Both report types may have one or many variables. Each variable has its own sampling characteristics. GRIDlink proposes the report contents and send frequency, but ultimately sends reports as specified by the VTN. The only exception to this is where server_post_max forces more frequent posts to the VTN.

Should a report have a minimum sample period of 4 seconds and a maximum sample period of 1 minute. If the value does not change, the item will be sent every 60 seconds regardless of other recorded items. The value is sampled once every 4 seconds and will be sent immediately if it changes.

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Load Path: /nvram/gridlink/usage_report.config
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Reading Types 

== Item Types (from oadr_power_20b.xsd) ==

voltage   Voltage

energyApparent   Apparent Energy, measured in volt-ampere hours (VAh)

energyReactive   Reactive Energy, volt-amperes reactive hours (VARh)

energyReal   Real Energy, Watt Hours (Wh)

powerApparent   Apparent Power measured in volt-amperes (VA)

powerReactive   Reactive power, measured in volt-amperes reactive (VAR)

powerReal   power measured in Watts (W) or Joules/second (J/s)

== Reading Types (from oadr_ei_20b.xsd) ==

Direct Read   Reading is read from a device that increases monotonically, and usage must be computed from pairs of start and stop readings.

Net   Meter or [resource] prepares its own calculation of total use over time.

Allocated   Meter covers several [resources] and usage is inferred through some sort of pro data computation.

Estimated   Used when a reading is absent in a series in which most readings are present.

Summed   Several meters together provide the reading for this [resource]. This is specifically a different than aggregated, which refers to multiple [resources] in the same payload. See also Hybrid.
Derived   Usage is inferred through knowledge of run-time, normal operation, etc.

Mean   Reading is the mean value over the period indicated in Granularity

Peak   Reading is Peak (highest) value over the period indicated in granularity. For some measurements, it may make more sense as the lowest value. May not be consistent with aggregate readings. Only valid for flow-rate Item Bases, i.e., Power not Energy.
Hybrid   If aggregated, refers to different reading types in the aggregate number.

Contract   Indicates reading is pro forma, i.e., is reported at agreed upon rates

Projected   Indicates reading is in the future, and has not yet been measured.

x-RMS   Root Mean Square

x-notApplicable   Not Applicable

Each configuration line contains the following items, separated by commas. ie 1,Meter,output_energy,energyReal,Direct Read,0,1,0,32767,0,1000,m,1,30,1,60,480,1

id   Unique integer ID of the measurement

name   Description of the measurement

item_type   One of voltage, energyApparent, energyReactive, energyReal, powerApparent, powerReactive, powerReal. See Item Types, below.

reading_type   One of Direct Read, Net, Allocated, Estimated, Summed, Derived, Mean, Peak, Hybrid, Contract, Projected, x-RMS, x-notApplicable. See Reading Types, below.

iotype   I/O type read.

0  Analog Input (signed 16 bits)
1  Analog Output (signed 16 bits)
10 Discrete Input
11 Discrete Output
20 Long Input (signed 32 bits)
21 Long Output (signed 32 bits)
22 Float Input (32 bits)
23 Float Output (32 bits)

register   register number to read.

raw_min   almost always zero

raw_max  32767 for signed 16 bits / 65534 for all 32 bits I/O Types

eng_min   almost always zero

eng_max   Scaling parameters for the specified register value.

scalecode   Magnitude of the measurement.

p Pico 10^-12
n Nano 10^-9
micro Micro 10^-6
m Milli 10^-3
c Centi 10^-2
d Deci 10^-1
k Kilo 10^3
M Mega 10^6
G Giga 10^9
T Tera 10^12
none Native Scale

min_period   Sample rate in seconds

max_period   Record rate in seconds  ie 5 min data = 60

onchange   Set to 0 or 1.

If 0, record every min_period.
If 1, scan at min_period, record on change, record at least every max_period.

hz   integer indicating AC frequency, usually 50 or 60 (optional)

voltage   integer, such as 120, 240, 480 (optional)

ac   1 or 0, indicates values are in AC (optional)