File Modification; Modify File Attribute (Command: 1825) - Mitsubishi Electric MELSEC IQ-R series Reference Manual
Programmable controller
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Also See for MELSEC IQ-R series:
- Programming manual (2110 pages) ,
- User manual (760 pages) ,
- Safety manual (258 pages)
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12.6
File Modification
Read or write data from/to the specified file. Lock the file with the open/close file command during reading or writing so that
the file contents will not be changed from other devices. The file is not required to be locked with the open file command when
commands other than read/write file command are executed.
When modifying the file attributes and the last edit date and time, executing the open command is not required.
Modify file attribute (command: 1825)
Change the file attributes (read only/writable).
When this command is executed to files of parameter and a program being executed, place CPU module in
the STOP status. (Page 463 Commands that cannot be executed during RUN)
Message format
The following shows the message format of the request data and response data of the command.
■Request data
Command
Subcommand
■Response data
There is no response data for this command.
Data specified by request data
■Command
ASCII code
1
8
2
5
31
38
32
35
H
H
H
H
■Sub command
Item
For MELSEC-Q series
For MELSEC-L series
For MELSEC iQ-R series
■Password
Specify the password of the access target file. (Page 195 Password)
12 FILE CONTROL
230
12.6 File Modification
Password
Drive No.
Attribute
Binary code
25
18
H
H
ASCII code
0
0
0
0
30
30
30
30
H
H
H
H
0
0
0
4
30
30
30
34
H
H
H
H
0
0
4
0
30
30
34
30
H
H
H
H
Number of file
File name
name characters
Binary code
00
04
40
00
H
H
00
H
H
00
H
H
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