HEIDENHAIN TNC 335 Technical Manual - Manual (Page 214)

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TNC 360 6 Display and Operation 4-117
6.3.4 Display of M functions
The miscellaneous functions for control of the spindle (M03, M04, M05) and the coolant (M08, M09)
are displayed in the status display. The display of these M functions is controlled by the PLC, i.e. the
machine tool builder must take this into account when creating the PLC program. The markers
M2485 and M2486 also change the polarity of the analog voltage for the spindle. M2608 switches
off the analog output for the spindle. The programmed spindle speed is, however, still displayed (see
section "Spindle").
Marker Function Set Reset
M2485 Status display and sign of S analog for M03 PLC PLC
M2486 Status display and sign of S analog for M04
M2487 Status display for M05 and spindle stop
M2508 Status display M08 or M09
0 = Status display M09
1 = Status display M08
M2608 Status display M03, M04, M05 inverse and
S analog output = 0V
M2609 Status display M08, M09 inverse
6.3.5 Display of run duration
The TNC has three timers that measure the duration in seconds of the following states:
– Control (dialog "Control on")
– Program run (dialog "Program run")
– Spindle (dialog "Spindle on")
Control on
This timer starts with the first PLC run after the control reset.
Program run
This timer measures the duration of program run (see User's Manual TNC 360).
Spindle
The spindle operating time starts when the Markers M2485/M2486 are set and stops when they are
reset.
Display of run duration
The three timers can be called by entering the code number 85 7282 (see User's Manual TNC 360)
and can then be reset, depending on MP 7235.
Resetting the run duration timers
All timers are kept in the battery-buffered RAM and are reset after the error message "Operation
parameters erased."