½ LSB3.4.1 Electrical dataDefault baud rate is 500kbit/s.Power supply9-36 VdcPolarity protected YesOutput interface CANPlutoShort circuit protected YesInterface CAN specifications 2.0 part A and BApplication layer Safe EncoderBaud rate 5 kbit/s - 1 Mbit/sCAN identifier 3 bit hardware adjustableAddress input Active lowCode type BinaryProgrammable functions Resolution, PresetDirection, Baud rateNode IDCurrent consumption50mA @ 24VdcMax current consumption 100mA3.4.2 Mechanical dataRSA 597 with 12-pin connectorShaft specification Flange specificationShaft typeØ 10 with face Flange type63, Synchro Axial shaft load50 N Outer diameterø58 mm Radial shaft load60 N Mounting holes 3 x M4 Mech. permissible speed 6000 rpm (12 000)Flange material Aluminium Shaft material Stainless steel Surface treatment Anodized Moment of inertia2,0 x 10-6 kgm2RSA 597 with cableShaft specification Flange specificationShaft typeØ6with face Flange type63, Synchro Axial shaft load50 N Outer diameterø58 mm Radial shaft load60 N Mounting holes 3 x M4 Mech. permissible speed 6000 rpm (12 000)Flange material Aluminium Shaft material Stainless steel Surface treatment Anodized Moment of inertia1,9 x 10-6 kgm2RHA 597 hollow shaft with cableShaft specification Flange specificationHollow shaft typeØ 12hs Flange type56, hollow shaft Axial shaft load10 N Diameterø58 mmRadial shaft load20 N Flange material Aluminium Mech. permissible speed 6000 rpm Surface treatment AnodizedShaft material Stainless steel Torque support Torque arm Moment of inertia2,0 x 10-6 kgm24 Multiturn encoder RSA 698/RHA 6984.1 Connectors4.2 IndicatorsSTATUS : Follows the CANopen standard.GreenOK Flashing red/greenFault Example:Wrong baudrate Baudrate conflict Flashing green/short redNo contact with busMODULE: Indicates sensor status.GreenOK Flashing redFault Example:Address switches set to different values Baudrate switch set to 9.Sensor faultCAN Bus Pin CAN Shield 1(CAN V+)*2(CAN GND)*3CAN High 4CAN Low5*Normally not usedPower supply 24 VDC Pin +24 Volt 1-20 Volt 3-4Switches under the cover.Address switches must be set to same value.Connectors and indicators4.3 Address settingThe address is set by the two rotaryswitches under the cover. The two address switches shall be set to the same value.Note : The encoder must be powered off/on before the new setting is valid.4.4 BaudrateThe baudrate is set by the switch under the cover.Note : The encoder must be powered off/on before the new setting is valid.4.5 Software settingsVia Terminal window in Pluto Manager it is possible to scale, set actual position and get information.- Connect the computer to Pluto and start Pluto Manager. Start the terminal window.- Start by typing encoder and v and sto see if the encoders are present on the bus:In this case encoder 5 and 6 are present on the bus.The “v” command (version) shows serial number, version of hardware and software and operating time.The status command “s” gives scaled and hardware resolution, position. Here the encoders are configured to emulate singleturn encoders (scaled res turns=1) with 4000 increments/rev.The encoders must be scaled so that the total range is with 0 to 31999.AddressSwitch 1, 211, 122, 233, 344, 455, 566, 677, 788, 899, 9Baud rate Baudrate switch10 Kbit 020 Kbit 150 Kbit 2125 Kbit 3250 Kbit 4500 Kbit 5800 Kbit 61000 Kbit 7400 Kbit 8Error94.5.1 ScalingThe encoder is rescaled by the command “i”.In below example the encoder is set to 100 increments/rev in multiturn mode. This means we can have up to 320 turns within the total range. Rotation direction is clockwise:By typing “s” after the rescaling we can see that the total range is 409600, but since Pluto only has 16-bit arithmetic only the part between 0 and 31999 is usable.4.5.2 Position adjustmentIn below example the actual encoder position is adjusted to 5000.By typing “s” after the rescaling we can see that the position is changed to 5000.If the encoder is turned and “s” is typed again we can see that the position is changed.It is also possible to type “p” (position) to get the actual position. If position is displayed by the status command but not for the “p” command, probably the position is outside range 0-31999.Type designation Variant Interface Article number, ABB RSA 698Multiturn CAN042TLA020070R3700 RSA 698Multiturn, 6mm shaft CAN042TLA020071R7800 RHA 698Multiturn, Hollow shaft CAN042TLA020071R7900 Encoder dataType RSA 698, RHA 698Operating temperature-40°C .. +70°CStorage temperature-30°C .. +70°CIngress protection class IP-67 according to IEC 60529At shaft inlet IP-66 according to IEC 60529Vibration (55 to 2000Hz)< 100 m/s2 according to IEC 60068-2-6Shock (6ms)< 2000 m/s2 according to IEC 60068-2-27Cover material AluminiumCover surface treatment AnodizedWeight Approx. 