SMC_GetCamSlaveSetPosition (FB)

FUNCTION_BLOCK SMC_GetCamSlaveSetPosition

This function block calculates the current target position of an axis (slave) in the case the axis is coupled via a cam to the motion of another axis (Master). The slave is not moved or otherwise affected.

The module can be used to determine the start position, velocity, and acceleration of a slave that is coupled to a master axis via a cam table.

Due to the fact that the corresponding value is calculated within one cycle, the output Done is not necessary.

Note

This FB can only be called once to determine the start conditions that the slave must have in order to avoid ramping in. It cannot be used cyclically to read the current slave values.

InOut:

Scope	Name	Type	Initial	Comment
Inout	Master	AXIS_REF_SM3		Reference to master axis
Inout	Slave	AXIS_REF_SM3		Reference to slave axis
Input	Enable	BOOL		TRUE: Starts the execution of the function block.
	MasterOffset	LREAL		Offset of master table
	SlaveOffset	LREAL		Offset of slave table
	MasterScaling	LREAL	1	Scaling factor for master profile
	SlaveScaling	LREAL	1	Scaling factor for slave profile
	CamTableID	MC_CAM_ID		Identifier of cam table, output of MC_CamTableSelect
Output	fStartPosition	LREAL		Slave position according to cam and current master position.
	fStartVelocity	LREAL		Slave velocity according to cam and current master position.
	fStartAcceleration	LREAL		Slave acceleration according to cam and current master position.
	Busy	BOOL		TRUE: Execution of function block has not been finished yet.
	Error	BOOL		TRUE: Error has occurred within the function block.
	ErrorID	SMC_ERROR		Error identification