MLTrigClearFlag

Description

Clears the flag of an initiated Trigger block so the block can capture the position and time of the next event. Once triggered, a block has to be reset with this command before it can be triggered again. All events that are sent to a block while in a triggered state are ignored and the position and time information is lost.

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• The Fast InputThe inputs are taken into account at each cycle depending on the system periodicity (for example each millisecond). Under certain circumstances this can be insufficient when more accuracy is needed, or if a quick response is required from the system. To fill the gap, a drive may have some Fast Input connections (generally one or two). When an event happens that triggers a Fast Input (e.g. when a sensor sends a rising edge), the detection of a signal occurs faster (which can be 1000 times more accurate than the system periodicity). Then the timestamp associated with this input can be provided to the IPC to take corrective action assigned to a Trigger block has to be reset as well before information on a new event can be captured. MLAxisRstFastIn is generally used at the same time as MLTrigClearFlag

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• This function or function block returns cached data. See Programming a Dual Core Controller for more information.

Arguments

Input

BlockID	Description	ID number of an initiated Trigger object
	Data type	DINT
	Range	[-2147483648, 2147483648]
	Unit	N/A
	Default	—

Output

Default (.Q)	Description	Returns TRUE if function block is executed See more details here.
	Data type	BOOL
	Unit	N/A

Return Type

BOOL

Related Functions

MLAxisRstFastIn

MLTrigIsTrigged

MLTrigReadPos

MLTrigReadTime

See Also

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

Example

Structured Text

//Clear Trigger Flag MLTrigClearFlag( PipeNetwork.TRIGGER );

Ladder Diagram

Function Block Diagram