File Name Specification - Mitsubishi Electric MELSEC IQ-R series Reference Manual

File name specification

Specify the file name to be accessed.
A file name differs in specification by the module. Specify a corresponding file name for the module of access target. For
details of usable file name, refer to the manual of module for access target.
Access target
MELSEC-Q/L series module
MELSEC iQ-R series module
Files other than the one described as usable files in the manuals of modules are for system. Do not change
the file name.
File name of MELSEC-Q/L series module (File name and extension)
When using the subcommand 0000 for the read directory/file information (command: 1810), the file name (8 characters fixed)
and the extension (3 characters fixed) are stored in the response data. A period is not inserted between the file name and the
extension.
ASCII code, binary code
File name
(8 digits)
Specify the file name and the extension in ASCII code during data communication in binary code as well.
Ex.
The file name and the extension are "ABCDEFGH.QPG".
ASCII code, binary code
A B C D E
41 42 43 44 45
H H H H
12 FILE CONTROL
202
12.3 Data to be specified in commands
Usable file name
File name (up to 8 characters) and
extension (3 characters)
Specify with ASCII code character string.
Path name, file name (up to 60
characters) and extension
Specify with Unicode character string.
Extension
(3 digits)
F G H Q P G
46 47 48 51 50 47
H H H H H H H
Sub command Data specified by Message
0000 • File name (8 characters fixed) and extension (3
0004 characters fixed)
• Number of characters (up to 12 characters) and file
name character string (including the extension)
0040 • Number of characters (up to 252 characters) and file
name character string (including the path and extension)