SetPos (FB)

FUNCTION_BLOCK SetPos EXTENDS CBM.ETrig

This function block modifies the current offset for a file access. The file must be opened via FILE.Open.

InOut:

Scope

Name

Type

Comment

Inherited from

Input

xExecute

BOOL

Rising edge: Action starts

Falling edge: Resets outputs

If a falling edge occurs before the function block has completed its action, the outputs operate in the usual manner and are only reset if either the action is completed or in the event of an error. In this case, the corresponding output values (xDone, xError) are present at the outputs for exactly one cycle.

ETrig

Output

xDone

BOOL

TRUE: Action successfully completed

ETrig

xBusy

BOOL

TRUE: Function block active

ETrig

xError

BOOL

TRUE: Error occurred, function block aborts action

FALSE: No error

ETrig

Input

hFile

CAA.HANDLE

File handle

udiPos

__UXINT

Offset position, Number of bytes from the start of the file

Output

eError

ERROR

Local library error ID (0: no error; 5101: time out)