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I'm trying to read the registries in V130 with a modbus device using RS485 on COM1. I've changed the jumpers accordingly and in the software side, I've configured Com Init, Modbus config & Modbus Scan EX. 

I'm using a Simply Modbus Master simulator to test but for some reason I'm not getting any response from the PLC. Only the Rx values are incrementing when I request to read values but nothing is happening to the Tx numebrs. 

Any help on this would be great. 

Thanks

Bailey

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