MLAxisWritePos

Pipe Network motion icon

Inputs

Input	Data Type	Range	Unit	Default	Description
ID	DINT	No range	N/A	No default	ID Name of the Axis block.
Position	LREAL	No range	User units	No default	The new value for the axis’ current location.

Output	Data Type	Range	Unit	Description
Default (.Q)	BOOL	No range	N/A	Returns TRUE when the function successfully executes. See Pipe Network - General Rules for more information.

Output

Data Type

Range

Unit

Description

Default (.Q)

BOOL

No range

N/A

Returns TRUE when the function successfully executes.

Previous function name: MLAxisSetZero
After this function is called, the axis’ current location has a value equal to the Position argument.

Associated Data on Positions

This data are illustrated here:

All positions are in user units with modulo applied if active, unless specified.

Position / Offset	Description
Actual Position	This is the actual position of the underlying axis as reported by the drive. It is the sum of the feedback value (Position actual value) returned from the communication link to the drive and any zero-offset due to an MLWritePos function block (MLAxisWritePipPos, MLAxisWritePos). ActualPos := FeedbackPos + ZeroOffset
Feedback Position	This is the current position the drive reports for an axis, scaled to user units. It does not take into account the value of the Zero Offset or axis modulo.
Generator Position	This is the summation of all previous commands (i.e., calls to functions which perform motion such as MLAxisAbs, MLAxisMoveVel, and MLAxisRel) to the Axis internal motion generator. It is modified by MLAxisWritePos to insure no jumps in the Reference Position command. It accumulates changes in pipe position due to activate and deactivation of the pipe the Axis block is associated with.
Pipe Position	This is the output of the convertor block is written into the Pipe Position value whenever the Convertor block is connected to the axis and the pipe is active.
Reference Position	This is the commanded axis position sent to the drive. It is the summation of Pipe Position and Generator Position. ReferencePosition = Pipe Position + Generator Position
Zero Offset	This adjusts the coordinate system so the Actual Position reports correct values after homing or using MLAxisWritePos.

Not available.

MLAxisWritePos(PipeNetwork.Axis1, 0) ;