AC500 Start PLC After stop from Watchdog

Hi;

For my project ı am using pm573 which communicate with two other pm573's and Scada with Modbus TCP. Sometimes PLC stops from watchdog, so ı configure it from Control Builder Plus to warmstart as it stops from Watchdog(E2 failure). It solves my problem(by use of retain variables).

But ı wonder that, how can ı start program after it stops from watchdog(not use warmstart!).

I Also know that if ı increase watchdog timer sensitivty it stops after sensitivity times of watchdog expire occurs, yet ı do not want to use that solution

I am using CB+ 2.2.0

(CB+ 2.2.0 version's Modbus TCP library have problems?, I also think if it solves my problem to upgrade to version 2.3.0)

Thanks for help