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# IO Input

On the Trigger tab, the IO Input section displays trigger related parameters, which can be used to control the acquisition of images.

Note:

The features vary with different camera models.

Trigger Selector

  Select the type of trigger for image acquisition.

  Frame Burst Start

    The trigger for starting the capture of the bursts of frames in an acquisition.

    A burst of frame(s) is defined as the capture of a group of one or many frame(s) within an acquisition

Trigger Mode

  Controls if the selected trigger is active.

  Off

    Disable the selected trigger.

  On

    Enable the selected trigger.

Trigger Source

  Specify the internal signal or physical input Line as the trigger source.

  Software

    Specify that the trigger source will be generated by the software when you execute the TriggerSoftware command or set Enable Auto Trigger switch to on.

  Line 0, Line 1, Line 2 ...

    Specify the selected physical line (or pin) and associated I/O control block as the external source for the trigger signal.

  Counter 0

    Specify the selected Counter signal as the internal source for the trigger.

  Action 1

    Specify the selected Action Command as the internal source for the trigger.

    Note:

    For details about Action Command, see GigE Vision Action Command.

  Anyway

    All the above-mentioned trigger source types (Software, Line 0, Line 1, Line 2 ..., Counter 0, and Action 1will be used as the source for the trigger.

Trigger Activation
  Specify which signal transition activates the trigger.
  Note:

  Trigger Activation is only available when Trigger Source is set to Line 0, Line 1, Line 2 ..., Counter 0, or Anyway.

  Rising Edge

    Specify that the trigger is considered valid on the rising edge of the source signal.

  Falling Edge

    Specify that the trigger is considered valid on the falling edge of the source signal.

  Level High

    Specify that the trigger is considered valid if the level of the source signal is high.

  Level Low
    Specify that the trigger is considered valid if the level of the source signal is low.
Trigger Delay

  Specify the delay in microseconds (μs) to apply after the trigger reception before activating it.

Auto Trigger Time

  Specify the interval in milliseconds (ms) to generate the trigger signal automatically.

  Note:

  - Auto Trigger Time is only available when you set Software as the Trigger Source.

  - Auto Trigger Time is only effective when the Enable Auto Trigger switch is set to on.

Enable Auto Trigger

  Enable the software to generate the trigger signal automatically.

  Note:

  The parameter is only available when you set Software as the Trigger Source.

Trigger Software

  Click Execute to execute the TriggerSoftware command so as to generate the trigger signal.

PostDivider

  Sets the PostDivider value for the PostDivider sub-module.

PreDivider

  Sets the pre-divider value for the pre-divider sub-module.

Encoder Selector

  Selects which Encoder to configure.

Encoder Source A/B

  Selects the input line as signal source for the shaft encoder module.

Encoder Trigger Mode

  This enumeration value selects the circumstances for the shaft encoder module to output trigger signals.

Encoder Counter Mode

  Selects the counting mode of the tick counter of the shaft encoder module.

Encoder Counter

  This integer value (read only) indicates the current value of the tick counter of the shaft encoder module.

Encoder Counter Max

  This integer value sets the maximum value for the tick counter of the shaft encoder module.

Encoder Counter Reset

  This command resets the tick counter count of the shaft encoder module to 0.

Encoder Max Reverse Counter

  This integer value sets the maximum value for the reverse counter of the shaft encoder module.

Encoder Reverse Counter Reset

  This command resets the reverse counter of the shaft encoder module to 0 and informs the module that the current direction of conveyor movement is forward. Reset must be carried out before the first conveyor movement in the forward direction.