Omron CP1E-E14SDR-A User Manual page 257

Appendices
Modbus-RTU Easy Master Function
• Communications mode: Modbus-RTU Easy Master
N/NA -type CPU Unit
CP1W-CIF11/12
RS-422A/485 Option Board
N S1-type CPU Unit
Built-in RS-485 Port
Serial PLC Links
• Communications mode: Serial PLC Link (Master) or Serial PLC Link (Slave)
Connection with RS-232C Ports
RS-232C connection is also possible when using a Serial PLC Link to connect two CP1E N/NA
type CPU Units.
CP1E N/NA (S)-type CPU Unit
Built-in RS-232C Port or RS-232C
Option Board
Signal
FG
SD
R
RD
S
RS
2
CS
3
2
5V
C
DR*
ER*
SG
* DR and ER signals are not supported by the N
A-36
CP1W-CIF11/12
RS485
50m max.
2-wire
Built-in RS-485 Port
RS485
FG
50m max.
Pin
1
2
3
4
5
6
7
8
9
3G3MV
Signal
Control circuit
terminal block
(communications
terminals)
3G3MV
Signal
Control circuit
terminal block
(communications
terminals)
CP1E N/NA (S)-type CPU Unit
Built-in RS-232C Port or RS-232C
Option Board
Pin Signal
FG
1
SD
2
R
3 RD
S
4 RS
2
5 CS
3
2
6 5V
C
7 DR*
8 ER*
SG
9
S(1)-type CPU Unit.
CP1E CPU Unit Hardware User's Manual(W479)
(S )-