User Manual

Table Of Contents
On Air Message Types 4-14
SmartPoint Module for the Elster A3 Meter ECMTM40000
4.9.12 Quantity of Tier Information
8 bits of byte 23 (bit 7 is reserved). Used to report the total number of tiers and sub tiers in all of the tier
data in this messages as defined in the following tables:
4.9.12.1 Number of Tiers
Bits 0-2 of the Quantity of Tier Information byte which represent the number of reported tiers not
including the Totalization tier. For example, if Tiers A,B,C, and D were configured in a meter, then
Number of Tiers would be set to 4. 5 sets of tier information would actually be sent, 1 for the
Totalization, and 1 for each of the 4 tiers.
4.9.12.2 Number of Sub Tier
Bits 3-6 of the Quantity of Tier Information byte which represent the number of Sub Tiers sent for
each tier. The minimum is 1, the maximum is 10.
4.9.13 Service Quality Message Format
This message is used to transmit Service Quality and is identified by being special Tier number 7.
Bits Description
0-2 Number of Tiers
3-6 Number of Sub Tiers
7 Reserved
App Data
Bytes
Data
0 Tier Information ( Tier = 7, SubTier Field reserved )
1-2 Service Frequency ( 0.1 Hz resolution )
3-4 RMS Amps Phase A (0.1 Amp resolution)
5-6 RMS Amps Phase B (0.1 Amp resolution)
7-8 RMS Amps Phase C (0.1 Amp resolution)
9-10 RMS Volts Phase A (0.1 Volt resolution)
11-12 RMS Volts Phase B (0.1 Volt resolution)
13-14 RMS Volts Phase C (0.1 Volt resolution)
15-16 Phase Angle B-A (0.1 degree resolution)
17-18 Phase Angle C-A (0.1 degree resolution)
19-20 Power Factor Angle Phase A (0.1 degree resolution)
21-22 Power Factor Angle Phase B (0.1 degree resolution)
23-24 Power Factor Angle Phase C (0.1 degree resolution)