HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 324)

324 Test run and program run
13.1 Gr
aphics
Measuring the machining time
Program Run modes of operation
The timer counts and displays the time from program start to program
end. The timer stops whenever machining is interrupted.
Test run
The timer displays the time that the TNC calculates for the duration of
tool movements that are executed at feed rate. Dwell times are
included in the calculation by the TNC. The time calculated by the TNC
can only conditionally be used for calculating the production time
because the TNC does not account for the duration of machine-
dependent interruptions, such as tool change.
Activating the stopwatch function
 Shift the soft-key row until the soft-key for the
stopwatch functions appears
 Select the stopwatch functions
 Select the desired function by soft key, e.g. saving the
displayed time
Stopwatch functions Soft key
Store displayed time
Display the sum of stored time
and displayed time
Clear displayed time
During the test run, the TNC resets the machining time as
soon as a new BLK FORM is evaluated.