Omron SYSMAC CS1W-CLK11 Operation Manual page 21

Overview
Message Service
Twisted-pair Cable or Optical Fiber Cable Connection
Compatible with Different Node Configurations
Flexible Inter-network Connections
function enables users to receive only the required data, thereby increasing
data link efficiency.
The message service can send and receive up to 2,012 bytes of data (includ-
ing the FINS header), allowing high volumes of data to be sent and received
without having to split it up.
The Controller Link Units can be connected to the network using either
shielded twisted-pair cables or optical fiber cables. Select the system that
suits your application.
Features of Twisted-pair Cable
Twisted-pair cable is easy to connect and maintain. The cable can be pro-
cessed much more easily than coaxial or optical cable, thereby reducing the
cost of tools and assembly time.
Connections are made to a terminal block on the Controller Link Unit and to a
special connector on the Controller Link Support Board for easy system
assembly and modification.
The network is equipped with the required terminating resistance built into the
Units allowing the terminating resistance to be easily set at both ends of the
network using a simple switch.
Features of Optical Fiber Cable
Optical Fiber Cable has superior noise resistance, so this system can provide
highly reliable communications even in very noisy conditions.
The communications distance can be up to 20 km total (1 km max. between
nodes) if H-PCF cable is used and up to 30 km total (2 km max. between
nodes) if GI cable is used, which allows long-distance or large-scale networks.
Once the Optical Fiber Cable has been fitted with special connectors, the
cables can be easily connected or disconnected.
The following Controller Link Units are available for communications between
different models. It must be noted, however, that the wired system and optical
system cannot exist in one Controller Link Network.
Wired System
• Controller Link Unit for CS/CJ-series Programmable Controllers
• Controller Link Unit for C200HX/HG/HE Programmable Controllers
• Controller Link Unit for CVM1 and CV-series Programmable Control-
lers
• Controller Link Unit for CQM1H-series Programmable Controllers
• Controller Link Support Board for IBM PC/ATs or compatibles (ISA or
PCI bus)
The Controller Link Network can connect to other networks (Ethernet, SYS-
MAC NET, SYSMAC LINK, and another Controller Link network) via CVM1,
CV-series, CS-series, or CJ-series PCs. By installing a Communications Unit
for the Ethernet, SYSMAC NET or SYSMAC LINK on the same CS/CJ-series
or CV-series PC as a Controller Link Unit, a message service can be created
Section 1-1
5