Siemens SINUMERIK 840D sl Function Manual page 619

Group 36
This group includes the commands which have only a preparatory character and which determine the
real nature of the punching function:
PDELAYON
PDELAYOF
Since the PLC normally needs to perform some preliminary tasks with respect to these preparatory
functions, they are programmed before the activating commands.
Group 38
This group contains the commands for switching over to a second punch interface. It can be used, for
example, for a second punching unit or set of hammer shears. A second I/O pair which can be used
for punching functionality is defined via machine data.
SPIF1
SPIF2
Note
Only one function at a time can be active within a G code group (similar, for example, to the
various interpolation modes G0, G1, G2, G3, etc. which are also mutually exclusive).
SPOF
Punching and nibbling OFF
The SPOF function terminates all punching and nibbling functions. In this state, the NCK
responds neither to the "Stroke active" signal nor to the PLC signals specific to punching and
nibbling functions.
If SPOF is programmed together with a travel command in one block (and in all further blocks
if punching/nibbling is not activated with SON or PON), the machine approaches the
programmed position without the initiation of a punching operation. SPOF deselects SON, SONS,
PON and PONS and corresponds to the Reset condition.
Programming example:
Program code
:
N20 G90 X100 SON
N25 X50 SPOF
:
SON
Nibbling ON
SON activates the nibbling function and deselects the other functions in G group35 (e.g. PON).
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
= punching with delay ON
= punching with delay OFF
= first interface is active
= second interface is active
Comment
; Activate nibbling
; Deactivate nibbling,
; Positioning without stroke initiation
N4: Own channel - only 840D sl
10.3 Activation and deactivation
619