Mitsubishi Electric MELSEC iQ-R Series - Page 302

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15 QnACPU DEDICATED COMMANDS
15.3 File Control
Last edit time and last edit date
A data that indicates the date and time when the current file content was registered.
■Data communication in ASCII code
Convert the numerical value to a 4-digit (hexadecimal) ASCII code and send it from upper digits (time, year). When dummy is
specified, send '0000H'.
■Data communication in binary code
Send 2-byte numerical value from lower bytes (L: bits 0 to 7). When dummy is specified, send '0000H'.
■Date (year, month, day)
Specify year, month , and day with 16-bit value.
• Year: The binary value is represented with bits 9 to 15 by setting the year 1980 to '0'.
*1
• Month: Specify the binary value in bit 5 to 8.
• Day: Specify the binary value in bit 0 to 4.
*1 This indicates incremental number of year by regarding 1980 as '0'.
Ex.
April 1st, 2010
■Time (hour, minute, second)
Represent hour, minute, and second with 16-bit value.
• Hour: Represent binary value with bit 11 to 15.
• Minute: Represent binary value with bit 5 to 10.
• Second: Represent binary value 2 with bit 0 to 4.
Ex.
When 20:50:58
ASCII code Binary code
ASCII code Binary code
0011110010000001
b9 b8 b4 b0
b5
b15
1E
H (30) 4 H (4) 1 H (1)
3
H C H 8 H 1 H
(Year) (Month) (Day)
Numerical values in
relevant range
30+1980 = 2010
Numerical values for
4 bits
3
33H
C
43H
8
38H
1
31H
81 H 3C H
A H 6 H 5 H D H
1
0
1
00
11
00
1
0
111
0
1
b4 b0 b10 b5 b15 b11
14 H (20) 32 H (50) 1D H (29)
58÷2＝29
(Hours) (Minutes) (Second)
Numerical values in
relevant range
Numerical values for
4 bits
A
41H
6
36H
5
35H
D
44H
5D H A6 H