MC_CamScaling

This function block applies the scaling factor of an existing cam table coupling on a slave. InSync of the existing cam table coupling is not affected by this function block.

Syntax

Definition:

FUNCTION_BLOCK MC_CamScaling
VAR_INPUT
    Slave             : Type_Camming1D;
    CamObject         : Type_CouplingFunction1D;
    Execute           : BOOL;
    Scaling           : CamScalingData;
    ActivationOptions : CamActivationOptions;
END_VAR
VAR_OUTPUT
    Done              : BOOL;
    Busy              : BOOL;
    Active            : BOOL;
    CommandAborted    : BOOL;
    Error             : BOOL;
    ErrorId           : UDINT;
END_VAR

Inputs

Name	Type	Description
Slave	Type_Camming1D	Reference to the slave axis
CamObject	Type_CouplingFunction1D	Reference to the cam object
Execute	BOOL	Apply cam scaling at rising edge
Scaling	CamScalingData	New cam scaling
ActivationOptions	CamActivationOptions	Options controlling how the cam coupling is activated (mode, position, reference object).

Outputs

Name	Type	Description
Done	BOOL	Cam scaling succeeded
Busy	BOOL	Function block is not finished and new output values are to be expected.
Active	BOOL	Function block has active control on the axis.
CommandAborted	BOOL	Command is aborted by another command.
Error	BOOL	Error occurred within function block.
ErrorId	UDINT	Error identifier

Further information

A cam plate coupling can be scaled with the function block MC_CamScaling. The raw table data of the cam plate are not affected; instead, the scaling refers to an active master/slave coupling. The following parameters can be modified: scaling factors for master and slave, and offsets for the cam plate within the coordinate system.

Optionally, the modification will only take effect from a certain master position, enabling precise scaling during the motion.

Notice

Property damage due to modifying an active cam plate coupling

This function block can also be used for an active cam plate. Valid changes are applied to the cam plate and may result in setpoint jumps. To activate cam plate scaling at a specific time or at a specific position, the following procedure is recommended:

Use ECamActivationMode.AtBoundary, ECamActivationMode.AtMasterCamPosition, or ECamActivationMode.AtMasterAbsolutePosition
Alternatively, create a copy of the active cam plate (using the CopyFrom() method) and make the changes to the copy. Next, switch between the cam plates (MC_CamExchange).

Version information

TwinCAT Standard >= v3.1.4026.23.1
TF5550 MC3 Camming >= v4.0.6 (includes TF5500 MC3 Base >= v4.0.6)

Required License

TC3 MC3 Camming