On this tab, you can set the parameters for the trigger input and flash output on your uEye camera (see also Digital in-/output).

Fig. 187: uEye Demo - I/O

Input

Here, you set the configuration of the digital input of the camera.

•Poll status
Via this button, you can request and display the status of the GPIOs.

•Trigger delay
Select this check box to set a delay between the arrival of a software or hardware trigger signal and the start of exposure.

When you are using the uEye camera's flash function, you need to re-enable the flash (i. e. disable and then activate it again) whenever you change the pixel clock setting or horizontal image geometry. This is necessary to newly synchronize the internal timing settings of the flash output with the start of sensor exposure.

Output

With the following options, you can activate the digital output of the camera:

•Off
The digital output is disabled.

•Constant high
The digital output is set to "High" regardless of the exposure.

•Constant low
The digital output is set to "Low" regardless of the exposure.

•Flash high active
The digital output is set to "High" during the exposure.

•Flash low active
The digital output is set to "Low" during the exposure.

•Global exposure window
The values for flash delay and duration are calculated to trigger the flash when all sensor rows are exposed simultaneously for sensors with rolling shutters. If you are using the "Global start" function, the flash delay has to be set to 0 (see also Shutter methods).

•Flash delay
Sets the delay for the digital output. After an exposure has started, activating the digital output is delayed by the time set in flash delay.

•Duration (0 = Exp.)
Sets the switching time of the digital output. The digital output is activated for the time set in "Duration". The value 0 means that the signal is active over the entire exposure time (default).
Requirement in freerun mode: The "Global exposure window" must be enabled.

Note: The uEye LE USB 3.1 Gen 1 camera family supports flash only in triggered mode and not in freerun mode.

EEPROM

Every uEye camera has a user memory to which you can write text of your choice. This can be done either here or in the IDS Camera Manager under "Camera information".

Resetting the parameters

Click on the "Default" button to reset all parameters to the model-specific defaults.