Omron G9SP Series Manual page 15

Communications cable
The suited cable is different according to the combination of component. Please
produce the cable of the following connecting wires when connecting with a
Mitsubishi Electric Standard PLC Q series (QJ71C24N-R2).
G9SP-series
RS-232C Serial Communications
Board
Connector Signal
FG
SD
D-Sub
RD
male
RS
9-pin
CS
5V
DR
ER
SG
Sample Ladder Programming for Mitsubishi Electric PLC Q series
This section provides an example of programming to monitor Safety Input terminal
data of a G9SP-series Controller from a Mitsubishi Electric Standard PLC Q
series.
RS-232C Serial Communications Sequence
The G9SP-series Controller returns a response to the command sent from the
Standard PLC.
Receive
after 300 ms
Receive End
Receive
after 300 ms
Receive End
2 - 2
Pin No.
1
2
3
4
5
6
7
8
9
Standard PLC
Initialization
Send processing
Sent command
processing
Reception response
Receive processing
Send processing
Sent command
processing
Reception response
Receive processing
Send processing
RS-232C Serial Communications
Mitsubishi Electric Q series
serial communication module
Pin No. Signal Connector
1 CD
2 RD
D-Sub
3 SD
male
4 ER
9-pin
5 SG
6 DR
7 RS
8 CS
9 RI
G9SP-series Controller
Send/receive processing
Send/receive processing
2
2-5