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Posted: 2025-07-01 01:36 AM
Hello,
When I am trying to connect M221 PLC to Operator Terminal Expert simuliator I am getting misscommunication. However when trying to connect Machine Expert Basic simuliator with Operator Terminal Expert simuliator, communication is OK.
Probably something with variables? Any advice.
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Posted: 2025-07-08 10:13 PM
How did the plc communicate with the HMI? If it is Modbus TCP and your IPs are set correctly it should work. If it is Modbus Serial it should be a bigger problem
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