HEIDENHAIN TNC 407 (280 580) User Manual - Manual (Page 32)

TNC 425/TNC 415 B/TNC 407 1-31
1 Introduction
Fig. 1.39: Text with block numbers
1.5 Interactive Programming Graphics
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Reduce or enlarge the frame overlay.
Confirm the selected section.
To undo a change in the section area:
Restore the original section.
To erase the graphic:
Shift the soft key row.
Erase the graphic.
Block number display ON/OFF
Show or omit block numbers in the program text display.