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subfields.yaml
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subfields.yaml
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# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the License);
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an AS IS BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
aggregation:
average: "Average value; the arithmetic mean of a set of numeric values (e.g., average_zone_air_temperature_sensor is a spatial aggregation of multiple zone temperature sensors)."
max: "Maximum value; the largest value in a set of numeric values. Can be used for spatial (e.g., max_zone_air_co2_concentration_sensor) or temporal (e.g., tenminutefixed_max_xaxis_frequency_sensor) aggregations."
min: "Minimum value; the smallest value in a set of numeric values. Can be used for spatial (e.g., min_zone_air_relative_humidity_sensor) or temporal (e.g., fivesecondrolling_min_xaxis_linearacceleration_sensor) aggregations."
rootmeansquare: "Square root of the mean square (quadratic mean); measures the magnitude of a set of values."
total: "Sum total of some set of values (e.g. total_request_heating_count)"
aggregation_descriptor:
fivesecondrolling: "Aggregation over advancing time intervals of five seconds."
thirtysecondrolling: "Aggregation over advancing thirty second time interval."
tenminutefixed: "Aggregation over fixed time intervals of ten minutes."
component:
battery: "A device used to store power for use at a later time (e.g., in an emergency where grid power is unavailable)."
bearing: "Machine element that constrains relative motion to only the desired motion and reduces friction between moving parts."
cable: "A length of wire, sometimes shielded externally, used for some purpose (e.g., steel braided wire for tensile support, CAT5 cable for communications)."
circuitbreaker: "An electrical safety device designed to protect an electrical circuit from damage by short circuit or overload."
coil: "Component that exchanges heat between two media streams."
compressor: "Component which drives refrigerant compression (and thus cooling processes) within a device or system."
condenser: "The component of a refrigeration system that condenses refrigerant through the removal of heat (i.e., refrigerant vapor is condensed into liquid through the removal of heat)."
controller: "Control loop, such as a PID controller."
cooler: "Device used to cool product or media (e.g., walk-in food cooler)."
damper: "Component which meters the flow of air within a system or device."
dehumidifier: "Device used to dehumidify air (typically though the removal of heat from the air)."
device: "The core equipment being represented by the Field groupings."
dial: "Adjustment device (e.g., setpoint dial)."
dimmer: "A device which can reduce lighting output of a lamp (thus 'dimming' the light)."
dishwasher: "Device that washes dishes."
dryer: "A component used for drying clothes."
evaporator: "The component of a refrigeration system that evaporates refrigerant by adding heat (i.e., refrigerant liquid evaporates into vapor when heat from the surrounding air/water is transferred to it)."
fan: "Component used for the distribution of air."
filter: "Component used for removing dust and other particulate matter from the air."
guidevane: "Control vanes that meter refrigerant (on a centrifugal chiller) or air (on an AHU)."
generator: "Component that converts motive power into electric power for use in an external circuit."
heater: "Component which provides heat to media (typically through the combustion of gas or electric resistance)."
humidifier: "Component which humidifies (typically by adding water vapor to the air)."
inverter: "Device or circuitry that changes direct current to alternating current (e.g., variable frequency drive)."
lamp: "The component of a lighting device that emits the light."
louver: "A device comprising multiple blades that regulates the flow of air."
luminaire: "Complete lighting unit, consisting of one or more lamps, their socket/holders, wiring and optics such as lenses and reflectors to distribute the light."
motor: "A machine, especially one powered by electricity or internal combustion, that supplies motive power for a vehicle or for some other device with moving parts."
pump: "Component used for the distribution of liquid media (e.g., water, glycol)."
rectifier: "Component that converts alternating current to direct current."
riser: "A central (typically vertical) supply pipe or duct that distributes media (e.g., water, air) to multiple floors of a building."
scrubber: "An equipment that is used to remove harmful materials from exhaust air before they are released into the environment"
shade: "Window covering (typically used to regulate the amount of sunlight coming through the window)."
