EOF (FB; Prefix fileof)

FUNCTION_BLOCK EOF EXTENDS CBM.ETrig

This function block sets “xEOF” to “TRUE” if the current offset is equal to the end of the file. If the end of the file has not yet been reached, “FALSE” is returned.

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

Output

eError

ERROR

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

xEOF

BOOL

End of file is reached, TRUE: yes, FALSE: no