AW00097603000 I/O Control
Basler aviator GigE 57
Setting the Timer Duration with an Absolute Value
You can also set the duration for a timer by using an "absolute" value. This is accomplished by
setting the Timer Duration Abs parameter. The units for setting this parameter are µs and the value
can be set in increments of 1 µs.
To set the duration for a timer using an absolute value:
Use the Timer Selector to select a timer.
Set the value of the Timer Duration Abs parameter.
You can set the Timer Selector and the Timer Duration Abs parameter value from within your
application software by using the pylon API. The following code snippet illustrates using the API to
set the selector and the parameter value for timer 1:
Camera.TimerSelector.SetValue( TimerSelector_Timer1 );
Camera.TimerDurationAbs.SetValue( 100 );
When you use the Timer Duration Abs parameter to set the duration time, the camera accomplishes
the setting change by automatically changing the Timer Duration Raw parameter to achieve the
value specified by the Timer Duration Abs setting. This leads to a limitation that you must keep in
mind if you use Timer Duration Abs parameter to set the duration time. That is, you must set the
Timer Duration Abs parameter to a value that is equivalent to a setting you could achieve by using
the Timer Duration Raw and the current Timer Duration Base parameters. For example, if the time
base was currently set to 50 µs, you could use the Timer Duration Abs parameter to set the duration
to 50 µs, 100 µs, 150 µs, etc.
If you read the current value of the Timer Duration Abs parameter, the value will indicate the product
of the Timer Duration Raw parameter and the Timer Duration Time Base. In other words, the Timer
Duration Abs parameter will indicate the current duration time setting.
You should also be aware that if you change the duration time using the raw settings, the Timer
Duration Abs parameter will automatically be updated to reflect the new duration time.
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