SMC3_PersistPosition (FB)¶

FUNCTION_BLOCK SMC3_PersistPosition

This function block serves to persist the axis position of an axis with an absolute encoder.

This function block assumes that the encoder has a range from 0 to maxPersistedValue or from -maxPersistedValue/2 .. maxPersistedValue/2.

For persisting the position of a logical axis, see SMC3_PersistPositionLogical.

InOut:

Scope	Name	Type	Initial	Comment
Inout	`Axis`	AXIS_REF_SM3		Reference to axis
Inout	`PersistentData`	SMC3_PersistPosition_Data		Reference to the data stored persistently.
Input	`bEnable`	`BOOL`		`TRUE`: Activates FB, else inactive.
Input	`maxPersistedValue`	`DWORD`	16#FFFFFFFF	The range of the encoder. This is the maximum value returned from the encoder after it is turned on. (In case the encoder returns negative values, the range is assumed from -maxPersistedValue/2 .. maxPersistedValue/2.
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`		`TRUE`: Error has occurred within the function block.
	`eErrorID`	`SMC_ERROR`		Error identification
	`eRestoringDiag`	SMC3_PersistPositionDiag	SMC3_PersistPositionDiag.SMC3_PPD_RESTORING_OK	Diagnostic information about restoring