MC_CombineAxes

This function block assigns a combined setpoint curve of two axes (Master1 and Master2) to a 3rd axis (slave). The CombineMode parameter of the MC_CombineMode type specifies whether the setpoint curves are added or subtracted in the combination. In addition, ratios can be specified as weighting factors for Master1 and Master2.

VAR_IN_OUT

Variable name	Data type	Description
Master1	AXIS_REF	Reference to a logical device (name of the logical device) See also AXIS_REF.
Master2	AXIS_REF	Reference to a logical device (name of the logical device) See also AXIS_REF.
Slave	AXIS_REF	Reference to a logical device (name of the logical device) See also AXIS_REF.

Variable name

Data type

Description

Master1

AXIS_REF

Reference to a logical device (name of the logical device)

VAR_INPUT

Variable name	Data type	Description
Execute	BOOL	Start execution of the module.
CombineMode	MC_CombineMode	Combination of the setpoint curves: mcAddAxes: Add the setpoint curves of Master1 and Master2. mcSubAxes: Subtract the setpoint curve of Master2 from the setpoint curve of Master1.
GearRatioNumeratorM1	DINT	Numerator ratio Master1 – Slave
GearRatioDenominatorM1	UDINT	Denominator ratio Master1 – Slave
GearRatioNumeratorM2	DINT	Numerator ratio Master2 – Slave
GearRatioDenominatorM2	UDINT	Denominator ratio Master2 – Slave

VAR_OUTPUT

Variable name	Data type	Description
InSync	BOOL
Busy	BOOL	Function block is active
Active	BOOL	Function block controls the axis
CommandAborted	BOOL	The function block was canceled by another command
Error	BOOL	An error has occurred in the function block
ErrorID	MC_ErrorId	Error number

This function block can be used to overlay two curve profiles, for example. In the following trace recording you can see how two sine curves of different period durations are additively superimposed:

Blue	Curve profile of Master1
Green	Curve profile of Master2
Red	Resulting curve profile of the slave axis