You answered a question 2 years ago that I need help with
If you actually receive this, I would really appreciate your help.
PLC reading from a holding register I am currently working on establishing a modbus TCP/IP connection between a PC (Master) and PLC(slave). I am currently not sure how the plc actually reads the holding register the PC writes to. How do i basically code it to read the holding register in structured text. The PLC I am using is a ABB AC500 PM554-ETH
PLC reading from a holding register I am currently working on establishing a modbus TCP/IP connection between a PC (Master) and PLC(slave). I am currently not sure how the plc actually reads the holding register the PC writes to. How do i basically code it to read the holding register in structured text. The PLC I am using is a ABB AC500 PM554-ETH
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