HEIDENHAIN TNC 640 (34059x-04) - Manual (Page 556)

Positioning with Manual Data Input
16.1 Programming and executing simple machining operations
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TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 3/2014
16.1 Programming and executing simple
machining operations
The Positioning with Manual Data Input mode of operation is
particularly convenient for simple machining operations or to
pre-position the tool. It enables you to write a short program in
HEIDENHAIN conversational programming or in ISO format, and
execute it immediately. You can also call TNC cycles. The program
is stored in the file $MDI. In the Positioning with MDI mode of
operation, the additional status displays can also be activated.
Positioning with manual data input (MDI)
Limitation
The following functions are not available in the MDI
mode:
FK free contour programming
Program section repeats
Subprogramming
Path compensation
The programming graphics
Program call
PGM CALL
The program-run graphics
Select the Positioning with MDI mode of
operation. Program the file $MDI as you wish
Starting program run: Machine START key