User Manual

Table Of Contents
On Air Message Types 4-13
SmartPoint Module for the Elster A3 Meter ECMTM40000
4.9.6 Summation Reading (10
3
resolution)
Bytes 5-8. The Summation for this Tier and Sub Tier in represented as a floating point number in kilo
resolution.
4.9.7 Demand Reading (10
0
resolution)
Bytes 9-12. The Demand for this Tier and Sub Tier represented as a floating point number in 10
0
unit
resolution.
4.9.8 Cumulative Demand Reading (10
3
resolution)
Bytes 13-16. The Cumulative Demand Reading for this Tier and Sub Tier represented as a floating
point number kilo resolution. Whether this value is Cumulative or Continuously Cumulative is defined
by Bit 0 of Byte 1.
4.9.9 Coincident Reading (10
3
resolution)
Bytes 17-20. The Coincident Reading for this Tier and Sub Tier represented as a floating point number
in kilo resolution.
4.9.10 # Demand Resets
All bits of Byte 21. The number of Demand Resets detected by the meter.
4.9.11 Source Indices
The definitions for the ANSI C12.19 Source Index fields (bytes 22 to 25) are based upon the Meter
Type in byte 1. The Source Index definitions are meter-manufacturer specific. Refer to the Elster A3
technical manual for the meter’s ANSI C12.19 details.
2 (4-7)
Peak Demand Month
0-11 = Jan-Dec
3 (0-4)
Peak Demand Day
1-31 = 1
st
to the 31
st
3 (5-7), 4 (0-1)
Peak Demand Hour
0-23 = Midnight to 11:00pm
4 (2-7)
Peak Demand Minute
0-59