Mitsubishi MELSEC Q Series Reference Manual page 231

b15
– – – – –
0 0 0 0 0 0
b15 – – – – –
0 0 0 0 0 0
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3 WHEN COMMUNICATING USING THE QnA COMPATIBLE 3E/3C/4C FRAMES OR 4E FRAME
(p) Modification pattern (for changing filename and file size): For QnACPU files
This data section designates what data is to be modified when the data
(filename, size, date and time created) of the existing file is to be modified.
1) Data communication in ASCII code
The value shown below is converted to a 4-digit (hexadecimal) ASCII
code and sequentially transmitted beginning from the most significant
digit.
2) Data communication in binary code
The 2-byte value shown below is transmitted from the low byte (L: bits
0 to 7).
3) Values and data to be designated for the modification pattern are
shown below.
• Modifying the date and time the file was created (command:1204,
subcommand: 0000)
b4 b3 b2 –
– – – – –
0 0 0 0 0 1/0 1/0
• Modifying the filename and file size (command: 1204, subcommand:
0001)
– – – – b5 – –
0 0 0 0 1/0 0 0
b0
1/0 0 0
...... 04 , 08 , 0C
H H
Last update time modification yes/no designation
0: Do not modify the last update time
1: Modify last the update time
Last update date modification yes/no designation
0: Do not modify the last update date
1: Modify last the update date
Modification mode for data and time designation
Designate which of the following data should be used
when changing date and time.
0: Use date and time in a message
1: Use data and time of the QnACPU
(Designate dummy date and time for the message)
– b1 b0
0 1/0 1/0
...... 01 , 02 , 03
H H
File name and extension modification yes/no designation
0: Do not modify the file name and extension
1: Modify the file name and extension
File attribute modification yes/no designation
0: Do not modify the attribute
1: Modify the attribute
File size modification yes/no designation
0: Do not modify the file size
1: Modify the file size
, 14 , 18 , or 1C can be designated.
H H H H
, 20 , 21 , 22 or 23 can be designated.
H H H H H
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