Scope

Name

Type

Initial

Comment

Input

bExecute

BOOL

FALSE

Rising edge: Starts execution. While TRUE, the function block stays active

sFileName

STRING(255)

''

File path

pBuffer

POINTER TO BYTE

Pointer on a sufficiently large, free data area (buffer) that is allocated in the IEC application.

dwBufferSize

DWORD

0

Size of the buffer in byte

Output

bDone

BOOL

FALSE

TRUE, if execution finished sucessfully.

bBusy

BOOL

FALSE

TRUE, while execution of function block is not finished

bError

BOOL

FALSE

Signals, that an error has occurred within the function block

ErrorID

SMC_ERROR

0

Error identification

poqDataOut

POINTER TO SMC_OUTQUEUE

Pointer on queue that has been read in.

iObjectsRead

UDINT

0

Number of SMC_GEOINFO objects, which have been read and written to the queue up to now.