How to configure SIMATIC STEP7 V5.5 SP4 to read acyclic data from MultiRanger/HydroRanger 200 HMI over SmartLinx PROFIBUS DPV1Application examples Introduction1 Overview2 Planning/configuring3Siemens AGGlobal Services Information Technology Document order number: AG090315Ⓟ 09/2020 Subject to changeCopyright © Siemens AG 2020.All rights reservedLegal informationWarning notice systemThis manual contains notices you have to observe in order to ensure your personal safety, as well as to preventdamage to property. The notices referring to your personal safety are highlighted in the manual by a safety alertsymbol, notices referring only to property damage have no safety alert symbol. 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A notice warning of injury to persons with a safety alert symbol may also include a warning relating toproperty damage.Qualified PersonnelThe product/system described in this documentation may be operated only by personnel qualified for the specifictask in accordance with the relevant documentation, in particular its warning notices and safety instructions.Qualified personnel are those who, based on their training and experience, are capable of identifying risks andavoiding potential hazards when working with these products/systems.Proper use of Siemens productsNote the following:WARNINGSiemens products may only be used for the applications described in the catalog and in the relevant technicaldocumentation. If products and components from other manufacturers are used, these must be recommendedor approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation andmaintenance are required to ensure that the products operate safely and without any problems. The permissibleambient conditions must be complied with. The information in the relevant documentation must be observed. TrademarksAll names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publicationmay be trademarks whose use by third parties for their own purposes could violate the rights of the owner. Disclaimer of LiabilityWe have reviewed the contents of this publication to ensure consistency with the hardware and softwaredescribed. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, theinformation in this publication is reviewed regularly and any necessary corrections are included in subsequenteditions.Table of contents1 Introduction (4)1.1 Objective (4)1.2 Equipment (4)1.3 Disclaimer (4)2 Overview (5)3 Planning/configuring (6)3.1 Modifying GSD to perform acyclic communication (6)3.2 Slot index table (6)3.3 Adding MultiRanger/HydroRanger 200 HMI to the hardware configuration (7)3.4 Step7 example program (8)3.5 Slot index table (10)3.6 How to test using the VAT table (14)1.1ObjectiveThe objective of this application guide is to help the user become familiar with the stepsrequired to use acyclic communications through a SmartLinx PROFIBUS DPV1communications module to read/write data to MultiRanger/HydroRanger 200 HMI.1.2EquipmentNoteA complete code example is available for the Siemens SIMATIC S7300 PLC.This guide is an addition to the application guide Step7 V5.5 SP4 MR_HR _HMI. Please usethe Step7 V5.5 SP4 MR_HR _HMI application guide to setup the cyclic data before using thisguide.This guide assumes the user is familiar with Step V5.5 SP4.1.3DisclaimerNoteWhile every effort is made to verify the following information, no warranty of accuracy orusability is expressed or implied.All names identified by ® are registered trademarks of Siemens AG. The remaining trademarksin this publication may be trademarks whose use by third parties for their own purposescould violate the rights of the owner.This application guide is an addition to the operating instructions forMultiRanger/HydroRanger 200 HMI. It focuses on the setup and configuration of the S7300, using specific functions in the PLC, SFC58 (WR_REC), and SFC59 (RD_REC), to access the MultiRanger/HydroRanger 200 HMI parameters.Acyclic communication through PROFIBUS DPV1 is designed to allow read/write access to the PROFIBUS slave device. During normal operation of a PROFIBUS network, data is exchanged cyclically between the master and slave devices. If an acyclic request occurs, the Class I master will pass the request to the slave device. After the cyclic data has been read from the slaves, the acyclic request is sent to