Superclass (is-a): Thickness

Thickness.Actual

Definition: dimension between two surfaces of an object, usually the dimension of smallest measure, for example an additive layer, or a depth of cut. that is reported value of an observationobserved value of a property at a point in time...

Version Info

IntroducedDeprecatedUpdated
2.4  

Inherited from Thickness

Properties

NameTypeIntDepMultiplicityDescription
compositionId ID2.40..1 identifier of the «abstract» Composition entity defined in the MTConnectDevices Response Documentresponse document published by an MTConnect Agent in response to a probe request. associated with the data reported for the Observation.
dataItemId ID2.41

unique identifier of the DataItem associated with this Observation.

Observation::dataItemId MUST match the associated DataItem::id defined in the MTConnectDevices Response Documentresponse document published by an MTConnect Agent in response to a probe request..

name string2.40..1

name of the DataItem associated with this Observation.

Observation::name MUST match the associated DataItem::name defined in the MTConnectDevices Response Documentresponse document published by an MTConnect Agent in response to a probe request..

sequence integer2.41

number representing the sequential position of an occurrence of an observationobserved value of a property at a point in time. in the data buffer of an agentsoftware that collects data published from one or more piece(s) of equipment, organizes that data in a structured manner, and responds to requests for data from client software systems by providing a structured response in the form of a response document that is constructed using the semantic data model of a Standard. .

Observation::sequence MUST have a value represented as an unsigned 64-bit value from 1 to \(2^{64}-1\).

subType DataItemSubTypeEnum2.40..1

subtype of the DataItem associated with this Observation.

Observation::subType MUST match the associated DataItem::subType defined in the MTConnectDevices Response Documentresponse document published by an MTConnect Agent in response to a probe request..

timestamp datetime2.41 most accurate time available to a piece of equipment that represents the point in time that the data reported was measured.
type «abstract» DataItemTypeEnum2.41

type of the DataItem associated with this Observation.

Observation::type MUST match the associated DataItem::type defined in the MTConnectDevices Response Documentresponse document published by an MTConnect Agent in response to a probe request..

units UnitEnum2.40..1

units of the DataItem associated with this Observation.

Observation::units MUST match the associated DataItem::units defined in the MTConnectDevices Response Documentresponse document published by an MTConnect Agent in response to a probe request..

isUnavailable boolean (Default: true)2.41

when true, Observation::result is indeterminate.

Note 1 to entry: In XML, when isUnavailable is true, the XML CDATA of the Observation MUST be UNAVAILABLE. ```xml

<Execution dataItemId=”…” …>UNAVAILABLE</Execution>


> Note 2 to entry: In *JSON*, when `isUnavailable` is `true`, the *JSON* `value` of the `Observation` **MUST** be `UNAVAILABLE`.
```json
  "Execution" : [ { "dataItemId": "..." ..., "value": "UNAVAILABLE" } ]
result string2.40..1

observationobserved value of a property at a point in time. of the Observation entity.

The default value type for Observation::result is string.

Note 1 to entry: in XML the Observation::result is the CDATA of the Observation elementconstituent part or a basic unit of identifiable and definable data..

<Execution dataItemId="..." ...>READY</Execution>

Note 2 to entry: in JSON the Observation::result is the member value of the Observation object.

"Execution" : [ { "dataItemId": "..." ..., "value": "READY" } ]
quality QualityEnum (Default: UNVERIFIABLE)2.50..1 indicates if the Observation is verifiable and is in accordance with the normative definitions within the MTConnect Standard.
deprecated boolean (Default: false)2.50..1 indicates if the Observation has any property or controlled vocabulary that has been deprecated in the MTConnect Standard.
extended boolean (Default: false)2.50..1 indicates if the Observation has any property or controlled vocabulary that has been extended and cannot be validated.
resetTriggered ResetTriggeredEnum2.40..1

identifies when a reported value has been reset and what has caused that reset to occur for those DataItem entities that may be periodically reset to an initial value.

resetTriggered MUST only be provided for the specific occurrence of a DataItem reported in the MTConnectStreams Response Documentresponse document published by an MTConnect Agent in response to a current request or a sample request. when the reset occurred.

type EventEnum2.41
type EventEnum (Only: THICKNESS)2.41
subType DataItemSubTypeEnum (Default: ACTUAL)2.41 An unspecified subType MUST default to ACTUAL.
result float2.40..1

Properties

NameTypeIntDepMultiplicityDescription
subType DataItemSubTypeEnum (Only: ACTUAL)2.41

Back to top

Copyright © 2017-2026 Association for Manufacturing Technology (AMT). All rights reserved. MTConnect® is a trademark of AMT. Terms of Use.

MTConnect SysML Model V2.8