HEIDENHAIN TNC 320 - Entering the program at any point: Mid-program startup

Test Run and Program Run | Program run
15
HEIDENHAIN | TNC 320 | ISO Programming User's Manual | 10/2017
613
Entering the program at any point: Mid-program
startup
Refer to your machine manual.
The BLOCK SCAN function must be enabled and
configured by the machine tool manufacturer.
With the BLOCK SCAN function you can start an NC program at any
desired NC block. The control factors workpiece machining up to
this NC block into the calculations.
You can run the mid-program startup in the following ways:
Mid-program startup in the main program, with repetitions if
necessary
Multi-level mid-program startup in subprograms and touch probe
cycles
Mid-program startup in a point table
Block scan in pallet programs
At the start of mid-program startup the control resets all data,
as with a selection of the NC program. During the mid-program
startup, you can switch between Program Run Full Sequence and
Program Run Single Block.
NOTICE
Danger of collision!
The BLOCK SCAN function skips over the programmed touch
probe cycles. As a result, the result parameters contain no
values or, possibly, incorrect values. If the subsequent machining
operation uses these result parameters, then there is a risk of
collision!
Use the BLOCK SCAN function at multiple levels
Further information: "Procedure for multi-level mid-program
startup", page 615
The BLOCK SCAN function must not be used in
conjunction with the following functions:
Touch probe cycle G55 during the search phase of
mid-program startup