Preparing Fault Routines

15-5

 

 

To define a controller fault routine:

For more information about fault codes, see the documentation for your programming software.

Defining a Watchdog Timer The watchdog timer (S:28) monitors the program scan. If the scan takes longer than the watchdog timer value, a fault routine is initiated and executed.

The timer is the maximum time (in ms) for the watchdog; or if you use an SFC, it is the maximum time for a single pass through all the active steps.

To define a different value other than the default: .

IMPORTANT

The watchdog timer can go only as low as 10 ms, even though the programming software allows single-digit inputs

Publication 1785-UM012D-EN-P - July 2005

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Bradley Smoker PLC-5 user manual 15-5