HEIDENHAIN TNC 310 (286 140) - Manual (Page 211)

199 HEIDENHAIN TNC 310
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.4 Bloc
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Running Long
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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 section 13.4 ”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 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. 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.