Acquisition Monitoring Tools; Exposure Active Signal - Basler Racer User Manual

AW00118508000

6.3 Acquisition Monitoring Tools

The camera includes the acquisition status feature and generates these output signals that you can
use to monitor the progress of line acquisition by the camera:
the exposure active signal

the line trigger wait signal.

The camera also allows selecting the output of the frequency converter module as output signals.
In addition, you can check the camera's acquisition status (see below).
6.3.1

Exposure Active Signal

The camera's Exposure Active output signal will go high when the exposure time for each line
acquisition begins and goes low when the exposure time ends. The signal can for example be used
as a flash trigger.
An example of the Exposure Active signal's behavior on a camera using a rising edge hardware line
start trigger signal (ExLSTrig) and the timed exposure mode is shown in Fig. 28.
Exposure
Active Signal
ExLSTrig
Signal
Exposure
Line N
Fig. 28: Exposure Active Signal
Selecting the Exposure Active Signal as the Source Signal for the CL Spare
Output Line
To select the exposure active signal as the source signal for the CL Spare output line
using Basler pylon:
You can select the exposure active signal as the source signal for the CL Spare output line:
1. Set the LineSelector parameter to the CLSpare line.
2. Set the value of the LineSource parameter to the exposure active output signal.
You can set the LineSelector and the LineSource parameter values from within your application
software by using the Basler pylon API. The following code snippet illustrates using the API to set
the parameter values:
Basler racer Camera Link
Exposure Exposure
Line N+1
Acquisition Control
Line N+2
Not to Scale
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