HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 53)

37 HEIDENHAIN TNC 410, TNC 426, TNC 430
4.2 File Management: Fundamentals
Files
When you write a part program on the TNC, you must first enter a
file name. The TNC then stores the program as a file with the same
name. You can also store text and tables as files.
The TNC provides a special file management window in which you
can easily find and manage your files. Here you can call, copy,
rename and erase files.
In the TNC 410 you can manage a max. 64 files with a total of up to
128 KB.
The TNC 426, TNC 430 can manage any number of files. However,
their total size must not exceed 1.5 gigabytes.
File names
The name of a file can have up to 16 characters (TNC 410:
8 characters). When you store programs, tables and texts as files,
the TNC adds an extension to the file name, separated by a point.
This extension identifies the file type (see table at right).
PROG20 .H
File name File type
Data backup TNC 426, TNC 430
We recommend saving newly written programs and files on a PC at
regular intervals. You can do this with the cost-free backup program
TNCBACK.EXE from HEIDENHAIN. Your machine tool builder can
provide you with a copy of TNCBACK.EXE.
You also need a floppy disk on which all the machine-specific data
(PLC program, machine parameters, etc.) of your machine tool are
stored. Please contact your machine tool builder for more
information on both the backup program and the floppy disk.
Saving the contents of the entire hard disk (up to 1.5 GB)
can take up to several hours. In this case, it is a good idea
to save the data outside of working hours, (e.g.
overnight), or to use the PARALLEL EXECUTE function to
copy in the background while you work.
4.2 File Management: Fundamentals
Files in the TNC Type
Programs
in HEIDENHAIN conversational format
.H
in ISO format .I
Tables for
Tools
.T
Tool changer (TNC 410: 1 table) .TCH
Datums .D
Points .PNT
Pallets (not TNC 410) .P
Text as
ASCII files (not TNC 410)
.A
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