User Manual

Table Of Contents
On Air Message Types 4-30
SmartPoint Module for the Elster A3 Meter ECMTM40000
4.18 C&I High Res Read with History Data—App Code 55
4.18.1 Application Data
This message contains the C&I High Res Read with History Data as defined in the table below, sent in
response to a Meter Read Ping message when the meter is in high res mode.
4.18.2 Relative Time Stamp
Bytes 0-1. Elapsed time since last meter reading (2 second resolution). This field is used to determine
exactly when the meter reading occurred.
4.18.3 Delta Data Type
Byte 2, bits 0-2. Used to define the amount of time represented in each History Data sample. The valid
values for Delta Data Type are defined in the table below:
Ping Response to
Data Byte (Bits)
Field
0-1 Relative Time Stamp
2
Delta Data Type (0:2)
Click Count (3:7)
3-6
Current Consumption (ST23 SUMMA-
TIONS[0])
7-10
Peak Demand Reading (ST23
DEMANDS[0].DEMAND)
11 Phase A Volts ST28 RMSVOLTSA
12 Phase B Volts ST28 RMSVOLTSB
13 Phase C Volts ST28 RMSVOLTSC
14-27
History Data In 1 Wh Resolution, stored in vari-
able bin width format
Delta Data Type
History Samp Interval
(min)
05
115
260
3
360
(6 Hours)
4
720
(12 Hours)