SolarEncoderCD522 (FB)

FUNCTION_BLOCK SolarEncoderCD522 EXTENDS AbbLConCA

Function Block to easily integrate, with the CD522 card, incremental encoders (A, B, Z) as positioning sensors for solar trackers. Configuration -> Devices -> IO Bus -> CD522 -> CD522 IO Mapping -> Map variable for position sensors

InOut:

Scope	Name	Type	Initial	Comment	Inherited from
Input	Enable	BOOL	FALSE	A rising edge (Enable = TRUE) starts the operation, the output Busy goes to TRUE. All other inputs are read and considered continuously. A falling edge (Enable = FALSE) aborts the operation. During Aborting the Busy is still TRUE. Afterward all outputs are reset.	AbbLConCA
Output	Busy	BOOL	FALSE	Operation is running (while output Error is FALSE)	AbbLConCA
	Error	BOOL	FALSE	Operation is stopped with error (while output Busy is FALSE). This output is TRUE for at least one cycle or until Enable is set to FALSE. The output ErrorID gives more details about the error.	AbbLConCA
Input	CounterNum	WORD	0	2: counter 0 or counter 1 is to be used
	EnableCounter	BOOL	FALSE	3: enabling counter function of the CD522 module
	SetStart	BOOL	FALSE	4: Set current counter value
	SetStartValue	REAL	0	5: 32 bit start counter value
	EnableCalib	BOOL	FALSE	6: enabling calibrating process
	EnableSync	BOOL	FALSE	7: enabling synchronizing process
	MeasuringStep	REAL	0	8: measuring step
Inout	CounterIn	ARRAY [0..11] OF WORD		9: array of WORD for input of Configuration fast counter
	CounterOut	ARRAY [0..15] OF WORD		10: array of WORD for output of Configuration fast counter
	PosAct	REAL		11: 32 bit current position value
	ZValue	REAL		12: position value of the encoder’s reference point (Z).
Output	ErrorID	ERROR_ID	NO_ERROR	3: error number
	RdySet	BOOL	FALSE	4: ready message of calibrating process
	RdyCalib	BOOL	FALSE	5: ready message of calibrating process
	RdySync	BOOL	FALSE	6: ready message of synchronizing process
	ZPulse	BOOL	FALSE	7: encoder’s reference position Z reached

Methods:

D_AbortAction

A_StartAction

B_CyclicAction

C_CleaningAction

E_ResetAction

Structure:

• SolarEncoderCD522.A_StartAction (METH)
• SolarEncoderCD522.B_CyclicAction (METH)
• SolarEncoderCD522.C_CleaningAction (METH)
• SolarEncoderCD522.D_AbortAction (METH)
• SolarEncoderCD522.E_ResetAction (METH)