© 2008 Siemens Energy & Automation, Inc. All Rights Reserved
PMCM-9340D-0208 ACCESS 9340 and 9360 Meters
2/2008 Appendix A—Meter Register List
EN–121
How Date and Time are Stored in Registers
The date and time are stored in a three-register compressed format.
Each of the three registers, such as registers 1810 to 1812, contain a
high and low byte value to represent the date and time in
hexadecimal. Table A–1 lists the register and the portion of the date
or time it represents.
For example, if the date was 01/25/00 at 11:06:59, the Hex value
would be 0119, 640B, 063B. Breaking it down into bytes we have the
following:
NOTE: Date format is a 3 (6-byte) register compressed format. (Year
2001 is represented as 101 in the year byte.)
Table A–1: Date and Time Format
Register Hi Byte Lo Byte
Register 0 Month (1-12) Day (1-31)
Register 1 Year (0-199) Hour (0-23)
Register 2 Minute (0-59) Second (0-59)
Table A–2: Date and Time Byte Example
Hexadecimal Value Hi Byte Lo Byte
0119 01 = month 19 = day
640B 64 = year 0B = hour
063B 06 = minute 3B = seconds
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