400gAccuracy and resolutionTotal Resolution25 BitSingle turn resolution13 Bit, 8192 positions per revolutionMultiturn resolution12 Bit, 4096 absolute number of revolutionsAccuracy± ½ LSB4.6.1 Electrical dataPower supply9-36 VdcPolarity protected YesOutput interface CANPlutoNode address Settable via DIP SwitchBaud rate Settable via switch, Max 1MBit/sDefault Baud rate125 kBit/sCode type BinaryProgrammable functions Scaling, PresetCode sequenceCurrent consumption90 mA @ 24VdcMax current consumption150 mA @ 24VdcRSA 698 MultiturnShaft specification Flange specificationShaft typeØ 10round Flange type63, Synchro Axial shaft load50 N Outer diameterø58 mm Radial shaft load60 N Mounting holes 3 x M4 Mech. permissible speed 12000 rpm Flange material Aluminium Shaft material Stainless steelMoment of inertia2,0 x 10-6 kgm2Shaft specificationFlange specificationShaft type Ø6round Flange type 63, Synchro Axial shaft load 50 N Outer diameter ø58 mm Radial shaft load 60 N Mounting holes 3 x M4Mech. permissible speed 12000 rpm Flange materialAluminiumShaft material Stainless steelMoment of inertia1,9 x 10-6 kgm2Shaft specification Flange specificationShaft typeØ 12hs Flange type58,HSAxial shaft load10 N Outer diameterø58 mm Radial shaft load20 N Torque support Stator coupling Mech. permissible speed 6000 rpm Flange material Aluminium Shaft material Stainless steelMoment of inertia4,3 x 10-6 kgm25 PLC Software - Description of function blocksThe safety blocks for reading encoders are located in file “encoder01.fps”.5.1 SafeEncoderFunction block for singleturn encoders generating safe position and speed value out of two absolute encoders.------------ Function ------------------------------The function block reads and evaluates two absolute encoders. Theaverage of the two encoders is calculated and set to the output “Position”.The output ”Speed” is also an average value given in increments/10ms.It is also monitored that the two encoder values do not deviate more thanthe value set by the input “MaxDiff”.If something is wrong the output “OK” is set “0”'. In some applicationthe values “Position” and 'Speed' must be used together with the “OK”output.---------- Description of in- and outputs ------------------- AdrEncoderA: Encoder A node address- AdrEncoderB: Encoder B node address- MaxDiff: Max allowed deviation between the encoders (max 2% ofRange)- Range: Number of increments per revolution- OK: Set when encoders are working OK andthe position values are within the margin set by “MaxDiff”- Position: Position value- Speed: Speed value as increments/10ms- A: Encoder A position. Must not be used in PLC program!- B: Encoder B position. Must not be used in PLC program!NOTE! Position values from single encoders are only availablefor adjustment purposes and must NOT be used for safety.NOTE! When error occurs “Position” = -1, “Speed” = -32768 and the OK output will be reset.Function block for multiturn encoders generating safe position and speed value out of two absolute encoders.------------ Function ------------------------------The function block reads and evaluates two absolute multiturnencoders. The average of the two encoders is calculated and set to theoutput “Position”.The output “Speed” is also an average value given inincrements/10ms.It is also monitored so the two encoder values do not deviate morethan the value set by the input “MaxDiff”.If something is wrong the output “OK” is set “0”. In some applicationthe values “Position” and “Speed” must be used together with the “OK”output.