Trigger Settings

The trigger source is selected using the Trigger panel in the Scan page.

After specifying a trigger source, the Trigger panel shows the parameters that can be configured.

Parameter	Trigger Source	Description
Source	All	Selects the trigger source (Time, Encoder, External Input, or Software).
Frame Rate	Time	Controls the frame rate. Select Max Speed from the drop-down to lock to the maximum frame rate. Fractional values are supported. For example, 0.1 can be entered to run at 1 frame every 10 seconds.
Gate on External Input	Time, Encoder	External input can be used to enable or disable data acquisition in a sensor. When this option is enabled, the sensor will respond to time or encoder triggers only when the external input is asserted. This setting is not displayed when Surface Generation is set to Fixed Length, Variable Length, or Rotational (Surface Generation). See Digital Input for more information on connecting external input to sensors.
Behavior	Encoder	Specifies how the sensor is triggered when the target moves. Can be Track Backward, Ignore Backward, or Bi-Directional. See Triggers for more information on these behaviors.
Spacing	Encoder, External Input	Specifies the distance between triggers (mm). Internally the sensor rounds the spacing to a multiple of the encoder resolution.
Reversal Distance	Encoder	When encoder triggering is set to Bi-Directional, use this setting to ignore jitter or vibrations in your transport system by specifying what distance the target must travel before a direction change is triggered. One of the following: Auto: The distance is automatically set by multiplying the value in Spacing by 3. Custom: Set the distance (in millimeters). Various functions in the sensor depend on this value to explicitly determine the point where direction change is triggered. Set this value larger than the maximum vibrations you see in your transport system.
Units	External Input, Software	Specifies whether the trigger delay, output delay, and output scheduled command operate in the time or the encoder domain. The unit is implicitly set to microseconds with Time trigger source. The unit is implicitly set to millimeters with Encoder trigger source.
Trigger Delay	External Input	Controls the amount of time or the distance the sensor waits before producing a frame after the external input is activated. This is used to compensate for the positional difference between the source of the external input trigger (e.g., photocells) and the sensor.

Depending on the surface generation settings, some trigger options may not be available.

To configure the trigger source:

Go to the Scan page.

Expand the Trigger panel by clicking on the panel header.

Select the trigger source from the drop-down.

Configure the settings.

See the trigger parameters above for more information.

Save the job in the Toolbar by clicking the Save button