SMC_GroupReadPositionInMovement (FB)¶

FUNCTION_BLOCK SMC_GroupReadPositionInMovement

Function block for reading the position in the current movement. The result can be used for preparing a trigger using SMC_GroupPrepareTrigger by setting the PositionType to MvtRelative and the Position.MvtPosition to the Position output of this function block.

Note

If the position is read while blending between movements, then on the first half of the blending the MovementId and Position will belong to the first movement and on the second half, they will belong to the second movement. This is consistent with how trigger positions are handled when blending, but in contrast to the behavior of the Active outputs of the movement command FBs. The Active output of the second movement will become TRUE as soon as the blending starts.

InOut:

Scope	Name	Type	Comment
Inout	`AxisGroup`	AXIS_GROUP_REF_SM3	Reference to a group of axes
Input	`Enable`	`BOOL`	The position is read continuously while enabled.
Output	`Valid`	`BOOL`	`TRUE` if the `Position` and `MovementId` are valid.
	`Busy`	`BOOL`	The FB is not finished
	`Position`	`LREAL`	The current position within the current movement. The value is between 0 and 1, where 0 is the start and 1 the end of the movement.
	`MovementId`	`SMC_Movement_Id`	The id of the current movement.
	`Error`	`BOOL`	Signals that an error has occurred within the function block
	`ErrorID`	`SMC_ERROR`	Error identification