MLTrigInit

 Function - Initializes a Trigger object for use in a PLC program.

• This function block is automatically called if a Trigger Block is added to the Pipe Network, with user-defined settings entered in the Pipe Blocks Properties screen.
• The Trigger object monitors a selected Fast Input and captures the time of a rising or falling edge event.
  • With the time and pipe position information, the Trigger object extrapolates the axis position when the Fast Input event occurred.
• Parameters to enter include:
  • The name of the Pipe Block.
  • The Axis where the Fast Input is located.
  • The number of the desired Fast Input.
  • Whether to trigger on the rising or falling edge of the input.

• 
  
• • Trigger objects are normally created in the Pipe Network using the graphical engine.
  • You do not have to add MLTrigInit functions to their programs.
  • Parameters are entered directly in pop-up windows; the code is automatically added to the current project.

Fast Homing - Inputs

See these topics:

• Example: Fast Homing with the Pipe Network Motion Engine Axis Pipe Block
• Example: Fast Homing with the PLCopen Motion Engine
• Fast Inputs with Pipe Network Motion
• Pipe Network Registration and Fast Homing
• Example: Registration Position Capture with Pipe Network Trigger Block

Inputs

Input	Data Type See Data Types.	Range	Unit	Default	Description
BlockID	DINT	1 to 1024	N/A	No default	ID number of an initiated Trigger object.
Input_Axis	STRING	No range	N/A	No default	Name of the axis where the Fast Input is located.
InputID	DINT	0 to 1	N/A	No default	ID number of the Fast Input. Valid values of InputID are: 0 = Touch Probe 1 / Capture Engine 0 1 = Touch Probe 2 / Capture Engine 1
TriggerMode / Edge	DINT	See Description.	N/A	No default	The edge to trigger on. 0 = Disable the Fast Input. 1 = Rising edge. 2 = Falling edge.

Outputs

Output	Data Type See Data Types.	Range	Unit	Description
Default (.Q)	BOOL	FALSE, TRUE	N/A	Returns TRUE if the function block is executed. See Pipe Network - General Rules.

FBD Language Example

FFLD Language Example

IL Language Example

Not available.

ST Language Example

//Create and Initiate a Trigger Pipe Block named “Trigger” and set it up to receive the trigger signal from Axis1, capture engine 0, and the rising edge of the signal
TRIGGER := MLBlkCreate( 'TRIGGER', 'TRIGGER' );
MLTrigInit( TRIGGER, 'Axis1', 0, 1 );

See Also

• MLAxisRstFastIn
• MLTrigClearFlag
• MLTrigIsTrigged
• MLTrigReadPos