Siemens SINUMERIK 840D sl Function Manual page 1618

Z1: NC/PLC interface signals
19.6 Mode group, channel, program operation, reset response (K1)
DB21, ...
DBX35.0 Program status running
Signal state 0
● Program stopped by M00/M01 or NC Stop or operating mode change.
● If single-block mode, then the block is processed.
● End of program reached (M02/M30).
● Program aborted due to a reset.
● No actual block in the memory (e.g. for MDI).
● The actual block cannot be executed.
Signal irrelevant The part program was started with the interface signal:
for ... DB21, ... DBX7.1 (NC Start)
and is running.
Special cases, The interface signal:
errors, ...... DB21, ... DBX35.0 (program status running)
does not change to 0 if workpiece machining is stopped due to the following events:
● A feed disable or spindle disable was output
● DB21, ... DBX6.1 (read-in disable)
● Feed correction to 0%
● The spindle and axis monitoring functions respond
● Position setpoints are entered in the NC program for axes in "follow-up mode," for axes without
Corresponding to ... DB21, ... DBX6.1 (read-in disable)
DB21, ...
DBX35.1 Program status wait
Edge evaluation: No
Signal state 1 The running program is waiting for the program command WAIT_M or WAIT_E in an NC block. The
wait condition specified in the WAIT command for the channel or channels has not yet been fulfilled.
Signal state 0 Program status wait is not active.
Additional references Programming Manual, Fundamentals
DB21, ...
DBX35.2 Program status stopped
Edge evaluation: No
Signal state 1 The NC part program has been stopped by:
● DB21, ... DBX7.3 (NC Stop)
● DB21, ... DBX7.4 (NC Stop axes plus spindles)
● DB21, ... DBX7.2 (NC Stop at the block limit)
● Programmed M00 or M01
● Single-block mode
Signal state 0 "Program status stopped" is not present.
Corresponding to ... DB21, ... DBX7.3 (NC Stop)
DB21, ... DBX7.4 (NC Stop axes plus spindles)
DB21, ... DBX7.2 (NC Stop at the block limit)
1618
"servo enable," or for "parking axes"
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
or
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions