Mitsubishi Electric MELSEC iQ-R Series - Creation Date and Time (Last Edit Date and Time)

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12 FILE CONTROL
12.3 Data to be specified in commands
Creation date and time (last edit date and time)
This is a date and time when the current file contents are registered.
Setting method
Represent the date (year, month, day) and time (hour, minute, second) with 16-bit value, respectively.
■Data communication in ASCII code
Convert the respective numerical value to 4-digit ASCII code (hexadecimal) and send from the upper digits (time, year).
■Data communication in binary code
Send the respective 2-byte numerical value from the lower byte (L: bits 0 to 7).
Date (year, month, day)
Represent the 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: The binary value is represented with bits 5 to 8.
• Day: The binary value is represented with bits 0 to 4.
*1 This indicates incremental number of year by regarding 1980 as '0'.
Ex.
For April 1, 2010
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