HEIDENHAIN TNC 620 User Manual page 583

Procedure for multi-level mid-program startup
If you start in a subprogram that is called several times by the main
program, use the multi-level mid-program startup. For this purpose,
jump in the main program to the desired subprogram call. Use
the function CONTINUE BLOCK SCAN to jump further from this
position.
The control only displays the dialogs required by the
process in the pop-up window.
You can also jump to the next startup point without
restoring the machine status and the axis positions
of the first startup point. For this purpose press the
soft key CONTINUE BLOCK SCAN before you confirm
the restoration with the NC START key.
Mid-program startup to the first start-up point:
Press the BLOCK SCAN soft key
Enter the first NC block where you wish to start
Press the NC START key
The control starts the block scan and calculates
until the entered NC block.
If the control should restore the machine status of the entered NC
block:
Press the NC START key
The control restores the machine status, e.g. tool
call, M functions.
If the control should restore the axis positions:
Press the NC START key
The control moves in the specified sequence to
the specified positions.
If the control should run the NC block:
Select the Program run single block operating
mode if required
Press the NC START key
The control runs the NC block.
Mid-program startup to the next start-up point:
Press the CONTINUE BLOCK SCAN soft key
Enter the NC block where you wish to start
If you changed the machine status:
Press the NC START key
If you changed the axis positions:
Press the NC START key
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
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
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