Siemens SINUMERIK 840D sl Function Manual page 678

Detailed description
2.7 Program operation mode
In case of opertor panel reset (SW 6.3 and higher):
Time sequence of the VDI signals DB21, ... DBB35 ("program status" and "channel status")
while processing with event-controlled program call:
Program
status DB21-30
running
, ... DBX35.0)
stopped
, ... DBX35.2)
aborted
, ... DBX35.4)
Channel status
DB21-30
active
, ... DBX35.5)
interrupted
, ... DBX35.6)
Reset
, ... DBX35.7)
Figure 2-10 Time sequence of the interface signals for program status and channel status (2)
The chronological sequences from SW 6.3 and higher are shown:
Note
DB21, ... DBX35.4 ("Program status aborted") and DB21, ... DBX35.7 ("Channel status
reset") is are only received if _N_PROG_EVENT_SPF has been completed.
Neither DB21, ... DBX35.4 ("Program status aborted") nor DB21, ... DBX35.7 ("Channel
status aborted") are received between the program end and the start of the program event.
This is also the case between an operator panel reset and the start of the program event.
120
Operator panel
front reset
Basic logic functions: Mode group, channel, program operation, reset response (K1)
_N_PROG_
EVENT_SPF
active
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
_N_PROG_
EVENT_SPF
End