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14 Serial Communications
CP1E CPU Unit Software User’s Manual(W480)
14-5 Serial PLC Links
14
14-5-2 Flow of Operation
Precautions for Correct UsePrecautions for Correct Use
Both serial ports cannot be used for PLC Links at the same time.
If both serial ports are set for PLC Links (either as polling or polled nodes), a PLC Setup setting
error (nonfatal error) will occur and the PLC Setup Setting Error Flag (A402.10) will turn ON.
14-5-2 Flow of Operation
1
Connect the CP1E CPU Unit and the CP1E or other
CPU Units using RS-232C or RS-422A/485 ports.
2
Set Built-in RS232C Port or Serial Option Port in the
PLC Setup and transfer the PLC Setup from the CX-
Programmer to the CP1E CPU Unit. (Set the serial com-
munications mode to Serial PC Link (Master) or Serial
PC Link (Slave) and set the communications conditions,
link words, and PLC Link method.)
3
14-5-3 PLC Setup
Settings at the Polling Unit
Wiring communications
PLC Setup
Start communications