Siemens SINUMERIK 840D sl Programming Manual page 793

system variables
$AC_PROG_NET_TIME_TRIGGER
All system variables are reset to 0 as a result of POWER ON!
Note
The activation of the selectable timers and the behavior of the active timing mechanisms in
specific situations (e.g. when test run feedrate is active, during a program test, etc.) is
controlled using machine data MD27860 $MC_PROCESSTIMER_MODE (→ machine
manufacturer).
References:
Function Manual, Basic Functions; BAG, Channel, Program Operation, Reset Response
(K1), Chapter: Program runtime
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
Significance
Trigger for the runtime measurement:
0 Neutral state
The trigger is not active.
1 Exit
Ends the measurement and copies the value
from $AC_ACT_PROG_NET_TIME into
$AC_OLD_PROG_NET_TIME.
$AC_ACT_PROG_NET_TIME is set to "0" and
then continues to run.
2 Start
Starts the measurement and in so doing sets
$AC_ACT_PROG_NET_TIME to "0".
$AC_OLD_PROG_NET_TIME is not changed.
3 Stop
Stops the measurement. Does not change
$AC_OLD_PROG_NET_TIME and keeps
$AC_ACT_PROG_NET_TIME constant until it
resumes
4 Resume
The measurement is resumed, i.e. a
measurement that was previously stopped is
continued. $AC_ACT_PROG_NET_TIME
continues to run. $AC_OLD_PROG_NET_TIME
is not changed.
Additional functions
14.8 Program runtime/part counter
Activity
Only AUTOMATIC
mode
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