ParameterValueFlags (GVL)ΒΆ

Parameter value flags

InOut:

Scope

Name

Type

Initial

Comment

Constant

PVF_FUNCTION

WORD

16#1

Functional access TO the parameter, Value is a FUNCTION POINTER.

PVF_POINTER

WORD

16#2

Value is a pointer to the value

PVF_VALUE

WORD

16#4

Value can be interpreted directly as a value (max. 32 Bit datatypes).

PVF_READ

WORD

16#10

Parameter can be read.

PVF_WRITE

WORD

16#20

Parameter can be written

PVF_BIDIRECTIONAL

WORD

16#100

Output is bidirectional. There will be a call in IoDrvWriteOutputs as well as in IoDrvReadInputs