switch: "Component to disrupt an electrical cirucit."
tank: "Storage device for media; for example, a thermal storage tank in a heating water system."
transformer: "An electrical device which, by the principles of electromagnetic induction, transfers electrical energy from one electric circuit to another."
valve: "Component which meters the flow of water within a system or device."
vane: "Component for guiding media (e.g., water, air) flow in a specific direction."
wheel: "Component used for transfer of heat from incoming to outgoing air streams (i.e., a heat wheel in a DOAS unit)."
winding: "Conductive wires wrapped around a magnetic core."
descriptor:
air: "Atmospheric air, either conditioned or unconditioned."
aisle: "Passage between two rows of server racks."
ac: "Electric charge which periodically reverses direction and changes its magnitude continuously with time."
ammonia: "Ammonia gas."
blowdown: "Process of expelling water filled with mineral deposits for the purposes of water treatment."
blue: "Blue light fracture of ambient light."
boost: "The amplification of a object or media; for example, a booster pump is used to increase the speed of the water flowing through it."
broken: "A state of disrepair; fractured or segmented."
building: "Applies to the entire building or group of zones within building (e.g., building_air_static_pressure_sensor)."
bypass: "Route which fluid takes to bypass a process."
calendar: "A system structured around the days, weeks, and the months, used to manage schedules."
call: "An action of speaking or meeting among multiple people."
carbon: "Nonmetallic chemical element with the atomic number of six (e.g., graphite)."
changeover: "Connecting to a different equipment circuit (e.g., switching between chiller and hot water)."
chilled: "Cold water (typically 40 - 50F)."
cie: "Abbreviation for the International Commission on Illumination (CIE light color schema)."
circulation: "Process or component used to circulate fluid through a device or system; for exmaple, a circulation pump onboard a boiler."
co: "Chemical formula and abbreviation for carbon monoxide."
co2: "Chemical formula and abbreviation for carbon dioxide."
cogeneration: "The process of generating both thermal heat and electricity."
cold: "Used to describe something at a low (or relatively low) temperature."
color: "Physical perceptual property of light deriving from the electromagnetic spectrum."
common: "Aggregate or collective measurement of substance coming from multiple sources."
communication: "Actual transmit and recieve of data or connectivity between devices."
condensate: "Liquid that acculates on surfaces as a byproduct of condensation (i.e., water vapor condensing into liquid)"
condensing: "The process of a gas (or vapor) changing to liquid."
conditioning: "Treatment of a medium."
conference: "An instance of speaking or meeting among multiple people."
control: "The process of governing the actions of a device."
cooling: "Process, measured effect or requirement for cooling."
dc: "Abbreviation for direct current, which is a one-directional flow of electric charge."
defrost: "De-freezing ice from a surface."
dehumidification: "Process of removing moisture from air."
detection: "Process of identifying conditions."
detergent: "Water-soluble cleansing agent."
direction: "Direction in which particular entity is moving or is present."
discharge: "Media leaving system to enter ambient conditioned space. Typically applies only to air-side systems."
diverting: "Controlling the flow of fluids or gases by diverting the flow from one pathway to another."
drain: "Media drained from system; typically applied to water-side system "
dutycycle: "The fraction of one period in which a signal or system is active."
east: "Cardinal direction; opposite of west."
economizer: "Process or component responsible for the utilization of free cooling."
electric: "Process or component driven by electricity (as to distinguish from natural gas, for instance)."
electricalgrid: "An interconnected network for electricity delivery from producers to consumers."
electrostatic: "Attractive or repulsive forces between particles that are caused by their electric charges."
email: "A unique identifier address in the Internet."
emergency: "An situation that poses an immediate risk to health, life, property, or environment."
entering: "The process of going into a thing (e.g., water entering a heat exchanger)."
evaporative: "Process associated with the evaporation of water or other media (i.e. a liquid turning into a vapor)."
event: "A thing of occasion that happens."
