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© 2011 Schneider Electric. All Rights Reserved.
PowerLogic
TM
Series 800 Power Meter 63230-500-225A2
Chapter 7—Logging 3/2011
58
Memory Allocation for Log Files
Each file in the power meter has a maximum memory size. Memory is not shared between
the different logs, so reducing the number of values recorded in one log will not allow more
values to be stored in a different log. The following table lists the memory allocated to each
log:
Alarm Log
By default, the power meter can log the occurrence of any alarm condition. Each time an
alarm occurs it is entered into the alarm log. The alarm log in the power meter stores the
pickup and dropout points of alarms along with the date and time associated with these
alarms. You select whether the alarm log saves data as first-in-first-out (FIFO) or fill and
hold. With PowerLogic software, you can view and save the alarm log to disk, and reset the
alarm log to clear the data out of the power meter’s memory.
Alarm Log Storage
The power meter stores alarm log data in non-volatile memory. The size of the alarm log is
fixed at 100 records.
Maintenance Log
The power meter stores a maintenance log in non-volatile memory. The file has a fixed
record length of four registers and a total of 40 records. The first register is a cumulative
counter over the life of the power meter. The last three registers contain the date/time of
when the log was updated. Table 7–4 describes the values stored in the maintenance log.
These values are cumulative over the life of the power meter and cannot be reset.
NOTE: Use PowerLogic software to view the maintenance log.
Table 7–3: Memory Allocation for Each Log
Log Type
Max. Records
Stored
Max. Register
Values Recorded
Storage
(Bytes)
Power Meter
Model
Alarm Log 100 11 2,200 All models
Maintenance Log 40 4 320 All models
Billing Log 5000 96 + 3 D/T 65,536
PM810 with
PM810LOGPM820
PM850
PM870
Data Log 1 1851 96 + 3 D/T 14,808
PM810 with
PM810LOGPM820
PM850
PM870
Data Log 2 5000 96 + 3 D/T 393,216
PM850
PM870
Data Log 3 5000 96 + 3 D/T 393,216
PM850
PM870
Data Log 4 32,000 96 + 3 D/T 393,216
PM850
PM870