Trigger

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• • See Example: Trigger Functions for an example of Trigger functions.
  • See Pipe Block Descriptions for a description of the this pipe block and its parameters.

Name	Description
MLTrigClearFlag	Clears the flag of an initiated Trigger block.
MLTrigInit	Initializes a Trigger object for use in a PLC "Programmable Logic Controller" A Programmable Logic Controller, PLC, or Programmable Controller is a digital computer used for automation of industrial processes, such as control of machinery on factory assembly lines. Used to synchronize the flow of inputs from (physical) sensors and events with the flow of outputs to actuators and events program.
MLTrigIsTrigged	Checks if the selected block has been triggered.
MLTrigReadDelay	Returns the time the trigger block uses to compensate the delay of the sensor A sensor is a type of transducer that converts one type of energy into another for various purposes including measurement or information transfer that captures the triggering signal.
MLTrigReadPos	Returns the position of the block at the moment when it was triggered.
MLTrigReadTime	Returns the time of the moment where the block was triggered in milliseconds.
MLTrigSetEdge	Sets the edge configuration for a trigger block (e.g., rising, falling, etc.)
MLTrigWriteDelay	Sets the time the trigger block uses to compensate for the delay introduced by the sensor that captures the triggering signal.

Example: Trigger Functions

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• The trigger delay must be calculated by you and set with the MLTrigWriteDelay function block.
  This delay belongs to the sensor and it is additional to the MLTrigReadTime / MLTrigReadPos.

When you call the MLTrigClearFlag function, the flag for trigger is reset to False.

When a Fast Input is set, the MLTrigIsTriggered function returns TRUE.

Then you can call the MLTrigReadPos and MLTrigReadTime functions to get more details.

Figure 6-203: Trigger Functions Usage