MLTrigReadTime

Description

Returns the time of the moment where the block was triggered in milliseconds. This value is only valid when TrigIsTrigged() returns TRUE. The output is computed from the timestamp A timestamp is a sequence of characters, denoting the date and/or time at which a certain event occurred of a Fast Input The 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 time event

Once triggered, a block has to be reset 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.

 

Figure 7-119: MLTrigReadTime

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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

Time	Description	Returns the time that the Trigger Block's selected Fast Input was triggered
	Data type	LREAL
	Unit	milliseconds

Related Functions

MLTrigIsTrigged

MLTrigReadPos

MLTrigClearFlag

MLAxisRstFastIn

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

Previous Function Name

MLTrigGetTime

Example

//Save time when Fast Input event occurs

Trig_Time := MLTrigReadTime( PipeNetwork.TRIGGER );

Ladder Diagram

Function Block Diagram