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from the Automation List department...
Modbus Error: Bad checksum on code 120
Continuous process industries, DCS questions. topic
Posted by Sebastian on 19 October, 2007 - 4:50 pm
I have the problem: bad checksum on response modbus error code 120.

Hardware:
PLC 984-130

Comunication RS-232 9 pin

Computer:
486DX
system: DOS 6.2 + NC

Program: LMODSOFT 2.0

I have the problem: bad checksum on response modbus error code 120.

Very very please help.
Thanks awfully!
Sebastian
siscom@onet.pl

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