HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 647)

7-186
TNC 407/TNC 415/TNC 425 5 Compatibility with TNC 355 01.98
Marker Function
M2667 No standstill monitoring axis 4
M2668 No standstill monitoring axis 5
M2810 Data format of a numerical value in M2560 to M2576
M2811 Data format of a numerical value in M2560 to M2576
M2812 Data format of a numerical value in M2560 to M2576
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 analogue
5.3.5 PLC Cycle Time
The contouring controls of the TNC 355, TNC 407 and TNC 415 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 407 24 ms
TNC 415 20 ms