FB_BA_BV_Op
The function block FB_BA_BV_Op represents a binary value object.
It is used to display or input a binary value.
If the input variable bValuePgm is linked, then the function block automatically recognizes that it is used to display the connected value. In the other case, it is used to enter a binary value.
Illustration
FUNCTION_BLOCK FB_BA_AV_Op EXTENDS FB_BA_Object IMPLEMENTS I_BA_AnalogOpObject, I_BA_AnyValue
VAR_INPUT
bValuePgm : BOOL;
END_VAR
VAR_OUTPUT
bPresentValue : BOOL;
END_VAR
VAR_INPUT CONSTANT PERSISTENT
{region 'Variable Parameters'}
eUnit : E_BA_Unit := E_BA_Unit.Invalid;
fCOVIncrement : REAL := BA_Param.fDefCOVIncrement;
{endregion}
{region 'Operational Parameters'}
fValueRm : REAL;
{endregion};
END_VAR
VAR
{region 'Interface'}
eValueSource : E_BA_ProcessSignalSource := E_BA_ProcessSignalSource.Invalid;
{endregion}
END_VAR
Inputs CONSTANT PERSISTENT
Name | Type | Description |
---|---|---|
eUnit | 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. |
fValueRm | REAL | Variable for overwriting an analog object from the HMI. |
VAR
Name | Type | Description |
---|---|---|
eValueSource | The variable indicates whether an object of the type FB_BA_..._OP serves as a display or input object. eVarInput = 1 The object is used to display a value. The value is passed to the object at an input within the PLC. eParameter = 2 The object is used to enter a parameter that can be changed by a BACnet client or the TwinCAT HMI. |
Requirements
Development environment | Required PLC library |
---|---|
TwinCAT from v3.1.4024.35 | Tc3_XBA from v5.3.0.0 |