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Check connection between M241 and generic modbus TCP slave
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How do you set up the communication? Via FBs (Read_var/Write_Var) or via IO Scanner? If you use the FBs you should able to see the status of the FBs. Otherwise you could check the communication via integrated system variables which you could find in the online help.
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Hello,
If you are using IO scanner, for ModbusTCP, there is available Healthbit for each channel. If TRUE, channel is running and exchanging data.
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