Schneider Electric 4000 manual HOW Date and Time are Stored in the Register

63230-300-212	Appendix A—Abbreviated Register Listing
April 2001	How Power Factor is Stored in the Register

HOW DATE AND TIME ARE STORED IN THE REGISTER

The date and time are stored in a four-register compressed format. Each of the four registers, such as registers 1810 to 1813, contain a high and low byte value to represent the date and time in hexadecimal. Table A–1lists the register and the portion of the date or time it represents.

Table A–1:Date and Time Format

Register	Hi Byte		Lo Byte
Register 1	Month (1-12)		Day (1-31)
Register 2	Year (0-199)		Hour (0-23)
Register 3	Minute (0-59)		Second (0-59)
Register 4		Milliseconds

For example, if the date was 01/25/00 at 11:06:59.122, the Hex value would be 0119, 640B, 063B, 007A. Breaking it down into bytes we have the following:

Table A–2:Date and Time Byte Example

Hexadecimal		Hi Byte		Lo Byte
Value
0119	01	= month	19 = day
640B	64	= year	0B	= hour
063B	06	= minute	3B	= seconds
007A		007A = milliseconds

© 2001 Schneider Electric All Rights Reserved 129