MTConnectDevices_1.2.xsd

<?xml version="1.0" encoding="UTF-8"?>
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BY AMT, MTCONNECT OR ANY PARTICIPANT TO YOU OR ANY PARTY ARE PROVIDED "AS IS"
AND WITHOUT ANY WARRANTY OF ANY KIND. AMT, MTCONNECT, AND EACH OF THEIR
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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="urn:mtconnect.org:MTConnectDevices:1.2" xmlns:mt="urn:mtconnect.org:MTConnectDevices:1.2" targetNamespace="urn:mtconnect.org:MTConnectDevices:1.2" elementFormDefault="qualified" attributeFormDefault="unqualified">
	<xs:element name="MTConnectDevices" type="MTConnectDevicesType">
		<xs:annotation>
			<xs:documentation>
        The root node for MTConnect
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:simpleType name="SenderType">
		<xs:annotation>
			<xs:documentation>
        The sender of the message
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="CreationTimeType">
		<xs:annotation>
			<xs:documentation>
        The date and time the document was created
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:dateTime"/>
	</xs:simpleType>
	<xs:simpleType name="SequenceType">
		<xs:annotation>
			<xs:documentation>
        A sequence number
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:integer">
			<xs:minInclusive value="1"/>
			<xs:maxExclusive value="18446744073709551615"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="TestIndicatorType">
		<xs:annotation>
			<xs:documentation>
        A debugging flag for testing.
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:boolean"/>
	</xs:simpleType>
	<xs:simpleType name="InstanceIdType">
		<xs:annotation>
			<xs:documentation>
        The instance number of the agent, used for fault tolerance
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:integer">
			<xs:minInclusive value="1"/>
			<xs:maxExclusive value="18446744073709551615"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="BufferSizeType">
		<xs:annotation>
			<xs:documentation>
        The size of the agents buffer
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:integer">
			<xs:minInclusive value="1"/>
			<xs:maxExclusive value="4294967295"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="TimestampType">
		<xs:annotation>
			<xs:documentation>
        The time the sample was reported
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:dateTime"/>
	</xs:simpleType>
	<xs:simpleType name="OccurrenceTimeType">
		<xs:annotation>
			<xs:documentation>
        The time a sample occurred
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:dateTime"/>
	</xs:simpleType>
	<xs:simpleType name="VersionType">
		<xs:annotation>
			<xs:documentation>
        A version number
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:NMTOKEN"/>
	</xs:simpleType>
	<xs:simpleType name="NameType">
		<xs:annotation>
			<xs:documentation>
        A short name for any element
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="UuidType">
		<xs:annotation>
			<xs:documentation>
        A universally unique id that uniquely identifies the element for
        it&apos;s entire life
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="SerialNumberType">
		<xs:annotation>
			<xs:documentation>
        A serial number for a piece of equipment
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="ItemSourceType">
		<xs:annotation>
			<xs:documentation>
        The measurement source
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="RateType">
		<xs:annotation>
			<xs:documentation>
        A sample rate in milliseconds per sample
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:float"/>
	</xs:simpleType>
	<xs:simpleType name="ComponentIdType">
		<xs:annotation>
			<xs:documentation>
        The id of the component (maps to the id from probe)
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:ID"/>
	</xs:simpleType>
	<xs:simpleType name="IDType">
		<xs:annotation>
			<xs:documentation>
        An identifier
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:ID"/>
	</xs:simpleType>
	<xs:simpleType name="SignificantDigitsValueType">
