Doc
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E149701
B-37
B: Modbus Map and Retrieving Logs
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Frequency (Calibrated at 60 Hz) 60
Frequency (Calibrated at 50 Hz) 50
Power Factor
1.0
THD, Harmonics
100.0%
Angles
180°
• To interpret a limit alarm fully, you need both the start and end record (for dura-
tion).
• There are a few special conditions related to limits:
• When the meter powers up, it detects limits from scratch. This means that
multiple "out of limit" records can be in sequence with no "into limit" records.
Cross- reference the System Events for Power Up events.
• This also means that if a limit is "out," and it goes back in during the
power off condition, no "into limit" record will be recorded.
• The "worst" value of the "into limit" record follows the above restrictions;
it only represents the values since power up. Any values before the power
up condition are lost.
Historical Log Record:
Size
: 6+2 x N bytes (12+2 x N bytes), where N is the number of registers stored.
Data
: The Historical Log Record data is 2 x N bytes, which contains snapshots of the
values of the associated registers at the time the record was taken. Since the meter
uses specific registers to log, with no knowledge of the data it contains, the Program-
mable Settings need to be used to interpret the data in the record. See Historical Logs
Programmable Settings for details.
Byte
0
1
2
3
4
5
6
-
-
N
Value
timestamp
values . . .
Summary of Contents for Shark 200
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