K3Tj Intelligent Signal Processor Protocol

 

Appendix I

 

 

RS-485

 

 

 

 

 

 

 

 

 

 

 

 

 

Signal name

Abbreviation

Signal direction

Terminal

 

 

 

 

 

 

 

 

 

 

Inverting output

Input or output

19

 

 

 

 

 

 

 

 

 

 

Non-inverting output

+

Input or output

18

 

Serial Communications

Board

RS-485: D-sub 9-pin female

Signal Pin

Name No.

Shielded cable

Intelligent Signal Processor

SN751177N or

Turn ON the terminal block switch for

equivalent

terminators only.

 

 

 

RS-485:

Terminal

 

Terminal block

block SW

 

 

 

Termi-Signal nal. Name

Intelligent Signal Processor

Unit designated as terminator.

RS-485:

Terminal block

Termi-Signal

Terminal block SW ON

nal. Name

The terminal block switch is turned ON.

Shielded cable

Note 1. The connection configuration is a one-to-one or a 1-to-N configuration. For 1-to-N connections, up to 32 units including the Serial Communications Board can be connected.

2.The maximum cable length is 500 m. Use shielded twisted-pair cables (AWG28i or greater).

3.Connect terminating resistance at both ends of the transmission path.

4.Turn the terminal block switch ON at the terminators.

5.Turn the terminal block switches OFF for units that are not terminators.

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Omron CQM1H-SCB41 operation manual Signal name Abbreviation Signal direction Terminal