User's Manual
Operation: CVSO OpenWay Register
46 CENTRON® OpenWay™ Meter Technical Reference Guide
The table below shows the recording duration (in days) for 144 kilobytes (KB) load profile
memory size.
INTERVAL LENGTH (Minutes)
Number of
Channels
1 2 3 4 5 6 10 12 15 20 30 60
1 25 50 75 100
125
150
251
301
376
502
753
1506
2 16 33 50 66 83 100
167
200
250
334
501
1003
3 12 25 37 50 62 75 125
150
187
250
375
751
4 10 20 30 40 50 60 100
120
150
200
300
601
5 8 16 25 33 41 50 83 100
125
166
250
500
6 7 14 21 28 35 42 71 85 107
143
214
429
7 6 12 18 25 31 37 62 75 93 125
187
375
8 5 11 16 22 27 33 55 66 83 111
166
333
Event Log
The D/T/L Register has an Event Log that records historical events that have taken place in
the meter. The events to be logged must be configured via the PC-PRO+ Advanced
programming software. To aid in troubleshooting, Itron recommends enabling all events to
be logged.
In order to have date and time associated with an event, Time-of-Use or Load Profile
is required. A Demand-only D/T/L Register allows for event log recording. However,
in the event of a power outage, the date and time will not be reliable.
The D/T/L Register Event Log is circular in nature, allowing for the capture of the most
recent events in the meter at all times. The CENTRON OpenWay meter is capable of
retaining 420 events prior to wrapping.
Each event log record includes an event description, a time and date stamp, and additional
information on certain events.
For meters with batteries, all logged events are retained through a power outage. For meters
without batteries, the Event Log is periodically written to non-volatile memory. Events that
occur just prior to a power outage may be lost depending on whether they were backed-up
or not.
The contents of the event log can be viewed using the meter programming software.
The following events may be configured for recording in the D/T/L Register Event Log:
Clear Billing Data—billing data has been cleared upon initialization of the meter, or as
a secondary activity by authorized personnel
Configuration Error—meter configuration was not successful
Demand Reset—a demand reset occurred
Draft