Siemens SINUMERIK 802D sl Programming And Operating Manual page 292

Programming
10.12 Timers and workpiece counters
● $AC_CUTTING_TIME
Programming example
N10 IF $AC_CUTTING_TIME>=R10 GOTOF WZZEIT
...
N80 WZZEIT:
N90 MSG("Tool action time: Limit value reached")
N100 M0
Display
The contents of the active system variables are visible on the screen under
<OFFSET PARAM> -> "Setting data" ">" "Times/counters":
Total run time = $AC_OPERATING_TIME
Program run time = $AC_CYCLE_TIME
Feedrate run time = $AC_CUTTING_TIME
Time since cold restart = $AN_SETUP_TIME
Time since warm restart= $AN_POWERON_TIME
"Program run time" is also visible in the AUTOMATIC mode in the "Position" operating area
in the information line.
292
Tool action time (in seconds)
The runtime of the path axes is measured in all NC programs between NC START and
end of program / RESET without rapid traverse active and with the tool active (default
setting).
The measurement is interrupted when a dwell time is active.
The timer is automatically set to zero with each power-up of the control system.
Programming and Operating Manual, 11/2012, 6FC5398-5CP10-3BA0
; Tool operation time limit
value?
Surface grinding