HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 307)

11 Test Run and Program Run 292
11.5 Blockwise Transfer:
Running Long Programs
(not with TNC 426, TNC 430)
Machine programs that require more memory space than is
available in the TNC can be transferred „blockwise“ from an
external memory.
The program blocks are read in via data interface and are then
deleted immediately after being executed. In this way programs of
unlimited length can be executed.
The program may have a maximum of 20 G99 blocks. If
you require more tools then use a tool table.
If the program contains a %... block, the called program
must be stored in the TNC memory.
The program may not include:
■ Subprograms
■ Program section repeats
■ Function D15:PRINT
Blockwise program transfer
Configure the data interface with the MOD function (see
„13.5 Setting the External Data Interface“).
ú Select the Program Run, Full Sequence mode or the
Program Run, Single Block mode.
ú Begin blockwise transfer: Press the BLOCKWISE
TRANSFER soft key
ú Enter the program name and confirm your entry with
the ENT key. The TNC reads in the selected program
via data interface
ú Start the part program with the machine START button.
11
.5 Bloc
k
w
is
e
T
ransf
er:
Running Long Pr
ogr
ams (not
TNC 426,
TNC 430)
Nkap11.pm6 29.06.2006, 08:06 292