3300 ACM Installation and Operation Manual Power Measurement Ltd.
Appendix G: Serial Communications Protocol G-11
Figure G-3d 3300 ACM Setup Registers - Part IV
PG # REG # REG DESCRIPTION BASIC/
TYPE (b) OPTIONAL
SPECIAL PURPOSE REGISTERS: PAGE 10
10 0 WO Page Register Basic
10 1 RW PT primary voltage Basic
10 2 RW PT secondary voltage Basic
10 3 RW CT primary current Basic
10 4 RW Voltage input mode
(0,1,2,3 or 4) Basic
10 5 RW Unit ID number Basic
10 6 RW Baud rate (300,1200,2400,
4800,9600,19200) Basic
10 7 RW Demand period
time constant Basic
10 8 RW Contrast/viewing
angle adjustment Basic
10 9 RW Password Basic
10 10 WO Reset all min/max values
(if equipped) Basic
10 11 WO Reset all hour counters
(kW hours Etc.) Basic
10 12 RO Firmware revision number Basic
10 13 RO Date the last firmware
revision was performed Basic
10 14 RO Feature code Basic
10 15 RO Device type
(will equal 3300) Basic
10 16 RW Allow protected reads only
(yes or no) Basic
10 17 RW Number of demand periods
(yes or no) Basic
Description of Special Purpose Registers
RESET ALL MIN/MAX VALUES
Any write to this register will result in any min/max values
being set to the present real time values.
Any Sliding Window Demand min/max values will be set to
zero.
RESET ALL HOURS COUNTER
Any write to this register will result in any hour counters (kW
hours import, kVAR hours total, Etc.) being set to zero.
FIRMWARE REVISION NUMBER
A four digit decimal representation of the firmware revision
number. For example a value of 0004D2 hex = 1234 decimal
would represent a hypothetical firmware revision of 1.2.3.4.
FEATURE CODE
Reserved for future use. Presently this will return zero.
DEVICE TYPE
Will return 3300. This will be used in future to differentiate
different devices using this same protocol format.
ALLOW PROTECTED READS ONLY
Boolean value (0 or 1) that determines whether a password is
required to read data from the meter. If a 1 is written to this
location, any read request packet must contain a correct
password or the packet will be ignored. If a 0 is written, no
password is required for normal register reads. Zero is the
default.
Courtesy of NationalSwitchgear.com