Manual

4. Parametrizing blocks
4−14
Festo P.BE−SFC−DC−PB−S7−EN en 0604NH
4.4.3 Output parameters
Parameters Decla
ration
Data
type
Description
_Start_R_WR OUTPUT BOOL Start transfer of individual parameters
_RD_WR OUTPUT BOOL Read/write individual parameter
_PNU OUTPUT INT PNU of the current parameter
_Subindex OUTPUT BOOL Subindex of the current parameter
_Length_WR OUTPUT INT Length of the current parameter in BYTE
_Value_WR OUTPUT DWORD Current parameter value to be written
Done_RxTx OUTPUT BOOL Read DB / write DB completed
Progress OUTPUT INT Progress of transmission in %
Fault_RxTx OUTPUT BOOL Fault with Read DB / write DB
RET_VALUE OUTPUT INT Return value after incorrect processing of the block
Tab.4/8: Output parameter PRM_DB−FILE
The block is ready to operate when the Done bit supplies
TRUE and there are no faults. Transmission is started with a
positive edge; the progress of the transmission is shown in
percent at the Progress" output. During transmission the
Done bit is set to FALSE.