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