How to connect PP874 to Ac500 PLC through serial Port?
Greetings
I need to display some variable statues located on an AC500 PLC on PP874 Panel
the connection shall be done through the PLC PM554 serial port
what do I need to do as a declaration on the PLC ?
what do I need to do as a declaration on the PP874 ?
is the used cable different from the standard RS232?
regards
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1
If you have PM554-eth then you can use ModbusTCP;
if you have PM554-t then you can use COM1 port to communicate via RS485 interface
PM554-R do not have RS232.
For communication with modbus TCP or RTU you must declare variables in %M area of PM554
Answered 5 years ago
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