SMC3_PersistPositionSingleturn (FB)

FUNCTION_BLOCK SMC3_PersistPositionSingleturn

This functionblock serves to persist the axis position of an absolute encoder that has a limited range with a real axis.

Strictly speaking, this function block is not only for single-turn encoders but also for multi-turn encoders where the range of the encoder is a power of two and less than 2^32.

Both encoders with a range -2^k .. 2^k - 1 and a range 0 .. 2^(k+1) are supported.

InOut:

Scope	Name	Type	Initial	Comment
Inout	Axis	AXIS_REF_SM3
Inout	PersistentData	SMC3_PersistPositionSingleturn_Data
Input	bEnable	BOOL	FALSE	TRUE: Acrivates FB, else inactive.
Input	usiNumberOfAbsoluteBits	USINT	16	Number of bits that are presistent (absolute encoded) [8..32].
Output	bPositionRestored	BOOL		TRUE: The position has been restored during the last start-up of the axis.
	bPositionStored	BOOL		TRUE: The position has been stored during the last call.
	bBusy	BOOL		TRUE: FB is not idle.
	bError	BOOL	FALSE	TRUE: Èrror has occured within the function bloc.k
	eErrorID	SMC_ERROR	SMC_NO_ERROR	Error identification
	eRestoringDiag	SMC3_PersistPositionDiag	SMC3_PersistPositionDiag.SMC3_PPD_RESTORING_OK	Diagnostic information about restoring