Siemens SINUMERIK 840D sl Operating Manual page 226

Machining the workpiece
6.16 Displaying the program runtime and counting workpieces
Displayed times
● Program
Pressing the softkey the first time shows how long the program has already been running.
At every further start of the program, the time required to run the entire program the first
time is displayed.
If the program or the feedrate is changed, the new program runtime is corrected after the
first run.
● Program remainder
Here you can see how long the current program still has to run. In addition, you can follow
how much of the current program has been completed in percent on a progress bar.
The first program execution differs in the calculation of the additional program executions.
When a program is executed for the first time, the progress is estimated based on the
program size and the actual program offset. The larger the program and the more linear
that it is executed, the more precise the first estimate. This estimate is very inaccurate as
a result of the system for programs with steps and/or subprograms.
For each additional program execution, the measured overall program execution time is
used as basis for the program progress display.
● Influencing the time measurement
The time measurement is started with the start of the program and ends with the end of the
program (M30) or with an agreed M function.
When the program is running, the time measurement is interrupted with CYCLE STOP and
continued with CYCLE START.
The time measurement starts at the beginning with RESET and subsequent CYCLE
START.
The time measurement stops with CYCLE STOP or a feedrate override = 0.
Counting workpieces
You can also display program repetitions and the number of completed workpieces. For the
worpiece count, enter the actual and planned workpiece numbers.
Workpiece count
Completed workpieces can be counted via the end of program command (M30) or an M
command.
Procedure
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1. Select the "Machine" operating area.
2. Press the <AUTO> key.
3. Press the "Times, Counter" softkey.
The "Times, Counter" window opens.
Operating Manual, 05/2017, A5E40868956
Milling