Omron NT631C manual Using the High-speed NT Link 1N Method, Connecting CS/CJ-series CPU Units

Connecting to the RS-232C Port at the Host Section 4-1

Using the High-speed NT Link (1:N) Method

*1 Set any value between 0000 and 0009 hex for the baud rate. The same baud rate will be used regardless of the value as long as it is between 0000 and 0009 hex.

Compatible Host Units

The high-speed 1:N NT Link method can be used with version 1 (-V1) and high-speed versions (H) of the CS-series and CJ-series CPU Units. Further- more, the high-speed 1:N NT Link method can be used in earlier versions of CS-series and CJ-series CPU Units by installing the latest version of a Serial Communications Board (CS Series only) or Serial Communications Unit.

Be sure to check the model number of the PLC and Serial Communications Board/Unit before trying to establish the high-speed 1:N NT Link.

The following table shows which CS-series PLCs can be connected to an NT631/NT631C with the high-speed 1:N NT Link.

PLC Series	CPU Units with Built-in NT	CPU Units Connectable with	Connectable to
	Link Function	Communications Board/Unit
CS Series	CS1G-CPU42/43/44/45-EV1(*1)	CS1G-CPU42/43/44/45-E(V1)(*2)	CS1G
	CS1H-CPU63/64/65/66/67-	CS1H-CPU63/64/65/66/67-	CS1H
	EV1(*1)	E(V1)(*2)	CS1D
	CS1G-CPU42H/43H/44H/45H	CS1G-CPU42H/43H/44H/45H(*2)
	CS1H-CPU63H/64H/65H/66H/	CS1H-CPU63H/64H/65H/66H/
	67H	67H(*2)
	CS1D-CPU65H/67H	CS1D-CPU65H/67H(*3)
CJ Series	CJ1G-CPU44/45	CJ1G-CPU44/45(*4)	CJ1G
	CJ1G-CPU42H/43H/44H/45H	CJ1G-CPU42H/43H/44H/45H(*4)	CJ1H
	CJ1H-CPU65H/66H/67H	CJ1H-CPU65H/66H/67H(*4)	CJ1M
	CJ1M-CPU11/12/13/21/22/23
		CJ1M-CPU11/12/13/21/22/23(*4)

*1 The high-speed 1:N NT Link is not supported in a direct connection to the CPU Unit of a CS1-series PLC without the -V1 suffix.

*2 A CS1W-SCB21 or CS1W-SCB41(-V1) Serial Communications Board or CS1W-SCU21(-V1) Serial Communications Unit is required.

*3 A CS1W-SCU21(-V1) Serial Communications Unit is required.

A CS1W-SCB21/41(-V1) Serial Communications Board cannot be used.

*4 One of the following Communications Units is required: CJ1W-SCU21/41(-V1).

Settings at the Host

The Settings required for each Unit are described below.

• Connecting CS/CJ-series CPU Units

CS/CJ-series CPU Unit: CS1G/H-CPU@@-EV1, CS1G/H/D-CPU@@H-E, CJ1G/M-CPU@@-E, CJ1GH-CPU@@H-E

Connect the PT to the CPU Unit’s built-in RS-232C port. Use a CS1W-CN118 Connecting Cable, however, if connecting the PT to the peripheral port of the CPU Unit.

PLC Setup

When connecting to a CS-series CPU Unit, set the following communications conditions for the PLC Setup area, in accordance with the communications port to be used.

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