Siemens SINUMERIK 840D sl Programming Manual page 602

Additional functions
16.8 Program runtime/part counter
System variable
$AC_PROG_NET_TIME_TRIGGER
All system variables are reset to 0 as a result of POWER ON!
Reference:
A detailed description of the listed system variables is provided in:
Function Manual, Basic Functions; Mode Group, Channel, Program Operation, Reset Response (K1), Chapter: Program
runtime
Note
Machine manufacturer
Machine data MD27860 $MC_PROCESSTIMER_MODE is used to switch-in the timer that
can be activated.
The behavior of active time measurements for certain functions (e.g. GOTOS,
override = 0%, active test run feed, program test, ASUB, PROG_EVENT, ...) is configured
using machine data MD27850 $MC_PROG_NET_TIMER_MODE and
MD27860 $MC_PROCESSTIMER_MODE.
References:
Function Manual, Basic Functions; BAG, Channel, Program Operation, Reset Response
(K1), Chapter: Program runtime
602
Meaning
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.
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
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