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%Bpr function

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Old name%BprB
FunctionThe function implements a two-position controller. Result is a value of Boolean type.
Declaration


Blok kódu
languageesl
themeConfluence
BOOL %Bpr(
  REAL in RV,
 REAL in IV,
 REAL in DeadBand,
 REAL in Hysteresis,
 BOOL in OO/CO
  )


Parameters


RVRequired value.
IVInput value.
DeadBandDead band.
HysteresisHysteresis.
OOOpening output.
COClosing output.


Note
Regulation
Control is executed according to the left part of the figure (OO/CO = @OO) or according to the right part of the figure (OO/CO = @CO).
Image Added

Parameters:

  • DeadBand = AC (>0) - real value
  • Hysteresis = BC (>0) - real value

Input variables:

  • IV (input value) - real value
  • RV (required value) - real value (constant or continuous signal)

Output variables:

  • OO (opening output) - value of Boolean type
  • CO (closing output) - value of Boolean type

Function:

  • State1: IV <= RV - AD, then OO=1 and CO=0
  • State2: RV - AD < IV < RV - AB, then OO is not changing and CO=0
  • State3: RV - AB <= IV <= RV + AB, then OO=CO=0
  • State4: RV + AB < IV < RV + AD, then OO=0 and CO is not changing
  • State5: RV + AD <= IV, then OO=0 and CO=1

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Info
titleRelated pages:

Implemented functions
Function arguments - types

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