Superclass (is-a): PartChange

PartChange.Request

Definition: operating state of the requestcommunications method where a client transmits a message to an agent. That message instructs the agent to respond with specific information. to change the part or product associated with a piece of equipment to a different part or product.

Version Info

Introduced	Deprecated	Updated
1.3

Inherited from `PartChange`

Properties

Name	Type	Int	Multiplicity	Description
`compositionId`	`ID`	1.4	0..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`	`ID`	1.3	1	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`	`string`	1.3	0..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`	`integer`	1.3	1	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`	`DataItemSubTypeEnum`	1.3	0..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`	`datetime`	1.3	1	most accurate time available to a piece of equipment that represents the point in time that the data reported was measured.
`type`	«abstract» `DataItemTypeEnum`	1.3	1	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`	`UnitEnum`	1.3	0..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`)	1.3	1	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`	`string`	1.3	0..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" } ]`
`resetTriggered`	`ResetTriggeredEnum`	1.4	0..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`	`EventEnum`	1.3	1
`type`	`InterfaceEventEnum` (Only: `PART_CHANGE`)	1.3	1
`subType`	`DataItemSubTypeEnum`	1.3	1	The `subType` MUST be specified

Properties

Name	Type	Int	Dep	Multiplicity	Description
`subType`	`DataItemSubTypeEnum` (Default: `REQUEST`)	1.3		1	An unspecified `subType` MUST default to `REQUEST`.
`result`	`RequestStateEnum`	1.3		0..1