HEIDENHAIN NC 124 - Manual (Page 20)

2 Working with the TNC 124 – First Steps
20 TNC 124
On-screen operating instructions
The integrated operating instructions provide information and assist-
ance in any situation.
To call the operating instructions:
➤ Press the HELP key.
➤ Use the paging keys if the explanation extends over more than
one screen page.
To leave the operating instructions:
➤ Press the HELP key again.
Example: On-screen operating instructions for datum setting
(PROBE CENTERLINE)
The PROBE CENTERLINE function is described in this manual on
page 34.
➤ Select the MANUAL OPERATION mode.
➤ Press the paging key to display the second screen page.
➤ Press the HELP key.
The first page of the operating instructions for the probing
functions appears.
Page reference at the lower right of the screen:
the number in front of the slash is the current page, the number
behind the slash is the total number of pages.
The on-screen operating instructions now contain the following
information on PROBING FUNCTIONS (on three pages):
• Overview of the probing functions (page 1)
• Graphic illustration of all probing functions
(pages 2 and 3)
➤ To leave the operating instructions:
Press HELP again.
The screen returns to the menu for the probing functions.
➤ Press (for example) the soft key Centerline.
➤ Press HELP.
The screen now displays operating instructions — spread over
three pages — on the function PROBE CENTERLINE including:
• Overview of all work steps (page 1)
• Graphic illustration of the probing sequence (page 2)
• Information on how the TNC reacts and on datum setting
(page 3)
➤ To leave the on-screen operating instructions:
Press HELP again.
Fig. 2.2: On-screen operating instructions
for PROBE, page 1
Fig. 2.3: On-screen operating instructions
for PROBE CENTERLINE,
page 1
Fig. 2.4: On-screen operating instructions
for PROBE CENTERLINE,
page 2