HEIDENHAIN TNC 335 Technical Manual - Manual (Page 507)

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TNC 360 5 Compatibility with TNC 355 8/95
5.3.2 Non-implemented markers
Marker Function
M2021 Nominal/actual speed difference over ranged
M2024 Touch probe ready
M2188 Checksum error for non-volatile Q parameters
M2288 X axis was moving when program aborted
M2289 Y axis was moving when program aborted
M2290 Z axis was moving when program aborted
M2291 Axis 4 was moving when program aborted
M2510 Deactivate spindle override
M2511 Deactivate feed rate override
M2526 Switch X/Y or Z to 4th axis
M2542 Complement for M2526
M2590 Define the axis to be switched to 4th axis (lsb)
M2591 Define the axis to be switched to 4th axis (msb)
M2592 Tool number from M2560 to M2567
M2593 Go to Hirth grid after NC STOP
M2596 Select central tool file during active program run mode
M2602 Define reference point traverse
M2603 Axis sequence for reference point traverse (lsb)
M2604 Axis sequence for reference point traverse
M2605 Axis sequence for reference point traverse
M2606 Axis sequence for reference point traverse
M2607 Axis sequence for reference point traverse (msb)
M2657 Display a second auxiliary function
M2664 No standstill monitoring X axis
M2665 No standstill monitoring Y axis
M2666 No standstill monitoring Z axis
M2667 No standstill monitoring axis 4
M2820 Update the central tool file
M2821 Strobe for updating the central tool file
M2822 Strobe for % factor for spindle voltage
M2823 Select ramp pairs for S analog
5.3.3 PLC Cycle time
The contouring controls of the TNC 355, TNC 360 and TNC 335 have different PLC cycle times. This
must be remembered when using the timers and counters.
Contouring Control PLC Cycle Time
TNC 355 without
extended memory 20 ms
TNC 355 with
extended memory 22 ms
TNC 360 24 ms
TNC 335 24 ms