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4-1SectionConnecting to the RS-232C Port at the Host
72
Using the NT Link (1:N) Method
Compatible Host Units
The OMRON PCs that can be connected using the NT link (1:N) method are the
CS1-series CS1G/H and the C-series C200HX/HG/HE(-Z)E, CQM1H, and
SRM1 only. With the CS1-series PCs, it is possible to connect a 1:N NT Link us-
ing a CS1W-SCU21 Serial Communications Unit.
Check the model and series of the PC as well as the model of Serial Commu-
nications Board or Unit being used before making the connections.
The host units that can be connected to the NT31/NT31C by the NT link (1:N)
method using the RS-232C ports of both units are indicated in the table below.
PC Series
CPUs with Built-in
NT Link Function
CPUs Connectable with
Communications Board
or Unit
(*1)
Connectable
to
CS1 series
CS1G-CPU42/43/44/
45-EV1
CS1H-CPU63/64/65/
66/67-EV1
CS1G-CPU42/43/44/
45-EV1
CS1H-CPU63/64/65/
66/67-EV1
CS1G
CS1H
C200HE-CPU42-(Z)E
C200HE-CPU32-(Z)E
(*2)
C200HE-CPU42-(Z)E
(*2)
C200HE
(-Z)E
C200HG-CPU43-(Z)E
C200HG-CPU63-(Z)E
C200HG-CPU33-(Z)E
(*2)
C200HG-CPU43-(Z)E
(*2)
C200HG-CPU53-(Z)E
(*2)
C200HG-CPU63-(Z)E
(*2)
C200HG
(-Z)E
C series
C200HX-CPU44-(Z)E
C200HX-CPU64-(Z)E
C200HX-CPU65-ZE
C200HX-CPU85-ZE
C200HX-CPU34-(Z)E
(*2)
C200HX-CPU44-(Z)E
(*2)
C200HX-CPU54-(Z)E
(*2)
C200HX-CPU64-(Z)E
(*2)
C200HX-CPU65-ZE
(*2)
C200HX-CPU85-ZE
(*2)
C200HX
(-Z)E
---
CQM1H-CPU51
(*3)
CQM1H-CPU61
(*3)
CQM1H
CompoBus/S
Master
Control Unit
SRM1-C02-V2 --- SRM1
*1 A CS1W-SCB21 or CS1W-SCB41 Serial Communication Board or
CS1W-SCU21 Serial Communications Unit is required.
*2 One of the following Communication Boards is required:
C200HW-COM02/COM04/COM05/COM06 (-EV1)
*3 A CQM1H-SCB41 Serial Communication Board is required.
Reference: The -V1 versions of CS1-series PCs support the high-speed 1:N NT Link as well
as the standard 1:N NT Link. Furthermore, the high-speed 1:N NT Link can be
used in earlier versions of CS1-series PCs by installing a new version of Serial
Communications Board or Unit. For details, refer to Using the High-speed NT
Link (1:N) Method (page 75).
Settings at the Host
The Settings required for each Unit are described below.
• Connecting a C-series C200HX/HG/HE(-Z)E, CQM1H, or SRM1
PC Setup Area Settings
Write the PC Setup area (data memory) settings directly from a Programming