Network update time, Nuts with multiple controlnet networks, Figure 28 - example of two controlnet networks – Rockwell Automation 1756-RMxx ControlLogix Enhanced Redundancy System User Manual User Manual
Page 95
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Rockwell Automation Publication 1756-UM535D-EN-P - November 2012
95
Configure the ControlNet Network
Chapter 5
Network Update Time
The network update time (NUT) that you specify for your redundant system
impacts your system performance and your switchover response time. Typical
NUTs used with redundant systems range from 5…10 ms.
NUTs with Multiple ControlNet Networks
You can choose to use multiple ControlNet networks with your enhanced
redundancy system.
Figure 28 - Example of Two ControlNet Networks
When you use multiple ControlNet networks, the networks must use compatible
NUTs. Compatible NUTs are determined based on the network that uses the
smallest NUT.
CH2 CH1 OK
CH2 CH1 OK
ControlNet Network 1
NUT = 5 ms
ControlNet Network 2
NUT =
21 ms
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