Hardware manual

Impact Reference Guide Camera
2-19 Datalogic Automation Inc.
NOTE: Some third-party cameras do not have a Strobe Pulse Length setting. The strobe trigger pulse width
coincides with the camera shutter speed open time setting so that it turns on when the exposure starts (shutter
opens) and turns off when the exposure ends (shutter closes). Line scan cameras do not have a strobe output.
Advanced Button
Strobe Trigger
Select the type of trigger that the strobe you are using requires.
Rising - The output is normally off and a positive going signal is generated for the camera’s strobe.
Falling - The output is normally on and a negative going signal is generated for the camera’s strobe.
Gain
Gain adjusts the actual signal intensity from the camera. Doubling the gain value has the same effect as
opening the camera lens aperture approximately one f-stop. The range of acceptable values is determined by
the camera type.
NOTE: The gain setting for M-Series cameras is the “raw” gain setting. The range of values will vary from
camera to camera. In all cases the recommended value is the minimum gain, which corresponds to 0dB. For
example, the minimum gain setting for the M200 camera is 320 which corresponds to a gain of 0 dB.
Offset
Offset adjusts the zero grey-level setting for the camera. Adjusting the offset causes the entire image to
brighten or darken. Images become darker as the offset is increased.
Trigger Tab
Trigger On
This setting determines how the device responds to the hardware signal as an active input on the camera trig-
ger input or how it is triggered automatically. Refer to the device’s hardware guide for appropriate trigger
voltage levels. The device must be Online to respond to a hardware trigger input signal or to automatic trig-
gers.
NOTE: When it is triggered while in File Camera mode, the device will always acquire the next File Camera
image, not a live camera image.
• Rising Edge - An input signal is indicated by a trigger input voltage increase.
• Falling Edge - An input signal is indicated by a trigger input voltage decrease.
• Both Edges - An input signal is indicated by a trigger input voltage increase and decrease (two trig-
gers per input cycle). (Not available on M-Series processors)
NOTE: While either Auto-trigger or Periodic Auto-trigger mode is active, the device will ignore any hard-
ware trigger signals. Select one of the above modes if you want to use hardware triggers.
Self-Paced Auto-trigger - This is a self-paced Auto-trigger mode. The camera is automatically
triggered at the fastest rate possible without overrunning image buffers. The trigger interval is the
sum of either the camera’s acquire time or the ImageIn task’s execution time (whichever is greater),
and the Delay time. Each time the camera starts processing an image, it triggers the next image, so
that the acquisition and processing happen in parallel. This means that the acquire rate adapts to the
processing rate so the device cannot overrun the image buffers.
How to activate Auto-Trigger mode