FB_BA_RampLimitDecrease

The template implements a falling ramp limitation from 100 to 0 and remains at this value.

Ramp limitation is triggered by a rising edge at the input bTrig and specified in terms of time by TiDown.

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

Block diagram

Syntax

FUNCTION_BLOCK FB_BA_RampLimitDecrease EXTENDS FB_BA_View
VAR_INPUT
  bEn          : BOOL;
  bTrig        : BOOL;
END_VAR
VAR_OUTPUT
  fY           : REAL;
END_VAR
VAR_INPUT CONSTANT
  TiDown       : FB_BA_AV_Op;
  Y            : FB_BA_AV_Op;
END_VAR
VAR
  RampFnct     : FB_BA_RampLmt;
  rtrigSync    : R_TRIG;
END_VAR

Inputs

Name	Type	Description
bEn	BOOL	General enable of the template.
bTrig	BOOL	The ramp limitation is activated by a rising edge at this input.

Outputs

Name	Type	Description
fY	REAL	Output of the ramp limiting value.

Inputs CONSTANT

Name	Type	Description
TiDown	FB_BA_AV_Op	AV object for entering the fall time of the ramp limitation.
Y	FB_BA_AV_Op	AV object for displaying the ramp limitation value.

Variables

Name	Type	Description
RampFnct	FB_BA_RampLmt	The function block for the output of a ramp limitation is the core of this template.
rtrigSync	R_TRIG	The function block triggers a rising edge and activates the ramp limitation.

Requirements

Development environment	Necessary function
TwinCAT from v3.1.4024.35	TF8040 \| TwinCAT Building Automation from V5.0.0.0