Mitsubishi Electric MELSEC iQ-R Series - Page 326

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15 QnACPU DEDICATED COMMANDS
15.3 File Control
■Drive name
A data to specify the drive in a CPU module of which files are to be managed. (Page 298 Drive name, Drive No.)
■Fixed value
'0000' (at the time of an ASCII code) or 0000H (at the time of a binary code) is transmitted. (Page 303 Fixed value)
■File name
Character string data of a file name. (Page 299 File name, extension, and attribute)
■Extension
A character string data of extension of a file. (Page 299 File name, extension, and attribute)
■Attribute
A data to specify the file attribute (applicability of data read/write). (Page 299 File name, extension, and attribute)
Specify '20H' (readable/writable disk file) for the attribute of a new file.
■Capacity
A data to reserve the file area on the specified disk when registering a new file. It is specified with the number of bytes.
(Page 302 Capacity)
Communication example
Read the data written in the specified file under the following condition.
• Drive name: 1 (RAM area of memory card A)
• File name: ABC12.QPG
• Capacity: 172 bytes
■Data communication in ASCII code
(Request data)
(Response data)
■Data communication in binary code
(Request data)
(Response data)
Fixed value
Subcommand Keyword
Setting flag Drive name
Fixed value Fixed valueFile name Extension Attribute Size
0
30 H
0
30 H
0
30 H
A
41 H
02 H
12 H
00 H
00 H
01 H
00 H
23 H
01 H 01 H
00 H
AC H
00 H 00 H
00 H 00 H 41 H 42 H
43 H 31 H 32 H 20 H
20 H 20 H 51 H 50 H
47 H
20 H
00 H
00 H 00 H
00 H 00 H
Subcommand
Setting
flag
Command
Keyword
Drive name Fixed value Fixed value File name Extension
Attribute
Size
Fixed value
A0 H 00 H