EditPoti (FB)¶

FUNCTION_BLOCK EditPoti

Short Description¶

Setpoint generator with edge-controlled increase / decrease of the setpoint.

The increment and the absolute minimum/maximum limit values are adjustable.

Typical use: Individual adjustment of a base temperature.

Portrayal¶

Interfaces¶

Outputs¶

Name
Datatype

Range

Init-Value

Function

rOut REAL
Analog - output

Setpoints / Parameters¶

Name
Datatype

Range

Init-Value

Function

xButtonUp BOOL FALSE
Increase the setpoint

xButtonDown BOOL FALSE
Decrease the setpoint

rJumpValue REAL > 0 0.2
Increment

rSetPointMin REAL -3.0
Absolute minimum value

rSetPointMax REAL 3.0
Absolute maximum value

Functional Description¶

General¶

This function block is used to generate a setpoint value at the output rOut.
Each rising edge at the setpoint / parameter xButtonUp increases the output rOut by the increment rJumpValue.
Each rising edge at the setpoint / parameter xButtonDown reduces the output rOut by the increment rJumpValue.
The output rOut is limited to the range between absolute minimum value rSetPointMin and the absolute maximum value rSetPointMax.

Adjustment of the increment rJumpValue

The increment rJumpValue may only have values greater than 0.
Values smaller than 0 are automatically reset to 0.

Einstellung des Wertebreichs rSetPointMin und rSetPointMax

Es gilt: rSetPointMin <= rSetPointMax
Es gilt: rSetPointMin = rSetPointMax = rOut
Wird eine Eingabe gemacht, bei der obere Regeln nicht beachtet werden, so wird automatisch rSetPointMin = rSetPointMax gesetzt.

Visualization¶

Information¶

Element
Authors
Datum Version
Notes

Function
Adam Bartod 09.2016 1.0
Initial version

Programming
Adam Bartod 09.2016 1.0
Initial version

Test Jochen Reu 10.2017 1.0
Initial version

Documentation
Jochen Reu 10.2017 1.0
Initial version

Documentation
Lukas Pfänder 11.2017 0.1.3.0 Revision

Codesys¶

InOut:

Scope	Name	Type	Initial	Comment
Input	rSetPointMax	REAL	3.0	Absolute maximum value
	rSetPointMin	REAL	-3.0	Absolute minimum value
	rJumpValue	REAL	0.2	Increment
	xButtonDown	BOOL	FALSE	Decrease the setpoint
	xButtonUp	BOOL	FALSE	Increase the setpoint
Output	rOut	REAL		Analog - output