CM577 Modbus Communication
I am using cm577 module with pm 583 eth plc.CM 577 communicate with Emerson DP transmitter via Modbus TCP/IP. i make the program as per ABB documents using ETH_MOD_MAST function .i am using function code 4. i got done bit and no error, but i am not getting any value. Also i test with CM577 to Modbus poll and Transmitter to Modbus Poll its working fine with function code 4.
But CM577 To transmitter it’s not working.
What could be the reason and solution for it? Plz help.
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