exchange: "The act of giving somethng and receiving something else; for example, the transfer of heat from one fluid stream to another."
exercise: "Mode of running equipment to maintain functionality ('exercise mode')."
exhaust: "Process or component used in the removal of air from a conditioned system to the outside atmosphere."
fabric: "Textile material."
failed: "Indicates that a point is not operating as intended or is incapable of operating."
filtration: "Process of filtering contaminating elements from equipment or a system."
fire: "The combustion or burning of substances with the potential to cause physical damage."
floor: "Lower surface of a room or zone."
flue: "Chimney for conveying exhaust gas."
formaldehyde: "A simple, pungent organic compound (gas under standard conditions), simplest of the aldehydes."
frost: "The byproduct of freezing (i.e., liquid water turning into a solid on a surface)."
## TODO: make it so gas only has one meaning
gas: "Process or component driven by natural gas (as to distinguish from electric)."
glycol: "Liquid mixture consisting of glycol and water; typically used to increase the heat transfer abilities of traditional water."
green: "Green light fracture of ambient light"
ground: "The solid surface of the earth."
group: "A set of entities or devices"
guide: "To direct the course or movement of a media; for example, a vane is used to guide the flow of air."
h2: "Chemical formula and abbreviation for hydrogen."
h2s: "Chemical formula and abbreviation for hydrogen sulfide."
hash: "A computed value that is converted from an original value."
heat: "Quality of media indicating energy level."
heating: "Process, measured effect or requirement for heating."
high: "Level of control or measurement; above medium and low; opposite of low."
hot: "Used to describe something at a high (or relatively high) temperature."
hsl: "Abbreviation for hue, saturation, and lightness; typically used in light color control."
humidification: "Process of adding moisture to air."
id: "An identification or identifier."
inlet: "Area of media entrance."
inhibit: "Prohibit from executing a function or starting an operation."
input: "The input to a system."
intensity: "The relative magnitude or strength of something (i.e., high_intensity_* indicates something is strong or forceful)."
inter: "Represents something in between references (e.g. average_inter_line_voltage, the average voltage between lines)."
isolation: "Process of isolating one component or process from another."
leak: "Media leaving the system abnormally."
leaving: "Area where media leaves process."
lighting: "Illumination of a room."
limit: "A boundary condition for a control (e.g., low limit)."
line: "Refers to the incoming electrical feed (e.g., line current)."
liquid: "A state of matter that flows and takes the form of its container, but which changes its volume very little with changes in pressure."
load: "Electrical load which indicates the consumption of electrical power."
local: "A definite spatial location involving only a subset of the larger surrounding area."
loop: "Recirculating loop."
low: "Level of control or measurement; below medium and high; opposite of high."
maintenance: "Status of a device out of order."
makeup: "Process of adding (\"making-up\") water that has been lost due to blowdown or evaporation."
manufacturer: "The company which produces the asset or device."
matched: "A collection of things that are put together as being equal, similar, or complementary."
master: "Highest priority (or primary control) device, sensor, etc."
medium: "Level of control or measurement; between high and low."
message: "A communication sent to or left for a recipient."
mixed: "Process or component used to mix multiple streams of air."
mixing: "Process of mixing substance."
model: "Particular design version of an asset (e.g. model_label)."
neutral: "Line in the electrical cirucit which carries current back to the source. Distinct from ground."
next: "Something that occurs directly in time after the present or most recent one."
