MC_ReadBoolParameter (motion control read BOOL parameter)

The MC_ReadBoolParameter instruction returns the value of a vendor-specific parameter of type BOOL.

Languages supported: Function block diagram, ladder diagram, structured text.

This instruction applies to the L50E and L70E controllers that support motion control.

MC_ReadBoolParameter parameters
Parameter	Parameter Type	Data Type	Description
EN	Input	BOOL	Instruction block enable. TRUE: Execute current MC_ReadBoolParameter computation. FALSE: Reset Value output to 0. Applies only to ladder diagram programs.
AxisIn	Input	AXIS_REF FB_AXIS_REF	Use the AXIS_REF data type to define AxisIn. For FB_Axis (feedback axis), use the FB_AXIS_REF data type to define AxisIn.
Enable	Input	BOOL	TRUE: Get the value of the parameter continuously while enabled. FALSE: The Value output is reset to 0.
ParameterNumber	Input	DINT	Parameter identification. Parameter numbers definitions are defined in motion control function block parameter numbers.
ENO	Output	BOOL	Enable output. Applies only to ladder diagram programs.
Axis	Output	AXIS_REF	Axis output is read-only in ladder diagram programs.
Valid	Output	BOOL	TRUE: The value of the Parameter is available. FALSE: The Parameter value is not available.
Busy	Output	BOOL	TRUE: The function block is working and new output values are expected. FALSE: The function is idle.
Error	Output	BOOL	Indicates that an error occurred. TRUE: An error is detected. FALSE: No error.
ErrorID	Output	UINT	A unique numeric that identifies the error. The errors for this instruction are defined in Motion control function block error IDs.
Value	Output	BOOL	Value of the specified parameter in the data type, as specified by the vendor.

MC_ReadBoolParameter examples

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