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• In free-run, VGA mode (A504
signal which is set to 60 Hz and can not be varied. The data is output at the VGA monitor out-
put connector and at the Camera Link connectors. Timer 1 determines how long the internal
signal will remain low. Pixels are exposed and charge is accumulated when the internal con-
trol signal is low. In this mode, the exposure time can be programmed as desired by varying
the setting of the "Timer 1" parameter.
The minimum exposure time is 10 µs.
Also see section
Internal
Control
Signal
Figure 3-8: Free-run, VGA Mode
If you want to operate the camera at maximum exposure and maximum frame rate, see section
3.5
for further setting recommendations.
You can set the camera to operate in free-run using either the Camera Configuration Tool Plus
(see section 4.1) or binary commands (see section 4.2).
With the Camera Configuration Tool Plus, you use the Exposure Time Control Mode command to
set the camera for free-run and to select the edge-controlled or programmable exposure time
control mode. If you choose to operate the camera in free-run, the configuration tool will require
you to enter a frame rate; if you are using the programmable mode, you must also enter an
exposure time. The configuration tool will automatically set the Timer 1 and Timer 2 parameters
based on the values that you enter on the Exposure Tab.
With binary commands you must use the Exposure Time Control Mode command to select the
free-run, programmable or free-run, VGA mode. You must also use the Timer 1 command to set
Timer 1 and the Timer 2 command to set Timer 2.
k
Basler A500
PRELIMINARY
only), the camera generates a continuous internal control
k
2.5.9
for a description of the VGA monitor output mode.
Control Signal Period
Timer 1
Exposure
Basic Operation and Features
= 60 Hz
Timer 2
Frame Readout
3-7
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Troubleshooting
