MC_ReadParameter_SML (FB)¶

FUNCTION_BLOCK FINAL MC_ReadParameter_SML

Reads the value of a SoftMotion or axis specific parameter. For the list of all SoftMotion parameter numbers see Axis_REF_SML. The value of parameters is converted to LREAL.

To read an axis specific parameter, the axis specific parameter number must be negated. For CANOpen based parameter, the axis specific parameter number is built from the object number 16#ABCD (2 Bytes) and the subindex 16#EF (1 Byte): 16#ABCDEF. Example: read object 16#6070, subindex 0: ParameterNumber:= -16#607000.

Note

Axis specific parameters are interpreted as unsigned values and converted to LREAL.

InOut:

Scope	Name	Type	Comment
Inout	`Axis`	AXIS_REF_SML	Reference to the axis
Input	`Enable`	`BOOL`	Get value is updated continuously while enabled
Input	`ParameterNumber`	`DINT`	Number of the parameter
Output	`Valid`	`BOOL`	The value is valid
	`Busy`	`BOOL`	The FB is not finished and new output values are to be expected
	`Error`	`BOOL`	An error occurred
	`ErrorID`	SML_ERROR	The error number
	`Value`	`LREAL`	The value of the parameter, converted to `LREAL`