HEIDENHAIN TNC 640 (34059x-05) Cycle programming - Manual (Page 574)

Touch Probe Cycles: Special Functions
17.7 CALIBRATE TS LENGTH (Cycle 461, DIN/ISO: G461)
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TNC 640 | User's Manual Cycle Programming | 1/2015
Please note while programming:
HEIDENHAIN only gives warranty for the function of
the probing cycles if HEIDENHAIN touch probes are
used.
The effective length of the touch probe is always
referenced to the tool datum. The machine tool
builder usually defines the spindle tip as the tool
datum.
Before a cycle definition you must have programmed
a tool call to define the touch probe axis.
A measuring log is created automatically during
calibration. The log file is named TCHPRAUTO.html.
Datum Q434 (absolute): Datum for the length (e.g.
height of the ring gauge). Input range -99999.9999
to 99999.9999
NC blocks
5 TCH PROBE 461 CALIBRATE TS
LENGTH
Q434=+5
;DATUM