Installation Guide User Manual

Publication CNET-IN002B-EN-P - June 2010 15
ControlNet Cable System Overview Chapter 1
Link
A link is a collection of one or more segments connected together by
repeaters.
Each node in a link must have a unique address, ranging from 1…99, to
function on the network.
Bridge
A bridge is a device that acts as a communication connection between
networks. Multiport bridges selectively forward packets of network
information from one linked segment to another segment. I/O cannot be
controlled across a bridge, only unscheduled messaging is possible.
Segment A Segment B
Link
Trunk Line
Drop Line
TR TR
TT T T TT T T
TR TR
NN N N N N
R
44990
44991
Link
TR TR TR TR
TT T T TT T T
TT T
T
Trunk Line
Drop Line
B
TR TR
R
NN N N N
NN N