HeatCool2Linear (FB)¶

FUNCTION_BLOCK HeatCool2Linear

Support for 6-way-valves - map a heat / cool sequence (tuple operation mode / valve setpoint) to an “change over” control signal 2..10V / 0..10V.

Some 6-way-valves do have a a combined “change over” control signal 2..10V / 0..10V but no operation mode input - see ValveSixWay. HeatCool2Linear does the mapping of the tuple operation mode / valve setpoint to such an “change over” control signal 2..10V / 0..10V.

InOut:

Scope	Name	Type	Initial	Comment
Input	xEnable	BOOL	TRUE	Enable
	rIn	REAL		Input control signal (0..100%).
	eMode	HeatCoolOperationMode	HeatCoolOperationMode.UNUSED	Operation mode.
	xSeq1Cool	BOOL	TRUE	Sequence selection: xSeq1Cool:=TRUE => sequence 1 does the cooling (sequence 2 does the heating) - xSeq1Cool:=FALSE => vice versa
	rSeq1Begin	REAL	2.0	Sequence 1 begin.
	rSeq1End	REAL	4.66	Sequence 1 end.
	rSeq2Begin	REAL	7.33	Sequence 2 begin.
	rSeq2End	REAL	10.0	Sequence 2 end.
Output	rOut	REAL		Control signal
	xError	BOOL		Error - r*End = r*Begin or rSetpt out of range 0..100%.
	eErrorID	Error		Error ID