Fundamentals | File management
3
File names
When you store NC programs, tables and texts as files, the control
adds an extension to the file name, separated by a point. This
extension indicates the file type.
File name File type
PROG20 .H
File names, drive names and directory names on the control
must comply with the following standard: The Open Group Base
Specifications Issue 6 IEEE Std 1003.1, 2004 Edition (POSIX
Standard).
The following characters are permitted:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z a b c d e f g h i j
k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9 _ -
The following characters have special meanings:
Character Meaning
. The last period (dot) in a file name is the
extension separator
\ and / Directory separators
: Separates the drive name from the directory
Do not use any other characters. This helps to prevent file transfer
problems, etc.
The names of tables and table columns must start with
a letter and must not contain an arithmetic operator
(e.g., +). Due to SQL commands, these characters can
cause problems when data are input or read.
The maximum permitted path length is 255 characters.
The path length consists of the drive characters, the
directory name and the file name, including the extension.
Further information: "Paths", Page 107
106
HEIDENHAIN | TNC620 | Klartext Programming User's Manual | 01/2022
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