Mitsubishi MELSEC Q Series Reference Manual page 215

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3 WHEN COMMUNICATING USING THE QnA COMPATIBLE 3E/3C/4C FRAMES OR 4E FRAME
(b) Setting flag
This flag indicates whether or not the keyword registered in the designated
drive by the user matches the keyword of (a) above.
1) Data communication in ASCII code
The values shown below are converted to a 2-digit (hexadecimal)
ASCII code and sequentially transmitted beginning from the most
significant digit ("0").
2) Data communication in binary code
The 1-byte value shown below is transmitted.
3) The setting flag can be designated as follows.
Designated value
00
H
01
H
(c) Drive name
This is used to read the status of the drive memory usage and designates
the QnACPU drive to be defragmented.
1) Data communication in ASCII code
The values shown below, which indicate the drive to be accessed, are
converted to a 4-digit (hexadecimal) ASCII code and sequentially
transmitted beginning from the most significant digit ("0").
2) Data communication in binary code
The 2-byte values shown below, which indicate the drive to be
accessed, are sequentially transmitted beginning from the low byte (L:
bits 0 to 7).
3) The drive name can be designated as follows; other values cannot be
designated.
Designated value
0000
H
0001
H
0002
H
0003
H
0004
H
000F
H
(d) Cluster number
This value designates the head cluster number of the range over which the
status of the drive memory usage is to be read. It is designated in multiples
of 16 (for hexadecimal, 00
1) Data communication in ASCII code
Cluster No. 00
code and sequentially transmitted beginning from the most significant
digit.
2) Data communication in binary code
The 2-byte value that indicates cluster No. 00
transmitted beginning from the low byte (L: bits 0 to 7).
3) When the drive memory is defragmented, the cluster number does not
have to be designated.
Keyword is invalid (designated by a dummy)
Keyword is valid (the keyword registered in the designated drive is designated).
Internal memory (built-in RAM)
RAM area of memory card A
ROM area of memory card A
RAM area of memory card B
ROM area of memory card B
Drive storing the parameter files currently in use (designated with the QnACPU DIP
switch).
, 10 , 20 ...).
H H H
or higher is converted to a 4-digit (hexadecimal) ASCII
H
Designation
Target drive
or higher is sequentially
H
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