User's Guide

38 A c l a r a R F E l e c t r i c I - 2 1 0 + c U s e r G u i d e
Supported Quality Codes
The meter is also capable of capturing energy and demand values in as many as
1-4 TOU tiers. Demand may be captured as maximum demand and/or cumulative
demand.
Users may also wish to report on a daily basis the connect/disconnect switch
status, and the number of demand resets.
The meter can also provide engineering values such as the indicating voltage,
current, real power, reactive power, and temperature. The connect/disconnect
status
Reading Notes
Present demand values and present energy values are retrieved by the NIC from
meter table ST23, whereas previous demand and energy values are obtained from
ST25.
Maximum demand values ordinarily are accompanied by a timestamp that
indicates when the maximum occurred. However, there are situations in which a
present max demand timestamp will not be provided, or a zero value for time will
be provided. These include:
• The meter is a demand only meter.
• The demand interval has not closed out since the last demand reset has
occurred.
• The meter has not observed any usage for the specific unit of measure, e.g.,
kVAr, flow direction, e.g., reverse, and TOU tier (if any) combination since
the last demand reset.
Zeroes that show up in present max demand can be transferred to the previous max
demand with a demand reset.
If a zero value for time is sent from the meter, it will flow through the AMI system,
and at AclaraONE be converted from UTC time to local time. This will cause
occasional values for time to appear in the data representing sometime late in the
day on Dec 31, 1969. The MDM and/or billing system must recognize that this
timestamp is unreasonable and that with the zero value for the maximum, that no
demand of the specified kind was registered by the meter since the last demand
reset.
Supported Quality Codes
The Aclara RF I-210+c solution may provide any of the quality codes found in
Table 5.6.