"no": "Chemical formula and abbreviation for nitrogen monoxide, which is a colorless gas and a toxic air pollutant."
no2: "Chemical formula and abbreviation for nitrogen dioxide."
north: "Cardinal direction; opposite of south"
occupancy: "State of being occupied."
occupied: "State of being within scheduled (time of day or week) run-time parameters."
oil: "A viscous liquid derived from petroleum, especially for use as a fuel or lubricant."
ongoing: "Hapenning currently, right now."
output: "The output of a control loop (e.g. PID loop output)."
outside: "Process or measurement of local atmospheric conditions."
over: "Refering to exceeding the required or expected"
overload: "An electrical load that exceeds available electrical power."
override: "An action that interrupts, cancels, or changes the current action or status."
ozone: "Highly reactive gaseous compound comprised of three oxygen atoms."
panel: "An interface to control a device."
particle: "A very fine clump of solid matter."
phase: "A phase of three-phase power distribution systems."
phase1: "The first (nominally A) phase of three-phase power distribution systems."
phase2: "The second (nominally B) phase of three-phase power distribution systems."
phase3: "The third (nominally C) phase of three-phase power distribution systems."
photocatalyst: "a material that uses absorbed light energy (usually UV) to drive desired reactions that would not otherwise proceed under ambient conditions"
pm0pt5: "Particulate of diameter 0.5 micrometers or less."
pm1pt0: "Particulate of diameter 1.5 micrometers or less."
pm2pt5: "Particulate of diameter 2.5 micrometers or less."
pm4pt0: "Particulate of diameter 4.0 micrometers or less."
pm10pt0: "Particulate of diameter 10.0 micrometers or less."
potable: "Used to describe water that is of high enough quality and is safe for human consumption."
preheating: "Process of heating media before another process; for example, outside air is pre-heated before being discharged to the space."
pressurization: "Relating to the level of pressure in a system or vessel."
primary: "Associated with the primary (production) loop of a production process."
process: "Act of processing."
production: "The loop in a system that is responsible for the conditioning of fluid."
program: "Embedded, encoded instructions for the automatic performance of a task; typically within a controller."
protection: "Act of preventing damage to object."
purge: "The act of removing impurities or contaminants from a space or system during particular phases of operation. For example, when purging a zone during morning warm up using additional ventilation air."
rain: "Liquid water in the form of droplets that have condensed from atmospheric water vapor."
recovery: "Component or process used for the reclamation of heat."
red: "Red light fracture of ambient light."
release: "To free from constraints (e.g., to release the door from its magnetic lock)."
refrigerant: "Substance used in the mechanical refrigeration process (e.g., R-134a)"
remaining: "The amount of something that is left at some point in a process (e.g., the remaining charge a battery has left)."
request: "A signal from a system device that calls for more of a particular conditioning process (e.g., pressure requests from terminal units)."
return: "Measurement or process of media as it is returned from the end-use equipment within the system."
reversing: "Reverses direction of flow (e.g., the reversing valve on a heat pump changes the direction that the refrigerant flows around the circuit)."
room: "A space that can be occupied, or a part or division of a building or floor enclosed by walls."
scene: "The holistic ambience achieved from coordinated control of an area's lighting levels and colors. One of many stored setpoints that may be recalled to apply predetermined lighting levels across a number of fixtures."
schedule: "Refers to the time-of-day run-time requirements for the equipment."
season: "Weather conditions under which certain systems or processes are enabled."
secondary: "Associated with the secondary (distribution) loop of a produciton process."
seismic: "Related to seismic activity (such as seismic gas shutoff valves)."
side: "Position relative to an an object."
signal: "An electric current or electromagnetic field used to convey data from one device to another."
smoke: "Visible, suspended particles created during a fire."
so2: "Chemical formula and abbreviation for sulfur dioxide."
source: "The upstream source of thermal heat (typically used for heat exchangers)."
source1: "Redundant power source 1 provision typically for an automatic transfer switch (ATS)."
source2: "Redundant power source 2 provision typically for an automatic transfer switch (ATS)."
south: "Cardinal direction; opposite of north"
southeast: "Inter-cardinal direction between South and East."
southwest: "Inter-cardinal direction between South and West."
spray: "Stream of (typically water) vapor that is blown through the air."
stage: "Discrete step (i.e., stage) of device activity (such as heating and cooling outputs)."
startup: "Event of engaging a device or equipment."
steam: "The gaseous form of water (i.e., water vapor) that is created through heating liquid water."
strength: "Relative quality and/or intensity."
