Siemens SINUMERIK 828D Function Manual

K1: Mode group, channel, program operation, reset response
9.16 Program runtime / Part counter
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
663
$AC_OLD_PROG_NET_TIME_COUNT Changes to $AC_OLD_PROG_NET_TIME
After POWERON, $AC_OLD_PROG_NET_TIME_COUNT is at "0".
$AC_OLD_PROG_NET_TIME_COUNT is always increased if the control has
newly written to $AC_OLD_PROG_NET_TIME.
If the user terminates the running program with RESET ,
$AC_OLD_PROG_NET_TIME and $AC_OLD_PROG_NET_TIME_COUNT
remain unchanged.
With $AC_OLD_PROG_NET_TIME_COUNT it can thus be ascertained,
whether $AC_OLD_PROG_NET_TIME was written.
Example:
If two programs running consecutively have the same runtime and were ended
correctly, then the user can identify this via the changed value in
$AC_OLD_PROG_NET_TIME_COUNT.
$AC_PROG_NET_TIME_TRIGGER Trigger for the runtime measurement
Used for selective measurement of program sections i.e. by writing
$AC_PROG_NET_TIME_TRIGGER in the NC program the time measurement
can be enabled and disabled again:
1. $AC_PROG_NET_TIME_TRIGGER=2 starts the measurement and in so
doing sets $AC_ACT_PROG_NET_TIME to "0".
2. $AC_PROG_NET_TIME_TRIGGER=1 ends the measurement and copies
the value from $AC_ACT_PROG_NET_TIME into
$AC_OLD_PROG_NET_TIME.
In order to exploit all trigger options, specific values for
$AC_PROG_NET_TIME_TRIGGER are filled with special functions:
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.
2Start
Starts the measurement and in so doing sets
$AC_ACT_PROG_NET_TIME to "0". $AC_OLD_PROG_NET_TIME is not
changed.
3Stop
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.
All system variables are reset to 0 as a result of POWER ON!
System variable Meaning

Siemens SINUMERIK 828D Specifications

General

Control Type	CNC
Operating System	Windows Embedded
Processor	Intel Atom
Display	10.4" color TFT display
Interfaces	Ethernet, USB
Programming	ShopMill, ShopTurn
Operation Panel Size	10.4"
Protection Class	IP65
PLC Memory	2 MB
Spindle Capacity	4 spindles
Hard Drive	CompactFlash