FB_BA_ActuatorAnalogTLog

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

The control value of the AO object is recorded by a trend object.

Each template is available in 2 different configurations regarding the connection to the I/O process level, see I/O mapping. This documentation refers to the RAW variant.

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

Block diagram

Syntax

FUNCTION_BLOCK FB_BA_ActuatorAnalog EXTENDS FB_BA_View
VAR_INPUT
  stCmd                   : ST_BA_Analog;
END_VAR
VAR_OUTPUT
  fMdlt                   : REAL;
  bDst                    : BOOL;
  eActivePrio             : E_BA_Priority;
END_VAR
VAR_INPUT CONSTANT
  Mdlt                    : FB_BA_AO_Raw;
  TLogMdlt                : FB_BA_Trend;
  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 output object Mdlt.

Outputs

Name	Type	Description
fMdlt	REAL	Current value of the analog 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.

Inputs CONSTANT

Name	Type	Description
Mdlt	FB_BA_AO_Raw	The analog output object is used to output the command and transmit it to the I/O level.
TLogMdlt	FB_BA_Trend	Trend logging of the control value of the Mdlt object.
PlantLock	FB_BA_PlantLock	PlantLock collects all safety-relevant faults at this level of the project structure and triggers 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.