Omron NT631C manual Using the NT Link 1N Method, Setting the Switches on an RS-232C Adapter

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

Using the NT Link (1:N) Method

The settings for SW1 and SW2 depend upon the usage of the peripheral port and RS-232C port.

•Connecting PT to peripheral port

•Connecting PT to built-in RS-232C port

(A device that requires non-standard communications settings is connected to the peripheral port.)

SW1: OFF

SW2: ON

•Connecting PT to built-in RS-232C port

(A Programming Console is connected to the peripheral port.)

SW1: OFF

SW2: OFF

Setting the Switches on an RS-232C Adapter

When using a CPM1-CIF01 RS-232C Adapter, set the mode switch as shown in the following diagram.

CPM1-

CIF01

Set the mode setting switch to NT (lower position).

Connecting to CVM1/CV Series (-EV@)

Set the DIP switches on the front panel as follows.

I/O port selection (selector switch)

Set this to RS-232C.

DIP switch setting (SW3)

6
5
4	Set SW3 to use NT Link
3
2	(ON, right side).
1
OFF ON

When using a CVM1/CV-series PLC, CPU Unit execution processing (execu- tion control 2) in the PLC Setup must be set to Simultaneous processing.

Compatible Host Units

The OMRON PLCs that can be connected using the NT link (1:N) method are the CS/CJ-series CPU Units and the C-series C200HX/HG/HE(-Z)E, CQM1H, and SRM1 only. With the CS/CJ-series PLCs, it is possible to connect a 1:N NT Link using a Serial Communications Board (CS Series only) or a Serial Communications Unit.

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