Configuration Changes In An Input Module With; Multiple Owners - Allen-Bradley Compact 5000 Series User Manual

Chapter 1 Digital Module Operation in a Control System
Configuration Changes in an
Input Module with

Multiple Owners

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Controller A sends new configuration to the module.
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• The controllers that do maintain, but do not 'own' , the module
configuration are similar to Listen-only controllers.
The difference between the controllers is that the controllers that
maintain, but do not own, the module configuration can use a Multicast
or Unicast connection over the EtherNet/IP network.
For more information on Listen-only controllers, see
page 56.
You must be careful when changing the configuration data of an input module
in a multiple-owner scenario. If the configuration data is changed in owner A
and sent to the module, the changed configuration data is accepted as the new
configuration for the module. Owner B continues to listen unaware that any
changes have been made in the behavior of the input module, as illustrated.
Figure 6 - Module Configuration Changes with Multiple Owners
ANALOG OUTPUT COUNTER
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Compact 5000™ I/O
IMPORTANT A message in Logix Designer application alerts you to the possibility of a
Rockwell Automation Publication 5069-UM004A-EN-P - April 2019
DC INPUT DC INPUT DC OUTPUT DC OUTPUT
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Controller B is unaware of any configuration changes.
multiple owner-controller situation and lets you inhibit the connection
before changing the module configuration. When changing the
configuration for a module with multiple owners, we recommend that you
inhibit the connection.
Listen Only on
DC INPUT DC OUTPUT ANALOG INPUT ANALOG OUTPUT COUNTER
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