F_VN_StartRelWatchdog

F_VN_StartRelWatchdog 1:

Starts a cooperative watchdog given a stop time relative to the current time.

Syntax

Definition:

FUNCTION F_VN_StartRelWatchdog : HRESULT
VAR_INPUT
    tStop  : DINT;
    hrPrev : HRESULT;
END_VAR

F_VN_StartRelWatchdog 2: Inputs

Name

Type

Description

tStop

DINT

Stop time in us

hrPrev

HRESULT

HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

F_VN_StartRelWatchdog 3: Return value

HRESULT

Further information

Further information can be found in the chapter Watchdogs.

F_VN_StartRelWatchdog 4:

tStop time exceeded

Note that the tStop time is slightly exceeded (by a few µs) when the watchdog is triggered.

Required License

TC3 Vision Base

System Requirements