ABB CL Series, Applications Manual

Page: 323 / 428

CL-NET network, COM-LINK
serial connection
320
1SVC 440 795 M1100
CL-NET network
topologies, addressing
and functions The CL-NET allows the configuration of a line topology.
There are two wiring methods which can be used for the
required addressing options:
• “Loop through the unit” wiring arrangement,
• Wiring arrangement using a T connector and a spur line.
Loop through the unit wiring method
With this wiring method it is possible to implement the
addressing of the stations via station 1 or the CL-SOFT. If the
line is interrupted, the network is no longer operational from
this point in the network.
T connector and spur line.
Each device must be addressed individually with this wiring
method by:
• Downloading the program,
• Downloading the address with CL-SOFT,
• Using the display or
• The device is already assigned an address.
If a spur line is removed on a station, all other devices in the
network remain functional.
h The spur line between the T connector and the device must
not exceed 0.3 m. Otherwise communication via CL-NET
may be impaired.