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