Omron NT31 NT31C manual PC Setup, Host Model Word # Writing Value Setting

Connecting to the Host’s RS-422A/485 Port Section 5-2

•Connecting to a CVM1/CV-series (-EVj) CPUs

•CV500-CPU01-EV1/CV1000-CPU01-EV1/CV2000-CPU01-EV1

•CVM1-CPU01-EV2/CVM1-CPU11-EV2/CVM1-CPU21-EV2

PC Setup

When connecting to the CVM1/CV series CPU by the NT link (1:1) method, no particular settings are required at the PC Setup.

Setting the Front Switches

I/O port selector switch

RS-232C

RS-422A

@Host link communication method selection (selector switch)

Set this to RS-422A.

@Communication type setting (DIP SW3) Set this switch to ON.

(for communication by NT link)

@Terminator setting (DIP SW6) Set this switch to ON.

(Set terminator ON.)

Connecting to a C-series C200HX/HG/HE(-Z)E or CQM1H

PC Setup Area Settings

Write the PC Setup area (data memory) settings directly from a Programming Device (e.g. CX-Programmer) in accordance with the host model.

Host Model	Word #	Writing Value	Setting
Port A of C200HX/HG/HE(-Z)E*1	DM6555	4000	Use NT link (1:1)
Port 2 of CQM1H*2	DM6550	4000

*1 RS-422A port of the communication board

*1 RS-422A port of the Serial Communications Board

For details on operations relating to the PC Setup area, refer to the manual for the PC you are using.

Setting the DIP Switches on a C200HX/HG/HE(-Z)E Communication Board Set the switches on a C200HX/HG/HE(-Z)E communication board as follows.

Switch 1: Set to 4 (4-wire type, for RS-422A)

Switch 2 : Set to ON for terminator ON (termination resistance applied)

Setting Switches on a CQM1H Serial Communications Board

Set the switches on a CQM1H Serial Communications Board as follows.

Wire selection (WIRE): Set to 4 (4-wire type, for RS-422A)

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