HEIDENHAIN TNC 640, User Manual, Page: 169 / 948

Fundamentals, File Management | Creating and writing programs
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
169
Editing an NC program
The active NC program cannot be edited while it is
being run.
While you are creating or editing an NC program, you can select
any desired line in the NC program or individual words in a block
with the arrow keys or the soft keys:
Soft key/key Function
Change the position of the current block on the
screen. Press this soft key to display addition-
al NC blocks that are programmed before the
current block
No function if the NC program is fully visible on
the screen
Change the position of the current block on the
screen. Press this soft key to display addition-
al NC blocks that are programmed after the
current block
No function if the NC program is fully visible on
the screen
Move from one block to the next
Select individual words in a block
To select a certain block, press the
GOTO
key,
enter the desired block number, and confirm
with the
ENT
key.
Or: Press the
GOTO
key, enter the block
number step and jump up or down the number
of entered lines by pressing the
N LINES
soft
key