FB_BA_AV

The function block represents an analog Value object.

It has a priority array and can be commanded.

Inheritance hierarchy

FB_BA_Base

FB_BA_BasePublisher

FB_BA_Object

FB_BA_EventObject

FB_BA_EventObjectEx

Syntax

FUNCTION_BLOCK FB_BA_AV EXTENDS FB_BA_EventObjectEx IMPLEMENTS I_BA_AnalogPrioObject, I_BA_AnyValue
VAR_INPUT
  bEnSfty              : BOOL;
  fValSfty             : REAL;
  bEnCrit              : BOOL;
  fValCrit             : REAL;
  bEnManLoc            : BOOL;
  fValManLoc           : REAL;
  bEnPgm               : BOOL;
  fValPgm              : REAL;
END_VAR
VAR_OUTPUT
  fPresentValue        : REAL;
  eActivePrio          : E_BA_Priority;
END_VAR
VAR_INPUT CONSTANT PERSISTENT
  {region 'Variable Parameters'}
    fDefaultValue      : REAL;
    bEnOutOfService    : BOOL;
    eUnit              : E_BA_Unit:= E_BA_Unit.Invalid;
    fCOVIncrement      : REAL    := BA_Param.fDefCOVIncrement;
    stLowLimit         : ST_BA_LimitParam;
    stHighLimit        : ST_BA_LimitParam;
    fLimitDeadband     : REAL            := BA_Param.fDefLimitDeadband;
  {endregion}
  {region 'Operational Parameters'}
    bEnManualRm        : BOOL;
    fValManualRm       : REAL;
  {endregion}
END_VAR

Inputs

Name	Type	Description
bEnSfty	BOOL	Enabling the "Safety" priority.
fValSfty	REAL	Analog value for the "Safety" priority.
bEnCrit	BOOL	Enabling the "Critical" priority.
fValCrit	REAL	Analog value for the "Critical" priority.
bEnManLoc	BOOL	Enabling the "Manual Local" priority.
fValManLoc	REAL	Analog value for the "Manual Local" priority.
bEnPgm	BOOL	Enabling the "Program" priority.
fValPgm	REAL	Analog value for the "Program" priority.

Outputs

Name	Type	Description
fPresentValue	REAL	Current analog output value of the object.
eActivePrio	E_BA_Priority	Active priority

Inputs CONSTANT PERSISTENT

Name	Type	Description
fDefaultValue	REAL	Value that is assumed if all 16 priorities of the Priority_Array of a commandable object have no entry or are NULL.
bEnOutOfService	BOOL	This variable sets an object out of service. It is thus OutOfService.
eUnit	E_BA_Unit	Unit of the input or output value of an analog object.
fCOVIncrement	REAL	The variable specifies the minimum change in present value that will cause a COV notification to be issued to subscribed COV clients. This property is required if COV reporting is supported by this object.
stLowLimit	ST_BA_LimitParam	Parameterization of the lower limit value monitoring of an analog object. The variable bEnable must be TRUE to enable limit value monitoring. The variable fValue is used to parameterize the lower limit value.
stHighLimit	ST_BA_LimitParam	Parameterization of the upper limit value monitoring of an analog object. The variable bEnable must be TRUE to enable limit value monitoring. The variable fValue is used to parameterize the upper limit value.
fLimitDeadband	REAL	Dead band or hysteresis for the values HighLimit and LowLimit of the limit value monitoring of an analog object.
bEnManualRm	BOOL	Enabling the "Manual Remote" priority.
fValManualRm	REAL	Analog value for the "Manual Remote" priority.

Requirements

Development environment	Required PLC library
TwinCAT from v3.1.4024.35	Tc3_XBA from v5.3.0.0