5
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5.2.9 Details of written files
For each file written to the CPU module, its name, size, and created date and time set at the file creation are
appended.
The file is displayed on the Read from PLC screen, opened by selecting [Online] [Read from PLC] in GX Developer,
as shown below.
(a) File name
1) File name structure and file specification
Each file name is composed of a name (up to 8 characters in one byte/4 characters in double bytes)
*1
and an
extension (3 characters).
Create a file name with upper-case characters only.
An extension is automatically appended according to the type set when the file was created.
*1: Only ASCII characters can be used for a name of the file stored in a memory card.
Also, characters other than ASCII may not be used for a name of the file stored in memories other than a memory card.
For ASCII characters that can be used, refer to the following.
Operating manual for the programming tool used
2) Characters that cannot be used for a file name
he following reserved words for Microsoft , Windows cannot be used as a file name.
COM1 to COM9, PRN, LPT1 to LPT9, NULL, AUX, CLOCK$, CON
3) How to specify a file name in the sequence program
In single-byte characters, an upper-case character and lower-case character are distinguished. Name a file
by an upper-case character.
*"ABC" and "abc" are distinguished.
In double-byte characters, an upper-case character and lower-case character are distinguished.
Name a file by an upper-case character.
*"ABC" and "abc" are distinguished.
Figure 5.37 Displaying the details of a file
R
R
Содержание 00JCPU
Страница 1: ......
Страница 2: ......
Страница 96: ...2 51 2 4 5 Character string data 1 Definition The CPU module uses shift JIS code character strings...
Страница 541: ......
Страница 542: ......