Configurable point-level output fault states, Output data echo – Rockwell Automation 1715-OF8I Redundant I/O System User Manual User Manual
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Rockwell Automation Publication 1715-UM001C-EN-P - March 2014
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Digital I/O Operation
Chapter 3
Features Specific to 1715-
OBD8E Digital Output
Modules
The features described in this section are available on all ControlLogix digital
output modules.
Configurable Point-level Output Fault States
Individual outputs can be independently configured to unique fault states, either
On, Off, or Hold in case of a communication failure or Program mode.
Follow these steps to enable a fault state.
1. On the Module Properties dialog box, click the Configuration tab.
2. Choose the Fault mode.
3. Click OK.
Output Data Echo
During normal operation, when a processor sends out an output command to the
ControlLogix system, the output module that is targeted for that command
returns the commanded state of the output to the system. This process verifies
that the module has received the command and tries to execute it.
IMPORTANT
Whenever you inhibit an output module, it enters the Program mode and
all outputs change to the state configured for the Program mode. For
example, if an output module is configured so that the state of the outputs
turn off during Program mode, whenever that module is inhibited, the
outputs turn off.