Input/output

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

Fig. 122: uEye properties - Input/Output

Hinweis

This tab is not available for USB uEye XS cameras.

Achtung

When you are using the uEye'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.

Flash output

With these radio buttons, you choose which digital output function you want to activate on 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 = Auto)
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.

Pulse-width modulation (GigE and USB 3 uEye cameras)

The pulse-width modulation (PWM) can be controlled by two parameters (frequency and duty cycle) and can be set on the flash output and the additional GPIOs respectively (see also is_IO()).

•Frequency (in Hz)
Frequency of the pulse-width modulation (PWM)

•Duty cycle (in %)
Duty cycle of the pulse-width modulation (PWM width)

GPIO

The GPIOs (General Purpose I/O) of the uEye cameras can be used as inputs or outputs. See the Model comparison list for the camera models which support GPIO.

•Status
Polls the signal level applied to the GPIO.

•Input
Sets the GPIO as trigger input.

•Output low
Sets the GPIO as output. The output signal is statically set to "low".

•Output high
Sets the GPIO as output. The output signal is statically set to "high".

•Flash
Sets the GPIO as flash output. The settings you made in the "Flash output" box are used.

Hinweis

Detailed information on wiring the uEye inputs and outputs is provided in the "Electrical Specifications" section of the Specifications chapter.

Default

Click this button to reset all parameters to the model-specific defaults.

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Input/output