Connecting to the Host’s RS-232C Port

Section 5-1

Connection between NT631/NT631C Units (RS- 485)

The relay terminal board is not included in the figure below. Insert a relay ter- minal board so as to achieve the wiring configuration indicated below.

NT631/NT631C

NT-AL001

Host

 

 

RS-485

 

 

 

 

 

:

 

 

 

 

 

 

 

NT631/NT631C side

 

NT631/NT631C side

 

RDA

 

Abbreviation Short-circuit tool

Abbreviation

 

RDA

 

 

:

RDA (-)

 

 

 

RDA (-)

 

 

 

 

 

 

 

TRM

 

TRM

 

TRM

 

TRM

RDB

RS-422A/

RDB (+)

 

RDB (+)

RS-422A/

RDB

 

485

485

 

 

SDA (-)

terminal

 

terminal

SDA (-)

 

 

 

 

block

 

SDA

block

 

 

 

SDA

SDB (+)

 

SDB (+)

 

 

 

 

SDB

 

RSA (-)

 

RSA (-)

 

SDB

 

RSB (+)

 

 

 

RSA

 

 

RSB (+)

 

RSA

 

Functional

 

Functional

 

 

 

ground

Shielding wire

ground

 

 

RSB

 

 

 

 

RSB

 

 

 

 

 

24V

 

 

 

 

 

24V

+DC

 

 

 

 

+DC

*Short TRM and RDA terminals of the NT631/NT631C at the end of the RS- 485 cable (* marked in the above figure) using the short-circuit tool sup- plied with the NT631/NT631C.

For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS- 422A/485 Cables on page 125.

Connecting an NT-AL001 and Host

NT631/NT631C

NT-AL001

 

 

 

Host

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RS-232C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wiring when connecting a CS-series Serial Communications Board, CS/

CJ-series Serial Communications Unit, CQM1H Serial Communications

Board, or C-series C200HX/HG/HE(-Z)E Communications Board

Applicable Units:

CS1W-SCU21(-V1)

CJ1W-SCU21(-V1)/CJ1W-SCU41(-V1)

CS1G-CPU42/43/44/45-E(V1)

CS1H-CPU63/64/65/66/67-E(V1)

CS1G-CPU42H/43H/44H/45H

CS1H-CPU63H/64H/65H/66H/67H

CS1D-CPU65H/67H (See note.)

89

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Omron manual Connection between NT631/NT631C Units RS, Connecting an NT-AL001 and Host