HEIDENHAIN TNC 640, User Manual, Page: 836 / 948

Test Run and Program Run | Program run
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
If the control should run the NC block:
Press the
NC Start
key
Repeat these steps if required to jump to the
next start-up point
Press the
NC Start
key
The control resumes execution of the NC
program.
Example of multi-level mid-program startup
You run a main program with several subprogram calls in the
program Sub.h. You work with a touch probe cycle in the main
program. You use the result of the touch probe cycle later for
positioning.
After an internal stop you wish to start up in block 8 in the second
call of the subprogram. This subprogram call is in block 53 of the
main program. The touch probe cycle is in block 28 of the main
program, i.e. before the desired start-up point.
Press the
BLOCK SCAN
soft key
In the pop-up window enter the following data:
Start-up at: N =
28
Repetitions =
1
Select the
Program Run Single Block
operating
mode if required
Press the
NC start
key until the control runs the
touch probe cycle
The control saves the result.
Press the
CONTINUE BLOCK SCAN
soft key
In the pop-up window enter the following data:
Start-up at: N =
53
Repetitions =
1
Press the
NC start
key until the control runs the
NC block
The control jumps into the subprogram Sub.h.
Press the
CONTINUE BLOCK SCAN
soft key
In the pop-up window enter the following data:
Start-up at: N =
8
Repetitions =
1
Press the
NC start
key until the control runs the
NC block
The control continues to run the subprogram and
then returns to the main program.