suction: "The production of a partial vacuum in order to force fluid into a vacant space (such as refrigerant in a compressor)."
summer: "Method or process used during warmer weather (i.e., summer season)."
supervisor: "A program that controls a device from a supervisory (i.e., remote or external) level."
supply: "Measurement or process of media as it is supplied to the end-use equipment within the system."
suppression: "The act of preventing something. For example, a range of fire-fighting tactics used to suppress fire."
standby: "A state of waiting to secure an unreserved place for a journey or performance, allocated on the basis of earliest availability."
sweeper: "Action performed in a sump to prevent sediment build-up via water turbulence."
sync: "The simultaneous operation or activity of two or more things."
tamper: "To interfere with (something, eg. a device) in order to cause damage or make unauthorized alterations."
tertiary: "Associated with the tertiary (peripheral) loops of a production process."
totaldissolvedsolids: "Total dissolved solids (TDS) is the amount of minerals, metals, organic material and salts that are dissolved in a certain water volume."
transducer: "A device that converts energy from one form to another (e.g., sound energy to electrical energy in a microphone, electrical energy to sound energy in a speaker)."
ultraviolet: "A short wavelength type of light that is beyond the visible spectrum. It is damaging to DNA and cells, and is commonly used to sterilize surfaces."
unoccupied: "State of being outside of scheduled (time of day or week) run-time parameters."
use: "A descriptor for how the entity in question is used (e.g., zone_use_label = 'office')."
user: "A person who uses or operates something."
vapor: "A substance in the gas phase at a temperature lower than its critical temperature."
ventilation: "Process used to provide fresh (typically atmospheric) air into a system or zone."
voc: "Abbreviation for volatile organic componds, which are groups of chemicals emitted by many household objects like furniture and paint."
water: "Water in liquid form, conditioned or unconditioned."
west: "Cardinal direction; opposite of east"
wind: "Movement of ambient air."
window: "Transparent part of the facade"
winter: "Method or process used during colder weather (i.e. winter season)."
wireless: "Devices capable of communication wirelessly through electromagnetic fields.(e.g., wireless_sensors)."
xaxis: "Horizontal axis of a three-dimensional Cartesian coordinate system (i.e., abscissa)."
yaxis: "Horizontal axis of a three-dimensional Cartesian coordinate system (i.e., ordinate)."
zaxis: "Vertical axis of a three-dimensional Cartesian coordinate system (i.e., applicate)."
zone: "Region of building which is conditioned."
measurement:
acceleration: "The rate of change of velocity per unit of time."
angle: "The figure formed by two rays, sharing a common endpoint."
angularmomentum: "The quantity of rotation of a body, which is the product of its moment of inertia and its angular velocity."
aqi: "Abbreviation for air quality index, which is a set of special standard gradings for the pollution in air."
area: "Amount of space within the perimeter of a two-dimensional shape."
concentration: "Concentration of something relative to something else (usually in parts per million or parts per billion)."
current: "Flow of electric charge."
currentratio: "The ratio of primary amps divided by secondary amps."
density: "Amount of mass contained in a unit volume."
diameter: "A straight line passing from side to side through the center of a body or figure, especially a circle or sphere."
distance: "The length of the space between two points."
electriccapacitance: "The ratio of the change in an electric charge in a system to the corresponding change in its electric potential."
electricconductance: "The degree to which an object conducts electricity, calculated as the ratio of the current which flows to the potential difference present."
electricconductivity: "The degree to which a specified material conducts electricity, calculated as the ratio of the current density in the material to the electric field which causes the flow of current."
electriccurrentdensity: "The amount of electric current flowing per unit cross-sectional area of a material."
electricfield: "A region around a charged particle or object within which a force would be exerted on other charged particles or objects."
electricinductance: "The property of an electric conductor or circuit that causes an electromotive force to be generated by a change in the current flowing."
electricphasedifference: "The angular difference by which a wave leads by or lags by another wave."