---------- Description of in- and outputs ------------------- AdrEncoderA: Encoder A node address- AdrEncoderB: Encoder B node address- MaxDiff: Max allowed deviation between the encoders(max 2% of IncrPerRev)- IncrPerRev: Number of increments per revolution- OK: Set when encoders are working OK andthe position values are within the margin set by “MaxDiff”- Position: Position value- Speed: Speed value as increments/10ms- A: Encoder A position. Must not be used in PLC program!- B: Encoder B position. Must not be used in PLC program!NOTE! Position values from single encoders are only availablefor adjustment purposes and must NOT be used for safety.NOTE! When error occurs “Position” = -1, “Speed” = -32768 andthe OK output will be reset.Same as SafeEncoderMult but for Pluto with “Instruction set 3” (see Pluto Programming Manual). Can handle double registers.The function block reads and evaluates two absolute multiturnencoders. The average of the two encoders is calculated and set to theoutput “Position”.The output “Speed” is also an average value given in increments/10ms.It is also monitored so the two encoder values do not deviate more thanthe value set by the input “MaxDiff”.If something is wrong the output “OK” is set “0”. In some applicationthe values “Position” and “Speed” must be used together with the “OK”output.---------- Description of in- and outputs ------------------- AdrEncoderA: Encoder A node address- AdrEncoderB: Encoder B node address- MaxDiff: Max allowed deviation between the encoders(max 2% of IncrPerRev)- IncrPerRev: Number of increments per revolution- Range: This value should be set to the total number of increments(IncrPerRev * number of turns). *See example below.- OK: Set when encoders are working OK andthe position values are within the margin set by “MaxDiff”- Position: Position value- Speed: Speed value as increments/10ms- A: Encoder A position. Must not be used in PLC program!- B: Encoder B position. Must not be used in PLC program!*Example: An encoder has a resolution of 1000 increments per revolution (IncrPerRev) and 4096 turns. In this case “Range” should be set to 4096000 and “IncrPerRev” to 1000. In terminal window this can be seen by typing “encoder”, followed by “s”.NOTE! Position values from single encoders are only available for adjustment purposes and mustNOT be used for safety.NOTE! When error occurs “Position” = -1, “Speed” = -2147483648 and the OK output will be reset.5.3 EncoderCamFunction block for electronic cam limit switch.------------ Function ------------------------------The output Q is set when the value in the input register PosRegis within the limits MinPos and MaxPos. The input value is normally Generated by the function block SafeEncoder.NOTE! It is possible to specify a cam which passes throughthe zero position of an encoder. Position<0 is forbidden.Example: If MinPos=3000 and MaxPos=200, Q is setwhen the position is greater than 2999 or less than 201.---------- Description of in- and outputs ------------------- PosReg: Register where the position is stored- MinPos: Min allowed value- MaxPos: Max allowed value5.3.1 EncoderCam_RFunction block for electronic cam limit switch where inputs MinPos and MaxPos also can be registers.FunctionThe output Q is set when the value in the input register PosReg is within the limits MinPos and MaxPos.NOTE! It is possible to specify a cam which passes through the zero positionof an encoder. Position<0 is forbidden.Example: If MinPos=3000 and MaxPos=200, Q is set when the position is greater than 2999 or less than 201.Description of in- and outputs- PosReg: Register for the encoder position.- MinPos: Min/start value. Constant or register- MaxPos: Max/stop value. Constant or register(Only positive values are allowed)5.3.2 EncoderCam32Same as EncoderCam but can handle double registers.Needs “Instruction set 3” (see Pluto Programming Manual).------------ Function ------------------------------The output Q is set when the value in the input register PosRegis within the limits MinPos and MaxPos. The input value is normally Generated by the function block SafeEncoder.NOTE! It is possible to specify a cam which passes throughthe zero position of an encoder. Position<0 is forbidden.Example: If MinPos=3000 and MaxPos=200, Q is setwhen the position is greater than 2999 or less than 201.---------- Description of in- and outputs ------------------- PosReg: Register where the position is stored- MinPos: Min allowed value- MaxPos: Max allowed value。