Rockwell Automation 1791DS-IBxxxx Guard I/O DeviceNet Safety Modules - Manual (Page 91)

Rockwell Automation Publication 1791DS-UM001J-EN-P - May 2013 91
Configure Modules in RSNetWorx for DeviceNet Software Chapter 6
The General folder expands.
2. Enter the Input Error Latch Time, 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 input 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.
3. Enter the Output Error Latch Time, 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.
4. Click Apply.