DirRename (FB; Prefix fildrn)¶
FUNCTION_BLOCK DirRename EXTENDS CBM.ETrig
This function block can be used to rename a directory and is optional for the different targets.
Contrary to the original CAA specification the directory may be renamed even if it is opened via ”FILE.DirOpen”.
This behavior is dependent of the underlying operating system and file system.
Whether this function block is implemented or not is explicitly stated and encoded in the return value of the function ”FILE.GetProperty”.
It is not recommended to use this function block to move files (it may work but is system dependent). Please use the appropriate function block ”FILE.Rename” instead.
- InOut:
Scope
Name
Type
Comment
Inherited from
Input
xExecute
BOOL
Rising edge: Action startsFalling edge: Resets outputsIf 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 completedETrig
xBusy
BOOL
TRUE
: Function block activeETrig
xError
BOOL
TRUE
: Error occurred, function block aborts actionFALSE
: No errorETrig
Input
sDirNameOld
CAA.FILENAME
Old directory name
sDirNameNew
CAA.FILENAME
New directory name
Output
eError
Local library error ID (0: no error; 5101: time out)