32 Rockwell Automation Publication CNET-IN005A-EN-P - May 2011
Chapter 3 Redundant Media
Additional Resources
For more information, consult the ControlNet Standard and High-flex Coax
Cable Installation Instructions, publication 1786-IN009
.
We recommend you do not mix cable connections when using redundant
cabling, such as connecting trunk cable A to the B connector on the node.
Mixing cable connections makes it difficult to interpret cable fault
indications and locate a bad cable segment.
When in Redundant Cable mode, each node independently decides
whether to use channel A or channel B. This decision is based on error
counters internal to each node. Redundant cabling is only valid if there is
only one fault on the network. In other words, if you have a proper
redundant cabling system and you remove node 3 on trunk A and node 4
on trunk B, the system will not operate correctly because a double failure
has occurred.
To Next Page
Loading...
Need help?
General
