E5ZE Temperature Controller Read Protocol

Appendix E

 

 

 

RS422/485 Connections

RS-485

Pin No.

Signal name

Abbreviation

Signal direction

 

 

 

 

1

Disabled (Do not connect.)

 

 

 

 

2

Disabled (Do not connect.)

 

 

 

 

3

Signal ground

SG

 

 

 

 

4

Terminal B (+ side)

B

I/O

 

 

 

 

5

Terminal A (– side)

A

I/O

Serial Communications Board

RS-485: D-sub 9-pin female

Signal

name Pin No.

Turn off the communications switch to disconnect terminating resistance.

Terminating

resistance

240

E5ZE

RS-485: Terminals

Ter- Signal minal name

SN751177N or equivalent

Shielded cable

E5ZE

RS-485: Terminals

Terminating

Shielded cable

 

 

 

Ter-

Signal

resistance

 

minal

name

 

 

 

Terminating

resistance

Note Terminal block pins 1 and 2 cannot be connected. If these blocks are used, operation of the E5ZE may fail.

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Image 195
Omron CQM1H-SCB41 operation manual RS422/485 Connections RS-485, Pin No Signal name Abbreviation Signal direction