Omron CQM1H-SCB41 Operation Manual page 247

E5@J Temperature Controller Protocol
Connections
The connections for using the E5@J Temperature Controller Protocol are shown below.
RS-232C Connections
Serial Communica-
tions Board
RS-232C port
Note 1. The connection configuration is a one-to-one configuration and the maximum cable length is 15 m.
2. Use shielded twisted-pair cable (AWG28i or greater).
RS422A/485 Connections
Serial Commu-
nications Board
RS-422A/485 port
232
CQM1H
Signal name
Signal ground or common
return line
Send data
Receive data
Serial Communications
Board
RS-232C: D-sub
9-pin female
Signal
Pin
name
No.
Shielded
cable
CQM1H
RS-232C
Abbreviation Signal direction
SG –
SD Output
RD Input
E5AJ
RS-232C:
Terminal Block
MAX232C or
Termi- equivalent
Signal
nal
name
RS-422A/485
RS-422A/485
Up to 32 units can be
connected.
RS-422A/485
Appendix G
E5@J
Pin No.
25, 27
26
28
E5@J
E5@J
E5@J