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Old March 29th, 2014, 09:33 PM   #1
gwgps
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Question Confirmation about XMIT and MSTR for Quantum 113

For Quantum CPU 113:

XMIT - Instruction used solely for Modbus RTU (or similar) and not Modbus Plus
MSTR - Instruction used solely for Modbus Plus

Are the above Modbus-related instructions correct for Quantum?
Because of their function, are the above instructions not interchangeable?
If a serial cable is connected at the Modbus port (not Modbus Plus port) of Quantum 113, XMIT instruction has to be used and not MSTR.

I'm trying to summarize post's title Modicon Modbus Quantum 140 CPU:
http://www.plctalk.net/qanda/showthr...Modbus+140+CPU
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