HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 332)

HEIDENHAIN TNC 410, TNC 426, TNC 430 317
13.5 Setting the Data Interface for the
TNC 410
Press the soft key marked RS 232-SETUP to call a menu for setting
the data interfaces:
Setting the OPERATING MODE of the external
device
External device RS232 INTERFACE
HEIDENHAIN floppy disk unit
FE 401 and FE 401B
FE
Non-HEIDENHAIN devices such as EXT1, EXT2
tape punchers, PC without TNCremo
PC with HEIDENHAIN software FE
TNCremo
No data transfer; e.g. digitizing
without position value capture, or
working without an external device
none
Setting the BAUD RATE
You can set the BAUD-RATE (data transfer speed) from 110 to
115,200 baud. For each operating mode (FE, EXT1 etc.), the TNC
stores and individual BAUD RATE.
Creating the memory for blockwise transfer
In order to be able to edit other programs while blockwise
execution is in progress, you need to create a memory for
blockwise transfer.
The TNC shows the available free memory space. The reserved
memory space should be less than the total free memory space
available.
Setting the block buffer
To ensure a continuous program run during blockwise transfer, the
TNC needs a certain quantity of blocks stored in program memory.
In the block buffer you define how many NC blocks are read in
through the data interface before the TNC begins the program run.
The input value for the block buffer depends on the point intervals
in the part program. For very small point intervals, enter a large
block buffer. For large point intervals, enter a small block buffer.
Proposed value: 1000
13.5 Set
ting the D
ata Int
erf
aces f
o
r
the
TNC 41
0
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