Advantech PPC-57 Series, Manual

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84 PPC-57 User's Manual
A.1 Programming the Watchdog Timer
To enable the watchdog timer, you must write a program which
writes I/O port address 443 (hex) at regular intervals. The output
data is a timer value. You can write from 01(hex) to 3E(hex), and
the related timer is 1 sec. to 62 sec.
Data Time Interval
01 1 sec.
02 2 sec.
03 3 sec.
04 4 sec.
• •
• •
• •
3E 62 sec.