Omron CQM1H-SCB41 Operation Manual page 207

E5ZE Temperature Controller Read Protocol
• RS-422A
Terminating
resistance
Terminating
resistance
192
Pin No. Signal name
1 Receive data B
2 Receive data A
3 Signal ground
4 Send data B
5 Send data A
Turn off the communications switch
Serial Communications
to disconnect terminating resistance.
Board
E5ZE
RS-422A: D-sub
9-pin female
RS-422A:
Terminals
Signal Pin No.
name
Ter-
minal
Shielded cable
Shielded cable
Abbreviation
RDB
RDA
SG
SDB
SDA
Terminating
resistance
Signal
name
Terminating
resistance
Terminal
Terminating
block
resistance
Ter- Signal
minal name
240
Terminating
resistance
Appendix E
Signal
direction
Input
Input
–
Output
Output
SN751177N or
equivalent