FB_FlexValue

Class (FB) comparable to the structured data type ST_FlexValue from TF8560. Represents a variable without a specified data type.

Syntax:

FUNCTION_BLOCK FB_FlexValue

Properties

Name	Type	Access	Initial value	Description
Value	U_FlexValue	Get	0	Value as Union (all types).
ValueType	E_FlexValue	Get	eBOOL	Last assigned value data type (except if assigned via structure).
_BOOL	BOOL	Get, Set	FALSE	Value as BOOL.
_IBASE	I_Base	Get, Set	NULL	Value as interface I_Base.
_INT	INT	Get, Set	0	Value as INT.
_LREAL	LREAL	Get, Set	0.0	Value as LREAL.

Notice

Online Change handling

The interpretation of the _IBASE value is not handled during an Online Change! It must be ensured that the return value of the interface is a valid instance of a class!

Interfaces

Type	Description
I_FlexValue	Standard interface on FB_FlexValue.

Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT >= v3.1.4024.54 (recommended) TwinCAT >= v3.1.4024.42 (required)	PC or CX (x64, x86)	Tc3_PlasticBaseApplication (>= v3.12.7.0)