Advantech UNO-3072LA User Manual page 63

The following example shows how you might program the watchdog
timer in BASIC:
10 REM Watchdog timer example program
20 OUT &H443, data REM Start and restart the watchdog
30 GOSUB 1000 REM Y our application task #1,
40 OUT &H443, data REM Reset the timer
50 GOSUB 2000 REM Y our application task #2,
60 OUT &H443, data REM Reset the timer
70 X=INP (&H443) REM, Disable the watchdog timer
80 END
1000 REM Subroutine #1, your application task
..
..
..
1070 RETURN
2000 REM Subroutine #2, your application task
..
..
..
2090 RETURN
53 Appendix B