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5-1
Section
Connecting to the Host’s RS-422A/485 Port
80
Using the 1:N NT Link Method
Compatible Host Units
The OMRON PCs that can be connected using the RS-422A/485 1:N NT Link
are the CS-series (CS1G/H and CS1G/H-H), CJ-series CJ1G, C200HX/HG/
HE(-Z)E, and CQM1H models only. A Serial Communications Board/Unit or a
Serial Communications Board must be installed to make the connection.
Check the model and series of the PC against the CPU Unit model or Serial
Communications Board before making the connections.
The Units that can be connected as hosts to the NT21 by the 1:N NT Link method
using a RS-422A/485 port are listed in the following table.
PC Series
CPU Units with
Built-in 1:N NT
Link Function
CPU Units connectable through a
Serial Communications Board
Model
CS Series
---
CS1G-CPU42/43/44/45-E(V1)
(*1)
CS1H-CPU63/64/65/66/67-E(V1)
(*1)
CS1G-CPU42H/43H/44H/45H
(*1)
CS1H-CPU63H/64H/65H/66H/67H
(*1)
CS1G
CS1H
CS1G-H
CS1H-H
CJ Series
---
CJ1J-CPU44/45
(*2)
CJ1G
---
C200HE-CPU32-(Z)E
(*3)
C200HE-CPU42-(Z)E
(*3)
C200HE
(-Z)E
---
C200HG-CPU33-(Z)E
(*3)
C200HG-CPU43-(Z)E
(*3)
C200HG-CPU53-(Z)E
(*3)
C200HG-CPU63-(Z)E
(*3)
C200HG
(-Z)E
C Series
---
C200HX-CPU34-(Z)E
(*3)
C200HX-CPU44-(Z)E
(*3)
C200HX-CPU54-(Z)E
(*3)
C200HX-CPU64-(Z)E
(*3)
C200HX-CPU65-ZE
(*3)
C200HX-CPU85-ZE
(*3)
C200HX
(-Z)E
---
CQM1H-CPU51/61
(*4)
CQM1H
*1 A CS1W-SCB41-E Serial Communications Board is required.
*2 A CJ1W-SCU41 Serial Communications Unit is required.
*3 A C200HW-COM03-V1 or C200HW-COM06-V1 Serial Communications Board is
required.
*4 A CQM1H-SCB41 Serial Communications Board is required.
Settings at the Host
Connecting to a CJ-series Serial Communications Unit
CJ-series: CJ1W-SCU41 (Port 1 is an RS-422A/485 port.)
Setting the Front Switches
Set the unit number of the Serial Communications Unit with the rotary switch on
the front of the Unit. Set the unit number with a flat blade screwdriver. Also, set
the communications mode switch to select 2-wire (RS-485) or 4-wire (RS-422A)