5-2 Connecting to the Host Using Controller Link 
5-2  Connecting to the Host Using Controller Link 
This section explains the method for connecting to the host using a Controller Link Interface 
Unit. 
5-2-1  What Is a Controller Link Network? 
A Controller Link Network is an FA Network that can send and receive large data packets 
flexibly and easily among the OMRON C200HX/HG/HE PLC Programmable Terminal (PTs), 
SYSMAC CS-series PLCs, CJ-series PLCs, CQM1H-series PLCs, C200HX/HG/HE PLCs, 
CVM1/CV-series PLCs, IBM PC/AT or compatible computers, and NS-series PTs. The Con-
troller Link supports data links that enable data sharing and a message service that enables 
sending data and receiving data when required. Data link areas can be freely set to create a 
flexible data link system and effectively use data areas. 
The network is connected using shielded twisted-pair cable or optical fiber cable. In addition, 
the Controller Link Network can transfer large quantities of data at high speed, so that it is 
possible to construct a wide-area network easily that supports from low-level systems to high. 
For details on data links and message service, refer to the Controller Link Support Board Op-
eration Manual (W307), Controller Link Support Board for PCI Bus Operation Manual (W383), 
and the Controller Link Unit Operation Manual (W309). 
 
Note: An optical fiber cable is not available for NS-series PTs. 
 
 
  
  
PLC, SYSMAC 
CJ Series 
CJ1W-CLK21 
Controller Link Unit 
PLC, SYSMAC 
CQM1H Series 
CQ1H-CLK21 
Controller Link Unit 
PLC, SYSMAC 
CS Series 
CS1W-CLK21 
Controller Link Unit
PLC, SYSMAC 
C200HX/HG/HE 
C200HW-CLK21 
Controller Link Unit
PLC, SYSMAC 
CVM1/CV Series
CVM1-CLK21 
Controller  
Link Unit 
NS-CLK21 
Controller Link 
Interface Unit 
IBM PC/AT or 
compatible 
FC98 personal 
computer 
Personal computer 
3G8F5-CLK21  
Controller Link  
Support Board 
3G8F6-CLK21 
Controller Link 
Support Board
3G8F7-CLK21 
Controller Link  
Support Board 
NS Series 
NS12-TS
@ 
NT10-TV@ 
 
To connect the PT to the Controller Link, it is necessary to install a Controller Link Interface 
Unit on the PT. Refer to 3-8 Installing the Controller Link Interface Unit for the procedure for 
installing and wire the Controller Link Interface Unit. 
 
When communicating by Controller Link, the network number, node number, routing tables, 
and data link tables must be set. Use the CX-Designer to set the settings. For details, refer to 
System Settings and Project Properties in the CX-Designer’s Online Help. 
Required Devices 
To construct a Controller Link Network, the devices described in the following table are re-
quired. 
5-15