FB_BA_Cont4Steps

The template determines the resulting control steps of a 4-level aggregate, depending on the continuous input signal fIn.

	The initialization of the template takes place within the method FB_Init.

Block diagram

Syntax

FUNCTION_BLOCK FB_BA_Cont4Steps EXTENDS FB_BA_View
VAR_INPUT
  bEn           : BOOL := TRUE;
  fIn           : REAL;
END_VAR
VAR_OUTPUT
  bQ01          : BOOL;
  bQ02          : BOOL;
  bQ03          : BOOL;
  bQ04          : BOOL;
END_VAR
VAR_INPUT CONSTANT
  SwitchOn01    : FB_BA_AV_Op;
  SwitchOn02    : FB_BA_AV_Op;
  SwitchOn03    : FB_BA_AV_Op;
  SwitchOn04    : FB_BA_AV_Op;
  Hys           : FB_BA_AV_Op;
  ActiveStep    : FB_BA_MV_Op;
END_VAR
VAR  ContStp    : FB_BA_ContStp;
END_VAR

Inputs

Name	Type	Description
bEn	BOOL	General enable of the template. If bEn is FALSE, all message outputs bQ0x are also FALSE.
fIn	REAL	Continuous input value from which the switching states are derived.

Outputs

Name	Type	Description
bQ01	BOOL	Shows status level 01
bQ02	BOOL	Shows status level 02
bQ03	BOOL	Shows status level 03
bQ04	BOOL	Shows status level 04

Inputs CONSTANT

Name	Type	Description
SwitchOn01	FB_BA_AV_Op	AV object for entering the switch-on point step 01.
SwitchOn02	FB_BA_AV_Op	AV object for entering the switch-on point step 02.
SwitchOn03	FB_BA_AV_Op	AV object for entering the switch-on point step 03.
SwitchOn04	FB_BA_AV_Op	AV object for entering the switch-on point step 04.
Hys	FB_BA_AV_Op	AV object for entering the hysteresis for the switch-on points.
ActiveStep	FB_BA_AV_Op	MV object for displaying how many steps are switched on.

Variables

Name	Type	Description
ContStp	FB_BA_ContStp	The function block determines the resulting control steps of a multi-stage aggregate depending on the continuous input signal fIn and is the core of this template

Requirements

Development environment	Necessary function
TwinCAT from v3.1.4024.35	TF8040 \| TwinCAT Building Automation from V5.2.1.0