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Camera interfaces
Bigeye P-132
Bigeye P-629
Bigeye P-1100
Mode input (Pin 9)
The mode input provides a method for switching the camera between different
exposure control modes using an externally applied signal.
The indiviual function depends on the camera variant. The GigE Vision feature
AcquisitionControl/TriggerMode can be used to switch the mode via software.
Note
• For more information see Chapter
39.
• The active state (externally low or TriggerMode = On) is
dominant, thus image-on-demand mode is active, if one
of either settings is.
The mode input switches between the continuous free-running operation with
fixed 80 ms exposure time on the one hand and the image-on-demand mode
(IOD) on the other hand.
For long-term exposures the image-on-demand mode (IOD mode) generally has
to be activated. As a cooling of the sensor is only advantageous at longer expo-
sure times, the cooling is generally only activated in the IOD mode. In the con-
tinuous mode the cooling is switched off. This feature allows to reduce the
power consumption of the camera during standby. After re-enabling the IOD
mode a cooling time of approx. 4 – 5 minutes is needed.
Input pin 9:
open (or TTL high)
GND (or TTL low)
This camera variant is always in image-on-demand mode and does not support
continuous mode. Instead, this signal controls the behavior of the mechanical
shutter.
The shutter is automatically closed during the read-out of the sensor, in order
that no smear will take place. In case a pulsed light source is used, the shutter
needs not to be closed. This can be forced by the corresponding mode setting.
Input pin 9:
open (or TTL high)
GND (or TTL low)
The mode input switches between the continuous free-running operation with
fixed 635 ms exposure time on the one hand and the image-on-demand mode
(IOD mode) on the other hand.
For long-term exposures the image-on-demand mode (IOD mode) generally has
to be activated. As a cooling of the sensor is only advantageous at longer expo-
sure times, the cooling is generally only activated in the IOD mode. In the con-
tinuous mode the cooling is switched off. This feature allows to reduce the
power consumption of the camera during standby. After re-enabling the IOD
mode a cooling time of approx. 4 – 5 minutes is needed.
After switching to image-on-demand mode a break of at least 635 ms has to
occur before the first image exposure can take place.
Input pin 9:
open (or TTL high)
GND (or TTL low)
Mode setting
continuous operation (cooling off)
image-on-demand (cooling active)
shutter permanently open
shutter closed during image output
continuous operation (cooling off)
image-on-demand (cooling active)
Bigeye Technical Manual V2.0.0
on page
32
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