Rockwell Automation Publication 5069-UM004A-EN-P - April 2019 101
Input Module Features Chapter 3
Field Power Loss Detection has a corresponding tag that can be examined in
the user program if a fault occurs. For information on modules, see Appendix
B,
Module Tag Definitions on page 231.
You can also monitor a point for the presence of a field power loss via the
diagnostics that are available in the Module Properties dialog box in Logix
Designer application.
IMPORTANT Keep in mind the following:
• Field Power Loss detection is specific to the SA Power bus.
• You can use 5069-FPD field potential distributors to establish new SA
power buses that are separate from the one that the controller or
EtherNet/IP™ adapter establishes.
• If separate external power supplies are used for each SA power bus, the
loss of field power from one SA power bus does not affect modules that
draw power from other SA power buses.
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