the slave. The slave device will then process the request and respond in the current scan or the next scan. Acyclic requests are executed periodically because parameter data is not required as frequently as the cyclic data.The example below will show you how to read/write the quick start parameters in MultiRanger/HydroRanger 200 HMI. The PLC code example uses a timer interrupt, OB35 (TIMER_INTERUPT), to indirectly call SFC58 and SFC59. In this example, OB35 is executed every 100 ms.Planning/configuring 3 3.1Modifying GSD to perform acyclic communication1.To allow acyclic communications through a Class I master, you must change the C1 and C2response timeout.2.Open the GSD file, HMSB1813.gsd, in Notepad and change the C1 and C2 timeout as shownbelow.Save the file.Use this GSD file to configure hardware in Step7.3.2Slot index tableThe parameters, or diagnostic information, in the PROFIBUS slave device are arranged in astandard way and are accessed through the slot index table. The table defines whereinformation is stored in the device and references the slot and index for a parameter ordiagnostic.3.3 Adding MultiRanger/HydroRanger 200 HMI to the hardware configuration 3.3Adding MultiRanger/HydroRanger 200 HMI to the hardwareconfigurationTo add the MultiRanger/HydroRanger 200 HMI to the hardware configuration, you will needto add the device to the network and define the number of modules required. A moduleholds a group of parameters or diagnostic information for the device. The total number ofmodules must match the number of modules in the slot index table. The number of bytes ineach module must add up to the total number of bytes used for cyclic data exchange. For theMultiRanger/HydroRanger 200 HMI, this is 19 words of input.In the Step7 hardware configuration you will see that 6 modules have been added forMultiRanger/HydroRanger 200 HMI.Slot/Module Description1 Parameters for channel 12 Parameters for channel 23 Global parameters4 Relays5 Device6 Echo profile (internal use)NoteThe number of modules used in the cyclic data configuration is related to the number of slotsused for acyclic communications. Therefore, in order to access all 6 acyclic slots, 6 modulesmust be used in the hardware configuration.3.4 Step7 example program3.4Step7 example programThis example will show you how to read/write the quick start parameters for theMultiRanger/HydroRanger 200 HMI by referencing the index from the slot index table. In theslot index table, the quick start parameters for point 1 start at slot 1, index 50.1.In step7 V13, add OB35.2.Inside OB35, insert a network for SFC58 and SFC59. OB35 will execute every 100 ms andcall SFC58 and SFC59.3.Read the quick start parameters from the MultiRanger/HydroRanger 200 HMI and move thedata to DB1.If M100.1 is closed, SFC59 is called and will write the parameters from DB1 (Quick start 2) tothe MultiRanger/HydroRanger 200 HMI.The complete code for OB35 is shown below:3.4 Step7 example program SFC59 (RD_REC) parametersREQ Start the requestIOID Module typeLADDR Address of the module1: 256 (0 x 100)RECNUM Index: 50 (0 x 32)P#DB1.DBX0.0 Data block holding the result of the parameter readBUSY Function statusRET_VAL Result of the functionSFC58 (WR_REC) parametersSome additional logic is used to disable the RD_REC while the RD_WRI is being executed. REQ Start the requestIOID Module typeLADDR Address of the module 1: 256 (0x100)RECNUM Index: 50 (0x32)P#DB1.DBX12.0 Data block where data will be read from and sent to MultiRanger/HydroRanger200 HMIBUSY Function statusRET_VAL Result of the function3.5 Slot index tableEnabling M100.0 will initiate a RD_REC if a RD_WRI is not being executed.Enabling M100.2 will initiate a RD_WRI and disable a RD_REC while the RD_WRI is beingperformed. When the WR_REC is complete, M100.2 will be cleared to disable the WR_REC call.Refer to the slot index table below for the data type for each parameter. If you are writingto the MultiRanger/HydroRanger 200 HMI, enter the data into the data structure inDB1.DBX12.0 (Quick start 2).3.5Slot index table3.5 Slot index table3.5 Slot index table3.5 Slot index table3.6 How to test using the VAT table3.6How to test using the VAT table1.Create a VAT table to test the read/write function.e M100.2 to enable the WR_REC and send the Quick start 2 to theMultiRanger/HydroRanger 200.。
