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Hello,
I have a PLC which is communicating on Modbus RS232 with a HMI panel. The communication is ok, I can control the PLC from HMI. The issue is when i press a push button which is a digital input in plc, the communication with the hmi is lost.
The digital input is not affecting in software the communication. Actually and old hmi is working there with the same program without issues, but i want to change it with a new one.
This is happening only for that button. What issue can be?
Thank you
I have a PLC which is communicating on Modbus RS232 with a HMI panel. The communication is ok, I can control the PLC from HMI. The issue is when i press a push button which is a digital input in plc, the communication with the hmi is lost.
The digital input is not affecting in software the communication. Actually and old hmi is working there with the same program without issues, but i want to change it with a new one.
This is happening only for that button. What issue can be?
Thank you