FB_BA_BaseAI

The function block FB_BA_BaseAI is the base of all analog input objects.

Inheritance hierarchy

FB_BA_Base

FB_BA_BasePublisher

Illustration

FUNCTION_BLOCK ABSTRACT FB_BA_BaseAI EXTENDS FB_BA_ComEventObject IMPLEMENTS I_BA_AnalogInObject, I_BA_AnyValue
VAR_OUTPUT
  fPresentValue        : REAL;
END_VAR
VAR_INPUT CONSTANT PERSISTENT
  {region 'Variable Parameters'}
    fResolution        : REAL := BA_Param.fInput_DefResolution;
    fScaleOffset       : REAL := BA_Param.fInput_DefScaleOffset;
    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}
END_VAR

Outputs

Name	Type	Description
fPresentValue	REAL	Current analog output value of the object.

Inputs CONSTANT PERSISTENT

Name	Type	Description
fResolution	REAL	Resolution of an analog signal for scaling a measured value.
fScaleOffset	REAL	Scaling offset
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.

Requirements

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