Energize-On-Communication-Failure; De-Energize-To-Trip; Disable Line Test - Rockwell Automation Allen-Bradley 1715-AENTR User Manual

During normal operation with an adapter present, the state of the outputs can
be configured when no connections from a Logix controller are active.
Analog output modules can be configured to OFF, HOLD LAST VALUE, or
GOTO SPECIFIED VALUE.
IMPORTANT In Shutdown mode, the analog output module will TURN OFF all
channel status indicators irrespective of the value being output.

Energize-on-communication-failure

The 1715 Redundant I/O System can be a part of an energize-on
communication failure system. This means that during a system fault, the
output module can be set so that the output is energized. This is on a point-by-
point basis. The following are examples of energize-to-trip uses:
• A fan that runs a ventilation system
• Emergency lights

De-energize-to-trip

During output, when a system fault occurs, the output module can be set so
that the output is de-energized. This is on a point-by-point basis. The following
are examples of de-energize-to-trip uses:
• Motor starters
• Safety contactors

Disable Line Test

The digital output module incorporates line test functionality that can report
and indicate 'no load' field faults. This functionality can be enabled or disabled
by checking or unchecking the box. This is on a point-by-point basis.
Rockwell Automation Publication 1715-UM001J-EN-P - December 2020
Chapter 4 Digital I/O Operation
131