Aclara SGM1400 Series, Руководство пользователя

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S G M 1 4 0 0 S e r i e s S m a r t M e t e r U s e r M a n u a l – S M E T S 2
Power Outages
The logical devices within the SGM1400-B Series meter will allow specific roles
to upgrade specific network elements. For example, Electricity Meter Firmware
Update Client may upgrade the E-Meter Firmware.
There are unique unicast encryption and authentication keys provided for each
role of each logical device, including the Firmware Update Client, when
connecting to each logical device within the meter. Each stakeholder for each
logical device may independently and privately access the Firmware Upgrade
client for their interested logical device. Each logical device is managed by its
own master key. Master keys can encrypt new lower-level keys for each role
securely and independently of the other logical devices.
Power Outages
The SGM1400-B meter has a configurable timer (t1) which is programmed to
distinguish the time between a long and normal power outage (the default value
for a long power outage is three minutes or greater).
Upon re-energization of the meter, t1 will determine if the power outage period
was greater than the value associated with a normal power outage. If it was, the
meter will update the Power Failure Event Log with Event ID long power outage.
For a standard power outage, the Power Failure Event Log will be updated with
Event ID.
The long power outage feature can be enabled and disabled through configuration.
If disabled, the meter will only update the normal power outage event.
Example 1
9:01:00 a.m. Power Down (477) Event
9:01:45 a.m. Power Up (478) Event (short off time)
The meter will update the Power Failure Event Log.
Example 2
9:01:00 a.m. Power Down (477) Event
9:05:45 a.m. Power Up (478) Event (long off time)
The meter will update the Long Power Failure Event Log.