Mark Renner Posted June 25, 2011 Report Share Posted June 25, 2011 Hi, I have 5 Unitronics v230 Plc's that i want to network and use tcp to communicate modbus back to Labview DSC scada application. Does any one have any ideas on setup of ethernet etc and modbus to achieve this result or example to forward.New to port setups etc. Quote Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted June 27, 2011 MVP 2023 Report Share Posted June 27, 2011 Do some digging on NI's website for the LabView code. Here's the Modbus library: LabView Modbus Libary 1.21 Be sure to read the user comments about a bug in one of the vi's. Here's NI's Modbus introduction: NI Modbus intro Assuming the V230's will be slaves, all you have to do on the Unitronics side is configure the Ethernet port, trigger a Modbus IP configuration block with SB 2, and hang a Modbus IP ScanEX block on the rail. Joe T. Quote Link to comment Share on other sites More sharing options...
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