electricfieldstrength: "Quantitative expression of the intensity of an electric field at a particular location."
electricresistivity: "A measure of the resisting power of a specified material to the flow of an electric current."
energy: "The quantitative property that must be transferred to an object to perform work (default electrical unless otherwise modified)."
energydensity: "The amount of energy stored in a given system, substance, or region of space per unit volume."
entropy: "A thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work."
flowrate: "Rate of fluid movement."
force: "An influence tending to change the motion of a body or produce motion or stress in a stationary body."
frequency: "The rate of cycling within a process. Typically used to describe voltage (and amperage) oscillation within AC power distribution components."
humidity: "Concentration of water vapor in air (conditioned or unconditioned)."
illuminance: "Measurement of light."
impulse: "A force acting briefly on a body and producing a finite change of momentum."
irradiance: "The flux of radiant energy per unit area (normal to the direction of flow of radiant energy through a medium)."
length: "The measurement or extent of something from end to end."
level: "The height of something with regard to a datum (e.g. the water level of a tank relative to the bottom)."
linearacceleration: "Time rate of change of linear velocity."
linearvelocity: "The rate of change of displacement with respect to time. For example, wind speed represents the linear velocity of the wind."
luminance: "The intensity of light emitted from a surface per unit area in a given direction."
luminousflux: "Measure of the perceived power of light."
luminousintensity: "Measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle."
magneticflux: "Surface integral of the normal component of the magnetic field over a surface."
magneticinduction: "Vector field that wdescribes the magnetic influence on moving electric charges, electric currents and magnetic materials."
magneticmoment: "Measure of the magnetic strength of a magnet or current-carrying coil, expressed as the torque produced when the magnet or coil is set with its axis perpendicular to unit magnetic flux density."
mass: "The quantity of matter which a body contains, as measured by its acceleration under a given force or by the force exerted on it by a gravitational field."
massconcentration: "Concentration by mass (e.g., grams per kilogram)."
massflow: "Movement of fluids down a pressure or temperature gradient."
obscuration: "Degree of shading."
percentage: "Measurement per hundred."
powerfactor: "Ratio of real and apparent power."
power: "Rate of energy consumption (assumed context is electrical and real, unless otherwise modified)."
powerflux: "Energy emitted, reflected, transmitted or received per unit time."
pressure: "Measured force per unit area within a system or process."
#pressurechange: "Change of pressure per temperature." # TODO (tsodorff): find an alternative name once a use case arises
rate: "ratio of change compared to a step or time."
resistance: "Electrical resistance."
rotationalvelocity: "Vector measure of rotation rate, that refers to how fast an object rotates or revolves relative to another point."
specificenergy: "Energy per unit mass."
specificenthalpy: "Measure of energy of air per unit mass."
soundpressurelevel: "Logarithmic measure of the sound intensity in comparison to a reference value (1e10-12 W/m^2)."
temperature: "Measures the temperature of media within a process or system."
thermalconductivity: "Measure of a material's ability to conduct heat."
thermalcapacity: "Amount of heat to be supplied to an object to produce a unit change in its temperature."
thermaltransmittance: "Rate of transfer of heat through matter. "
time: "Defined duration of something."
timetemperature: "Integral of temperature over time."
torque: "A force that causes rotation around an axis."
voltage: "Electrical potential difference between two reference points."
voltageratio: "The ratio of the Primary voltage of the transformer to the secondary voltage."
volume: "The quantity of three-dimensional space contained by a closed surface."
volumetricconcentration: "Concentration in terms of volume (measured in parts per unit volume)."
xvalue: "X-value of a matrix."
yvalue: "Y-value of a matrix."
measurement_descriptor:
absolute: "Quality of media with respect to non-relativistic boudaries (e.g., absolute temperature)."
apparent: "The combination of reactive and real components (power)."
brightness: "Giving out or reflecting light; overall level of light in a space."
charge: "The state of power storage (e.g., charged, not charged, discharged)"
closed: "Indicates full closed (typically used for two-position actuators)."
