Omron SYSMAC CP Series User Manual page 308

14 Serial Communications
14-5-4 Operating Specifications
Serial PLC Links can be used for all the serial communication ports for CP2E CPU Units. However,
three serial ports cannot be used simultaneously for Serial PLC Links.
Item
Applicable PLCs
Baud rate
Applicable serial ports
Connection method
Words allocated in CIO Area
Maximum number of Units
Link methods (data refresh
methods)
Data Refresh Methods
The following two methods can be used to refresh data.
• Complete link method
• Polling Unit link method
14-30
CP2E, CP1H, CP1L, CP1E, CJ2M
38,400 bps, 115,200 bps
Built-in RS-232C ports, built-in RS-485 ports or serial option ports
If more than two ports are set for Serial PLC Links (either as polling node or
polled node), a PLC Setup setting error (nonfatal error) will occur and the
PLC Setup Setting Error Flag (A402.10) will turn ON.
RS-422A/485 or RS-232C connection via RS-422A/485 Option Board, built-
in RS-485 port or RS-232C port.
Serial PLC Link Words: CIO 200 to CIO 289 (Up to 10 words can be
allocated for each CPU Unit.)
9 Units max., comprising 1 Polling Unit and 8 Polled Units.
Complete link method or Polling Unit link method
Specifications
CP2E CPU Unit Software User's Manual(W614)