9 
< I/O Units and CPU Bus Units> 
C200H-O□□□ 
C200H-M□□□ 
C200H-O□□□ 
C200H-M□□□ 
or 
CS1W-I□□□ 
CS1W-O□□□ 
CS1W-M□□□ 
C200H-series Basic I/O Units can be used 
with CS1-series CPU Units.   
Refer to Appendix E. Table of Input/Output 
Units for CS1-series Basic I/O Units 
corresponding to C200H-series Basic I/O 
Units. 
To facilitate maintenance, we recommend 
you to use CS-series Basic I/O Units 
or 
CS1W-□□□□ 
C200H-series Special I/O Units can be used 
with CS1-series CPU Units.  However, there 
are some remarks to be followed. 
To improve the system performance and to 
facilitate maintenance, we recommend you 
to use the CS-series Special I/O Units 
Coaxial: 
C200H-SLK21-V1 
C200HS-SLK22 
C200HW-SLK23/24 
Optical: 
C200H-SLK11 
C200HS-SLK12 
C200HW-SLK13/14 
Coaxial: CS1W-SLK21 
Optical: CS1W-SLK11 
or 
[Controller Link] 
Wired: CS1W-CLK23 
Optical: CS1W-CLK13/53 
C200HW-SLK□□ cannot be used with the 
CS1-series CPU Unit. 
Refer to the SYSMAC CS1W-SLK11/21 
SYSMAC LINK Units OPERATION MANUAL 
(Cat. No. W367) for details about SYSMAC 
LINK. 
We recommend you to use Controller Link 
instead. 
Refer to the Controller Link Units Operation 
Manual (Cat. No. W309) and Optical Ring 
Controller Link Units Operation Manual (Cat. 
C200H-SNT31 
C200HS-SNT32 
None 
[Controller Link] 
Wired: CS1W-CLK23 
Optical: CS1W-CLK13/53 
SYSMAC NET cannot be used with the 
CS1-series CPU Unit. 
We recommend you to use Controller Link 
instead. 
Refer to the Controller Link Units Operation 
Manual (Cat. No. W309) and Optical Ring 
Controller Link Units Operation Manual (Cat. 
C200H-series Host Link Units cannot be 
used with the CS1-series CPU Unit. 
Refer to the SYSMAC CS/CJ Series Serial 
Communications Boards/Units OPERATION 
MANUAL (Cat. No. W336) for details. 
 
CS1W-SCU21-V1 
The CS1 Series does not have an 
Optical-type Serial Communications 
Board/Unit. Use the wired type instead or 
use an external optical link module. 
CS1W-SCB21-V1 
CS1W-SCB41-V1 
Host Link port built in the 
Use one of the left CS1-series Units/Boards.   
CS1W-SCU31-V1 
CS1W-SCB41-V1 
Use one of the left CS1-series Units/Boards.   
C200H-LK401 
C200H-LK401 
 
[Controller Link] 
Wired: CS1W-CLK23 
Optical: CS1W-CLK13/53 
The PC Link Unit can be used with the 
CS1-series CPU Unit. However, the Link 
Area allocation must be changed.   
We recommend you to use Controller Link 
instead. 
Refer to the Controller Link Units Operation 
Manual (Cat. No. W309) and Optical Ring 
Controller Link Units Operation Manual (Cat.