Omron Programmable Terminals NT31 NT31C Setup Manual page 124

Connecting to the Host's RS-422A/485 Port
Using the NT Link (1:N) Method
Terminator (TERM):
Compatible Host Units
The OMRON PCs that can be connected using the RS-422A/485 type NT link
(1:N) method are the CS1G/H, C200HX/HG/HE(-Z)E, and CQM1H models only.
A Serial Communications Board or a communications board must be installed to
make the connection.
Check the model and series of the PC against the type of CPU or communica-
tions board before making the connections.
The host units that can be connected to the RS-232C port of the NT31/NT31C by
the RS-422A type NT link (1:N) function via a convertor are indicated in the table
below.
CPUs with Built-in
PC
RS-422A type
Series
NT Link (1:N) Function
CS1
---
series
---
---
C series
---
---
*1 The serial CS1W-SCB41-E communication board is required.
*1 A C200HW-COM03-V1 or C200-COM06-V1 communication board is required.
*1 A CQM1H-SCB41 Serial Communication Board is required.
Settings at the Host
C-series C200HX/HG/HE(-Z)E and CQM1H
PC Setup Area Settings
Write the communication conditions directly into the PC Setup area (data
memory) using a Programming Device (e.g. CX-Programmer).
Make the setting indicated in the word shown below.
Set to ON for termination ON.
Serial Communications Board
(Inner Board slot 1)
Terminator Switch (TERM)
Set to ON (right side).
Wire Selection Switch (WIRE)
Set to 4 (right side).
CPU that becomes
connectable by installing a
communication board
CS1G-CPU42/43/44/45-E(V1)
(*1)
CS1H-CPU63/64/65/66/
(*1)
67-E(V1)
C200HE-CPU32-(Z)E
C200HE-CPU42-(Z)E
C200HG-CPU33-(Z)E
C200HG-CPU43-(Z)E
C200HG-CPU53-(Z)E
C200HG-CPU63-(Z)E
C200HX-CPU34-(Z)E
C200HX-CPU44-(Z)E
C200HX-CPU54-(Z)E
C200HX-CPU64-(Z)E
C200HX-CPU65-ZE
C200HX-CPU85-ZE
CQM1H-CPU51/61
Section 5-2
Model Name
CS1G
CS1H
(*2)
C200HE
(*2) (-Z)E
(*2)
(*2)
C200HG (-Z)E
(*2)
(*2)
(*2)
(*2)
(*2)
C200HX
(*2)
(-Z)E
(*2)
(*2)
(*3)
CQM1H
113