sgull Posted June 30, 2014 Report Share Posted June 30, 2014 Hi Folks I have a program installed on a V1040 on a site that has an OMRON PLC connected to a SCADA system. The customer wants to take some information back to the scada via the Omrom PLC. The Omron programmer is very protective of his set up so I cannot see what he has done. He claims to have set up his device properly to read the information through MODBUS using a 485 wiring setup. The communication is not working and I would like to confirm the following. On the V1040 I need to set up a COM INIT block to setup the port to match the settings on the Omron PLC triggered by a power up bit. On the V1040 I need to set up a MODBUS Config block to give the modbus ID again triggered by a power up bit. On the V1040 I need to set up a SCAN EX block which is on when not in power up. I have wired with 2 wire 485 with termination at both ends. Is this all I need to do to make the information available to the PLC. Regards Denis Quote Link to comment Share on other sites More sharing options...
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