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5-2SectionConnecting to the Host’s RS-422A/485 Port
113
Terminator (TERM): 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).
Using the NT Link (1:N) Method
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.
PC
Series
CPUs with Built-in
RS-422A type
NT Link (1:N) Function
CPU that becomes
connectable by installing a
communication board
Model Name
CS1
series
---
CS1G-CPU42/43/44/45-E(V1)
(*1)
CS1H-CPU63/64/65/66/
67-E(V1)
(*1)
CS1G
CS1H
---
C200HE-CPU32-(Z)E
(*2)
C200HE-CPU42-(Z)E
(*2)
C200HE
(-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-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-CPU51/61
(*3)
CQM1H
*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.