FB_BA_ActuatorCmd

FB_BA_ActuatorCmd 1:

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

FB_BA_ActuatorCmd 2:

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

Block diagram

FB_BA_ActuatorCmd 3:

Syntax

FUNCTION_BLOCK FB_BA_ActuatorAnalog EXTENDS FB_BA_View
VAR_INPUT
  stCmd          : ST_BA_Binary;
END_VAR
VAR_OUTPUT
  bCmd           : BOOL;
  bDst           : BOOL;
  eActivePrio    : E_BA_Priority;
END_VAR
VAR_INPUT CONSTANT
  Cmd            : FB_BA_BO_Raw;
  PlantLock      : FB_BA_PlantLock;
END_VAR
VAR
  bPrioSfty      : BOOL;
  bPrioCrit      : BOOL;
END_VAR

FB_BA_ActuatorCmd 4: Inputs

Name

Type

Description

stCmd

ST_BA_Binary

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 binary output object Cmd.

FB_BA_ActuatorCmd 5: Outputs

Name

Type

Description

bCmd

BOOL

Current value of the binary output 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.

FB_BA_ActuatorCmd 6: Inputs CONSTANT

Name

Type

Description

Cmd

FB_BA_BO_Raw

The binary output object is used to output a switching command and transmit it to the I/O level.

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