Read File No. Usage Status (Command: 0204) - Mitsubishi Electric MELSEC IQ-R series Reference Manual

Read file No. usage status (command: 0204)

The following examples show the control procedure for reading the usage status of a file No.
Message format
■Request data
ASCII
Subcommand
Binary
Setting
Subcommand
flag
■Response data
The file No. of usage status is stored. (Page 304 File No. usage)
When a drive memory that cannot store maximum of 256 files is specified, the file No. of which file cannot be
stored (shortage) will be in use (the corresponding bit will be '1').
Data specified by request data
■Command
ASCII code
0 2 0 4
30 32 30 34
H H H H
■Subcommand
ASCII code
0 0 0 0
30 30 30 30
H H H H
■Keyword
Allow/prohibit the access to the file of the target memory. (Page 298 Keyword)
■Setting flag
Data that indicates whether the keyword is registered in the specified drive. (Page 298 Setting flag)
■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.)
15 QnACPU DEDICATED COMMANDS
316
15.3 File Control
Keyword Setting flag
Keyword Drive name
Binary code
04
H
Binary code
00
H
Drive name
02
H
00
H