User's Guide

Chapter 5 • Features
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 47
Meter Features Not Supported
• The Aclara RF Network implementation does not support the retrieval of
seasonal data from the meter. The AMI system will report readings
throughout every season to the data warehouse. If seasonal data is wanted, it
should be available from the data warehouse (MDMS).
• The Rolling Billing Period (RBP) Peak1 and Peak2 (a.k.a. Cycle Insensitive
demand) supported by the meter is not necessary in an AMI environment.
Furthermore, the use of daily maximums within the RBP feature is not
recommended. Much better support for daily demand is available with the
common demand feature and by programming the meter to automatically
perform a demand reset every day.
• The I-210+c LP tables can be programmed to optionally capture End Values
periodically in the tables themselves. The reporting of End Values is
currently not supported. Instead the sources must be reported using the Daily
Shift (DS) message.
• Using voltage as a source for a demand calculation is not supported. The
back office systems lack a means of expressing its unit of measure.
• The reporting of the present demand value under construction is not
supported. These are primarily useful to a technician standing in front of the
meter. The billing system is interested in demand values after the demand
interval has closed out.
• Real Time Price (RTP) messaging is not supported. If the relay opens, it will
be reported, but the ability to broadcast a real time price is not currently
supported by the AMI system.
• The use of the I-210+c relay for direct load control (in which a command is
issued to a population of meters to cycle the relay for a specific duty cycle) is
currently not supported. However, should the RD contact open for load
control reasons, an alarm will be generated.
• Prepay metering within the I-210+c meter is currently not supported.
However a prepay metering function can be supported in another fashion.
The preferred approach is to leverage the 15-minute interval data (reported
every 15 minutes) and feed it to a utility back-office application, which
performs the prepay application and allocation of funds. This results in a
funds remaining message to the user and connect/disconnect commands to
the meter.
• The Aclara RF Network AMI system supports 5, 15, 30, and 60 minute LP
interval sizes. It does not support 1, 2, 3, 4, 6, 12, and 20 minute LP interval
sizes.