When in scan is the MB+ com processor serviced in a Modicon PLC?



The MB+ com processor is serviced by a Modicon PLC upon a WDT(Watchdog Timer) reset. This occurs at the end of scan but can also be configured for additional occurrences (in 984LL only) by the segment scheduler (changing the solve type from either "continuous" or "controlled" to "WDT RESET"). In IEC servicing occurs only at the end of scan.