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Watchdog Acknowledge VI

LabVIEW 8.6 Real-Time Module Help
June 2008

NI Part Number:
370622F-01

»View Product Info

Owning Palette: Advanced Watchdog VIs

Installed With: RT Module

Resets the watchdog counter to the specified count, but does not start the countdown if the counter has not yet started or has expired.

Details  

watchdogID in specifies a watchdog object.
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 exception control to treat what is normally an error as no error or to treat a warning as an error. 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.
status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
watchdogID out has the same value as watchdogID in.
watchdog status is the current status of the watchdog timer. The watchdog status output can return the following values:
0disabled
1expired
2running
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 front panel indicator and select Explain Error from the shortcut menu for more information about the error.
status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

Watchdog Acknowledge Details

If the current status of the watchdog object is running, this VI restarts the countdown. If the current status of the watchdog object is expired, you must either use the Watchdog Configure VI to create a new watchdog object or use the Watchdog Start VI to restart the countdown of the watchdog timer. If the current status of the watchdog object is disabled, you must use either the Watchdog Whack VI or the Watchdog Enable VI to enable the watchdog object and start the countdown of the watchdog timer.


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