Whacks the watchdog. Whacking the watchdog resets the watchdog counter to the specified count. If the specified count equals 0, the watchdog counter is reset to the previously specified count. Details Examples
|Place on the block diagram.||Find on the Functions palette.|
|watchdogID in identifies the watchdog timer application.|
|reset watchdog after expire? determines whether a whack after the watchdog timer has expired resets the watchdog timer. The default value is FALSE, which specifies that the watchdog timer remains expired after the first expiration.|
|error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
|watchdogID out has the same value as watchdogID in.|
|watchdog status is the current status of the watchdog timer.
The following are valid values for watchdog status:
|error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out indicator on the front panel and select Explain Error from the shortcut menu for more information about the error.
The Watchdog Whack VI also starts the watchdog timer if the current status is disabled. You can use the Watchdog Whack VI to restart the watchdog timer after it has expired.
Refer to the Watchdog Occurrence - RT Engine VI and Watchdog Reset - RT Engine VI in the labview\examples\Real-Time\RT Watchdog (PXI).llb directory for examples of using the Watchdog Whack VI.