Omron CPM2C

141
Wiring and Connections Section 3-4
3-4-9 RS-422 Port Connection
When using the RS-422/RS-232C Adapter Unit (CPM2C-CIF11) in a Host
Link connection (1:N), wire the RS-422 port as shown below.
Note Turn ON the terminating resistance in the last Unit for stable communications.
Host
RS-232C
B500-AL004 CPM2C-CIF11
RS-422
CPM2C-CIF11
NT-AL001
FG 7
3
6
1
9
5
SG
RDA
RDB
SDA
SDB
1
2
3
4
5
RDA
RDB
SDA
SDB
NC
1
2
3
4
5
RDA
RDB
SDA
SDB
NC
Host
RS-232C
CPM2C-CIF11
RS-422
CPM2C-CIF11
FG
4
3
6
5
7
8
SG
RDA
RDB
CSB
CSA
1
2
3
4
5
RDA
RDB
SDA
SDB
NC
1
2
3
4
5
RDA
RDB
SDA
SDB
NC
1
2
SDA
SDB