GE instruction manual P485 Modbus to Profibus Converter User Guide

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COMMUNICATION MODEL

•Update mode: This parameter is used to specify when the command should be sent to the slave. The following modes are possible:

–Cyclically: The command is sent to the slave at the time interval specified in the “Update time” parameter.

–On data change: The command is sent to the slave when the data area connected to this command changes.

–Single shot: The command is sent to the slave once at start-up.

–Change of state on trigger: The command is sent to the slave when the trigger byte value is changed.

•Update time (10 ms): This parameter specifies with what frequency this command will be sent. The unit is milliseconds (ms) and the entered value is multiplied by 10, which means that the shortest time is 10 ms.

RESPONSE PARAMETERS To gain access to these parameters, select a Response in the Navigation window.

•Trigger byte: This parameter disables and enables the trigger functionality for the response. If the “trigger byte” is enabled then the P485 will increase the byte at the “trigger byte address” by one when the P485 receives new data from the Modbus network. This will notify the Profibus master of updated data.

•Trigger byte address: This parameter is used to specify the address in the internal memory buffer where the trigger byte is located. Valid settings range from 0x0002 to 0x00F3.

P485 MODBUS TO PROFIBUS CONVERTER – USER GUIDE

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Contents GE Multilin P485 Modbus to Profibus ConverterPage P485 Modbus to Profibus Converter Table of contentsSoftware Frame Miscellaneous Getting started IntroductionInput and output definition Document conventionsAbout the P485 Modbus to Profibus Converter FeaturesFeatures Mechanical Housing SpecificationsOrdering CommunicationsElectrical installation InstallationQuick install Pin Signal Description Profibus connector pin assignmentsPin Description Configuration cable pin assignments P485 endConfiguration cable PC end Indicators and switches Mechanical installationNumber Description State Status P485 status indicatorsInput/output bytes required Modules Profibus installation procedurePoor performance TroubleshootingOverview Data exchangeMemory Map Address Contents AccessBlocks Protocol configurationData Exchange Introduction Installation procedureSoftware overview Select Configuration Wizard and click on OK Using the EnerVista P485/D485 Setup softwareTypical network arrangement Sub-network data flow Address Command Software Overview P485 Modbus to Profibus Converter User Guide Software Overview Configurator main window Configuration main windowInformation window Function Description Fieldbus configurationP485/D485 configuration P485/D485 configurationParameter Description Range Modbus network configurationSoftware Overview PLC Communication modelP485 scan list Basic settingsMenu NodesCommunication Model P485 Modbus to Profibus Converter User Guide Communication Model Frame editor Frame and command editorsSelect command window Command editorQuery Column Select ‘Add Command’ as described earlierMain window Modbus network monitor Modbus network and node monitorsStart / Stop sub network scanning Node monitor Update OFF Update onCommand Area Control and status registers Advanced functionsCode Name Description Bits Name DescriptionHandshake bits themselves bits 14 Code Error DescriptionFieldbus control system Input/output data during startupMailbox command Advanced fieldbus configurationAdvanced Functions Overview Application exampleType Parameter Address Format Read/write For the MM2, we haveParameter User map data Address Modbus user map setupMM2 meter user map setting System configuration System configurationDB9 pin Description Setup Software Starting Configuration WizardModbus network properties Selecting the SUB-NETWORK PropertiesParameters configured for Pqmii 11 Connect devices to sub-network Connect Devices to the SUB- Network14 Select parameter window Select Parameters for Each Node17 Configuration report Queries 20 Save device file21 Expanding the tree 23 Changing configuration parameters for a query 25 Opening a saved configuration file Profibus network setup Miscellaneous WarrantyRevision history Release Dates10-2 6-3 P485 Modbus to Profibus Converter IndexPower Supply