K3Tj Intelligent Signal Processor Protocol

Appendix I

 

 

 

RS-422A/485 Connections

CQM1H

Serial Communica-

tions BoardK3Tj RS-422A/485 port

K3Tj

Up to 32 units can be connected

K3Tj

RS-422A

Signal name

Abbreviation

Signal direction

Pin No.

 

 

 

 

Send data A

SDA

Output

9

 

 

 

 

Send data B

SDB

Output

5

 

 

 

 

Receive data A

RDA

Output

6

 

 

 

 

Receive data B

RDB

Input

1

 

 

 

 

Signal ground

SG

3

 

 

 

 

Protective ground

FG

7

Serial

Communications

Intelligent Sig-

 

SN751177N or

Board

RS-422A: D-sub

nal Processor

Pin

 

9-pin female

RS-422A:

No.

equivalent

Terminating

 

 

 

 

 

 

 

Signal

Pin

Terminal block

Terminal block SW

 

resistance

Name

No.

Termi- Signal

 

 

 

 

 

 

nal. Name

Terminating resistance (terminator)

Shielded

cable Terminating resistance (approx. 220 ) is connected via the terminal block switch.

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Omron CQM1H-SCB41 operation manual K3T j Intelligent Signal Processor Protocol