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3 LET'S CREATE AND EXECUTE A PROGRAM
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• A system name can contain up to 8 characters.
When Kanji characters are used in a system name, one Kanji character is
equivalent to two alphabet characters.
Therefore, only four kanji characters can be used for a system name.
• The following character strings cannot be used as system names. If used, the
operation may not be performed normally. However, it is allowed to use these
character strings as a portion of a system name.
AUX, CLOCK, CON, NUL, PRN
(3) [File Name] is a unique name used to save individual programs. Choose a name
that is easy to recognize.
[File Name] should follow the rules described below.
• Permitted characters are alphabet characters, numeric characters, kana, full-
byte characters (Kanji), and the following symbols.
!, #, $, %, &, ', (, ), -, @, ^, _, {, }, ~
• A file name is comprised of a "file name" and an "extension" delimited by a
period.
A maximum of 8 characters can be specified for a file name, and a maximum of
3 characters for extension.
• The following character strings cannot be used as a file name or extension. If
used, the operation many not be performed normally. However, it is allowed to
use these character strings as a portion of a file name and extension.
AUX, CLOCK, CON, NUL, PRN, BAT, COM, EXE
When full-byte characters (Kanji) are used in a file name and extension,
one Kanji character is equivalent to two alphabet characters.
Therefore, only four Kanji characters can be used for a file name and one
for an extension.
MELSEC-Q
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