IDEC MicroSmart Pentra - Manual (Page 63)

W EB S ERVER CPU M ODULE U SER ’ S M ANUAL FC9Y-B1278 5-3
5: F UNCTION A REA S ETTINGS
Watchdog Timer Setting
This section describes watchdog timer setting.
Applications
The watchdog timer value for the Web server CPU module is 400 ms by default. When the default setting of 400 ms is too
small, the watchdog timer value can be changed.
Description of functions
The watchdog timer value can be changed between 100 ms and 4000 ms.
Note:
• The watchdog timer can be reset by inserting a NOP instruction in a ladder program.
Caution:
• The Watchdog Timer monitors the scan time to confirm that the system is operating normally. When changing the watch dog
time setting, consider the safety of the system and configure the appropriate value.
Programming WindLDR
1. Select Configuration from the WindLDR menu bar, and then click Self Diagnostic.
The Function Area settings dialog box appears.
Watchdog timer Settings
Select the watch dog timer setting between 100 ms and 4000 ms. The default time is 400 ms.