218
12 FILE CONTROL
12.4 File Check
■Fixed value 2
Specify '0'.
■Number of file name characters, file name
Specify the file name of which file No. is to be read. (Page 202 File name specification)
Communication example (files for MELSEC-Q series)
Read the file No. in the following conditions.
• Password: 4 spaces (code: 20H)
• Drive No.: 0
• File name: ABC.QPG (file No.6)
■Data communication in ASCII code
(Request data)
(Response data)
■Data communication in binary code
(Request data)
(Response data)
ASCII code Binary code
1811
31
H
38
H
31
H
31
H
0000
30
H
30
H
30
H
30
H
0000
30
H
30
H
30
H
30
H
20
H
20
H
20
H
20
H
0000
30
H
30
H
30
H
30
H
0007
30
H
30
H
30
H
37
H
ABC
41
H
42
H
43
H
.QPG
2E
H
51
H
50
H
47
H
Number of file name
charactersSubcommand (Fixed value 1) Drive No. (Fixed value 2) File name
11
H
18
H
00
H
00
H
00
H
00
H
07
H
00
H
00
H
00
H
20
H
20
H
20
H
20
H
ABC
41
H
42
H
43
H
.QPG
2E
H
51
H
50
H
47
H
Subcommand
Number of file name
characters
Drive
No.
(Fixed value 2)
File name
(Fixed value 1)
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