Rockwell Automation 1791DS-IBxxxx Guard I/O DeviceNet Safety Modules - Manual (Page 78)

78 Rockwell Automation Publication 1791DS-UM001J-EN-P - May 2013
Chapter 5 Configure Modules with the Logix Designer Application
3. Assign the Point Mode.
4. From the Output Error Latch Time box, enter the time the module holds
an error to make sure the controller can detect it (0…65,530 ms, in
increments of 10 ms - default 1000 ms).
This provides you more reliable diagnostics and enhances the changes that
a nuisance error is detected.
The purpose for latching output errors is to make sure that intermittent
faults that may only exist for a few milliseconds are latched long enough to
be read by the controller. The amount of time to latch the errors will be
based on the RPI, the safety task watchdog, and other application-specific
variables.
5. Click OK.
Choose Description
Not Used (default) The output is disabled.
Safety The output point is enabled, and it does not perform a pulse test on
the output.
Safety Pulse Test The output point is enabled and performs a pulse test on the output.
When the output is energized, the output pulses LO briefly. The pulse
test detects if 24V remains on the output terminal during this LO
pulse due to a short to 24V or if the output is shorted to another
output terminal.