Relative Data - HEIDENHAIN TNC 620 User Manual

Programming contours | Path contours – FK free contour programming (option 19)

Relative data

Relative data are values based on another contour element. The soft
keys and program words for relative entries begin with the letter R.
The figure on the right shows the dimensional data that should be
programmed as relative data.
The coordinates and angles for relative data are always
programmed in incremental dimensions. You must also
enter the NC block number of the contour element on
which the data are based.
The block number of the contour element on which
the relative data are based can only be located up to
64 positioning blocks before the NC block in which you
program the reference.
If you delete an NC block on which relative data are
based, the control will display an error message. Change
the NC program first before you delete this NC block.
Data relative to NC block N: End point coordinates
Soft keys Known data
Cartesian coordinates relative to NC block N
Polar coordinates relative to NC block N
Example
12 FPOL X+10 Y+10
13 FL PR+20 PA+20
14 FL AN+45
15 FCT IX+20 DR- R20 CCA+90 RX 13
16 FL IPR+35 PA+0 RPR 13
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022
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