Omron CP1H CPU Operation Manual page 386

Serial Communications
Procedure
Settings at the Polling Unit
1,2,3...
Settings at the Polled Units
1,2,3...
PLC Setup
Settings at the Polling Unit
Item
Serial port Mode: Communications mode
1 or 2
Baud: Baud rate
PC link mode: PLC Link method
Link words: No. of link words
PC Link Unit No.: Max. unit No.
Settings at the Polled Unit
Item
Serial port Mode: Communications mode
1 or 2
Baud: Baud rate
Unit number
352
The Serial PLC Links operate according to the following settings in the PLC
Setup in the Polling Unit and Polled Units.
1. Set the serial communications mode of serial port 1 or 2 to Serial PLC
Links (Polling Unit).
2. Set the link method to the Complete Link Method or Polling Unit Link Meth-
od.
3. Set the number of link words (up to 10 words for each Unit).
4. Set the maximum unit number in the Serial PLC Links (0 to 7).
1. Set the serial communications mode of serial port 1 or 2 to Serial PLC
Links (Polled Unit).
2. Set the unit number of the Serial PLC Link Polled Unit.
PC Link (Master): PLC Link Polling Unit
38,400 bps, 115,200 bps
ALL: Complete link method
Masters: Polling Unit method
1 to 10 words
0 to 7
PC Link (Slave): PLC Link Polled Unit
38,400 bps, 115,200 bps
0 to 7
Note Both serial ports cannot be used for PLC Links at the same time. If both ports
are set for PLC Links (either as polling node or polled node), a PLC Setup set-
ting error (non-fatal error) will occur and the PLC Setup Setting Error Flag
(A40210) will turn ON. If PLC Links is set for one serial port, set the other
serial port to a different mode.
Set value
Set value
Section 6-1
Default Refresh timing
Host Link Every cycle
9,600 bps
ALL
10 words
0 hex
Default Refresh timing
Host Link Every cycle
9,600 bps
0