HEIDENHAIN TNC 410 - Manual (Page 258)

245 HEIDENHAIN TNC 410
11.4 Blockwise Transfer: Running Longer
Programs
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 TOOL DEF
blocks. If you require more tools then use a tool table.
If the program contains a PGM CALL block, the called
program must be stored in the TNC memory.
The program may not include:
■ Subprograms
■ Program section repeats
■ Function FN15:PRINT
Blockwise program transfer
Configure the data interface with the ”Set block buffer” MOD
function (see „14.4 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
ú Enter the program name, if necessary change the
program type via soft key, and confirm with ENT. The
TNC reads in the selected program via data interface.
If you do not indicate the type of program, the TNC
will read in the type you have defined in the MOD
function „Program input“.
ú Start the part program with the machine start button. If
you have defined a block buffer greater than 0, the
TNC waits with the program start until the defined
number of NC blocks has been read in.
1
1
.4 Bloc
kwise T
ransf
er:
Running Long
er Pr
ogr
ams