condensation: "The change of the state of matter from the gas phase into the liquid phase."
deadband: "Represents a range in which the controller does not do anything."
dewpoint: "The thermodynamic point at which water condenses from standing air."
differential: "Measured difference between two reference points (e.g. differential_water_pressure)"
down: "The direction of a spatial movement, opposite of up."
efficiency: "The ratio of required input to actual output. "
end: "Indicates a final part of something, especially a period of time."
extent: "The range over which something has spread."
fade: "Descending change of a value (e.g., lighting fade)."
hue: "Number on a color wheel from 0 to 360°."
lost: "Indicates that a point has lost some quality or quantity inadvertently."
match: "A function that matches something against others."
motion: "Detectable movement of a thing."
index: "An integer which indicates the location of a particular data point in a list or numbered set (e.g., index 1 of ['a','b','c'] would return 'b', assuming the indexing starts at 0)."
offset: "The amount or distance by which something is deviating from some threshold or baseline."
open: "Indicates full open (for two-position actuators). This is the default sense if unspecified."
operating: "State when a device is active."
orientation: "Description of cardinal direction."
position: "A particular way in which something is placed or arranged, such as a door in the open position."
probability: "The extent to which something is probable; the likelihood of something happening or being the case."
reactive: "Power that is returned to the source (i.e., not consumed by the load)."
relative: "Quality of media with respect to theoretical minimum or maximum value for a given condition (e.g., relative humidity)."
run: "State of being active or operating. By default applies to control program for system (e.g., VAV program run_command)."
saturation: "Point at which no more of a material can be absorbed into another material."
speed: "Numeric setting of how fast to run a device, in the specified units. Typically used to describe revolutions of a motor as a fraction of nominal or maximum."
start: "Indicates a point in time or space at which something has its origin or beginning."
static: "Describing a system in equilibrium or at rest (e.g., supply_air_static_pressure_sensor)."
subcooling: "The amount a liquid is cooled below its saturation point."
superheat: "The amount a gas is heated above its boiling point wihtout vaporization."
test: "A procedure intended to establish the quality, performance, or reliability of something, especially before it is taken into widespread use."
thermal: "Relating to the transfer of heat."
tilt: "Degree of radial rotation."
up: "The direction of a spatial movement, opposite of down."
wetbulb: "Describes air temperature measured at 100% relative humidity (saturation)."
point_type:
accumulator: "The total accumulated quantity (e.g., total energy accumulated)."
alarm: "A point that interprets some input values qualitatively (e.g., as good or bad, normal or in alarm, etc.). Alarms are always binary."
capacity: "A design parameter quantity (e.g., design motor power capacity). Is always a maximum limit."
counter: "Special case of accumulator that assumes integer values and non-dimensional units. For example, the field message_counter increments in integers whenever a message is sent."
command: "The signal given to make an action happen. Defaults to multistate unless used alongside a measurement_type."
count: "Total count of actions or requests."
label: "Identifying alias for component or system."
mode: "Distinct mode of operation within system. For example economizer_mode has modes of 'enabled' or 'disabled.'"
requirement: "A lower limit design parameter (e.g., minimum flowrate requirement). Is always a lower limit."
sensor: "Component used to measure some quality of a system or process. In some instances, it can be feedback for an analog command (e.g., speed_percentage_sensor is the feedback from speed_percentage_command)."
setpoint: "Control target of process or system."
status: "The multistate value indicating an observed state in a piece of equipment, often indicating if a command was effected. It is a neutral observation (i.e., no quality judgment of 'good' or 'bad'). It also has no units of measurement; therefore, if combined with a measurement subfield, it will indicate that the field is the directional status based on some measurement of that type (e.g., power_status equates to an on/off value based on some inference of power)."
specification: "The specified design value for a particular operating condition (e.g., differential pressure specification)."
timestamp: "An instant in time, represented as a numeric offset from the epoch."