AW00097603000 Image Acquisition Control
Basler aviator GigE 97
You can determine the readout time by reading the value of the Readout Time Abs parameter. The
parameter indicates what the readout time will be in microseconds given the camera’s current
settings. You can read the Readout Time Abs parameter value from within your application software
by using the Basler pylon API. The following code snippet illustrates using the API to get the
parameter value:
double ReadoutTime = Camera.ReadoutTimeAbs.GetValue( );
You can also use the Basler pylon Viewer application to easily get the parameter value.
For more information about the pylon Viewer, see Section 3.1.1 on page 22.
You can calculate an approximate frame transmission time by using this formula:
Note that this is an approximate frame transmission time. Due to the nature of the Ethernet network,
the transmission time could vary. Also note that the frame transmission cannot be less than the
frame readout time. So if the frame transmission time formula returns a value that is less than the
readout time, the approximate frame transmission time will be equal to the readout time.
Due to the nature of the Ethernet network, the transmission start delay can vary from frame to
frame. The transmission start delay, however, is of very low significance when compared to the
transmission time.
For more information about the Payload Size and Device Current Throughput parameters, see
Section B.1 on page 295.
Frame
Trigger
Wait
Signal
ExFSTrig
Signal
Exposure
Frame
Readout
Frame
Transmission
Exposure
Frame N
Frame N+1 Readout to
the Frame Buffer
Frame N Transmission to
Host PC
Frame N Readout to
the Frame Buffer
Exposure
Frame N+1
Exposure
Frame N+2
Transmission Start Delay
Transmission Start Delay
Timing charts are not drawn to scale
Exposure Start Delay Exposure Start Delay
Fig. 30: Exposure Start Controlled with an ExFSTrig Signal
Frame N+2 Readout to
the Frame Buffer
Exposure Start Delay
Transmission Start Delay
Frame N+1 Transmission
to Host PC
~ Frame Transmission Time
Payload Size Parameter Value
Device Current Throughput Parameter Value
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