FB_BA_ActuatorAV

The template is used to control analog aggregates. It essentially consists of an AV object for controlling an aggregate and the PlantLock function block, which collects all safety-relevant faults.

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

Block diagram

Syntax

FUNCTION_BLOCK FB_BA_ActuatorAV EXTENDS FB_BA_View
VAR_INPUT
  stCmd            : ST_BA_Analog;
END_VAR
VAR_OUTPUT
  fPresentValue    : REAL;
  bDst             : BOOL;
  eActivePrio      : E_BA_Priority;
END_VAR
VAR_INPUT CONSTANT
  Val              : FB_BA_AV;
  PlantLock        : FB_BA_PlantLock;
END_VAR
VAR
  bPrioSfty        : BOOL;
  bPrioCrit        : BOOL;
END_VAR

Inputs

Name	Type	Description
stCmd	ST_BA_Analog	The enables and switching values are transmitted to the template via the command structure stCmd . The command with the highest priority is output at the analog value object Val.

Outputs

Name	Type	Description
fPresentValue	REAL	Current value of the analog value object.
bDst	BOOL	The variable is an evaluation of the lock priorities "Safety" and "Critical" of the project structure and indicates a triggered event.
eActivePrio	E_BA_Priority	Display of the active priority.

Inputs CONSTANT

Name	Type	Description
Val	FB_BA_AV	The analog value object determines the current control value.
PlantLock	FB_BA_PlantLock	The function block PlantLock collects all safety-relevant faults at this level of the project structure and triggers switching commands in the template accordingly.

Variables

Name	Type	Description
bPrioSfty	BOOL	The variable is an evaluation of the "Safety" lock priority of the project structure.
bPrioCrit	BOOL	The variable is an evaluation of the "Critical" lock priority of the project structure.

Requirements

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