Changing The File Information (Command: 1204): For The Qnacpu - Mitsubishi MELSEC Q Series Reference Manual
With melsec communication protocol
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- Programming manual (1296 pages) ,
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3.8.24 Changing the file information (command: 1204): for the QnACPU
[Control procedures]
(Data name)
External device
side
H
-
-
(Example)
1
2
0
31
32
30
H
H
(Data name)
Programmable controller CPU side
(Example)
3 - 228
3 WHEN COMMUNICATING USING THE QnA COMPATIBLE 3E/3C/4C FRAMES OR 4E FRAME
(1) Changing the file creation date (command: 1204, subcommand:
0000)
The examples shown in this section explain the control procedure for changing
the date and time when the designated file was last updated.
The order and contents of data items of the areas marked by " " shown in the
control procedure diagram differ depending on the module used as well as the
frame and format used for communication.
Refer to the detailed information described in Section 3.1.
(a) When changing the time when memory card A (RAM area, drive name: 01
filename "ABC12.QPG" was last updated by communication in ASCII code
(The file number is unknown and the time of last update is the QnACPU
time.)
Fixed to "0000" (Modifies the date and time of last update.)
(Refer to Section 3.7.1.)
L
H
-
-
L
H
L
H
-
-
-
-
L
4
0
0
0
0
0
1
2
0
0
0
0
1
34
30
30
30
30
30
31
32
30
30
30
30
31
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Keyword valid
Memory card A
(Refer to Section 3.8.1.)
Filename with extension
H
-
-
L
H
-
-
-
-
H
-
-
L
0
0
0
1
F
F
F
F
A
B
C
1
2
30
30
30
31
46
46
46
46
41
42
43
31
32
20
H
H
H
H
H
H
H
H
H
H
H
H
H
Modifies the time of last update.
Designates the QnACPU time.
-
-
L
H
-
L
H
-
-
L
H
-
-
_
_
_
Q P G
0
0
1
4
0
0
0
20
20
51
50
47
20
30
30
31
34
30
30
30
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
-
-
L
0
0
0
0
0
30
30
30
30
30
H
H
H
H
H
3- 228
)
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