		<xs:annotation>
			<xs:documentation>
        The number significant digits
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:integer"/>
	</xs:simpleType>
	<xs:simpleType name="AssetIdType">
		<xs:annotation>
			<xs:documentation>
        The unique id of the asset
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="AssetAttrType">
		<xs:annotation>
			<xs:documentation>
        An asset type
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="AssetBufferSizeType">
		<xs:annotation>
			<xs:documentation>
        The maximum number of assets
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:integer">
			<xs:minInclusive value="1"/>
			<xs:maxExclusive value="4294967295"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="AssetCountAttrType">
		<xs:annotation>
			<xs:documentation>
        The number of assets
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:integer">
			<xs:minInclusive value="0"/>
			<xs:maxExclusive value="4294967295"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="DescriptionTextType">
		<xs:annotation>
			<xs:documentation>
        A description
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="DataItemExtType">
		<xs:annotation>
			<xs:documentation>
        An extension point for data item types
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:pattern value="[a-ln-z]:[A-Z_0-9]+"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="DataItemStatsExtType">
		<xs:annotation>
			<xs:documentation>
        An extension point for data item statistics types
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:pattern value="[a-ln-z]:[A-Z_0-9]+"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="DataItemEnumTypeEnum">
		<xs:annotation>
			<xs:documentation>
        The types of measurements available
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:enumeration value="ACCELERATION"/>
			<xs:enumeration value="ACTIVE_AXES"/>
			<xs:enumeration value="ALARM"/>
			<xs:enumeration value="AMPERAGE"/>
			<xs:enumeration value="ANGLE"/>
			<xs:enumeration value="ANGULAR_ACCELERATION"/>
			<xs:enumeration value="ANGULAR_VELOCITY"/>
			<xs:enumeration value="AVAILABILITY"/>
			<xs:enumeration value="AXIS_FEEDRATE"/>
			<xs:enumeration value="BLOCK"/>
			<xs:enumeration value="CODE"/>
			<xs:enumeration value="DIRECTION"/>
			<xs:enumeration value="DOOR_STATE"/>
			<xs:enumeration value="EMERGENCY_STOP"/>
			<xs:enumeration value="EXECUTION"/>
			<xs:enumeration value="FREQUENCY"/>
			<xs:enumeration value="PART_COUNT"/>
			<xs:enumeration value="PART_ID"/>
			<xs:enumeration value="PATH_FEEDRATE"/>
			<xs:enumeration value="PATH_POSITION"/>
			<xs:enumeration value="PATH_MODE"/>
			<xs:enumeration value="LINE"/>
			<xs:enumeration value="CONTROLLER_MODE"/>
			<xs:enumeration value="LOAD"/>
			<xs:enumeration value="MESSAGE"/>
			<xs:enumeration value="POSITION"/>
			<xs:enumeration value="POWER_STATUS"/>
			<xs:enumeration value="POWER_STATE"/>
			<xs:enumeration value="PRESSURE"/>
			<xs:enumeration value="RESET"/>
			<xs:enumeration value="PROGRAM"/>
			<xs:enumeration value="ROTARY_MODE"/>
			<xs:enumeration value="COUPLED_AXES"/>
			<xs:enumeration value="AXIS_COUPLING"/>
			<xs:enumeration value="SPINDLE_SPEED"/>
			<xs:enumeration value="TEMPERATURE"/>
			<xs:enumeration value="TORQUE"/>
			<xs:enumeration value="TOOL_ASSET_ID"/>
			<xs:enumeration value="TOOL_ID"/>
			<xs:enumeration value="TOOL_NUMBER"/>
			<xs:enumeration value="VELOCITY"/>
			<xs:enumeration value="VIBRATION"/>
			<xs:enumeration value="VOLTAGE"/>
			<xs:enumeration value="WATTAGE"/>
			<xs:enumeration value="WORKHOLDING_ID"/>
			<xs:enumeration value="ACCUMULATED_TIME"/>
			<xs:enumeration value="ACTUATOR_STATE"/>
			<xs:enumeration value="ASSET_CHANGED"/>
			<xs:enumeration value="CONCENTRATION"/>
			<xs:enumeration value="CONDUCTIVITY"/>
			<xs:enumeration value="DISPLACEMENT"/>
			<xs:enumeration value="ELECTRICAL_POWER"/>
			<xs:enumeration value="FILL_LEVEL"/>
			<xs:enumeration value="FLOW"/>
			<xs:enumeration value="LINEAR_FORCE"/>
			<xs:enumeration value="MASS"/>
			<xs:enumeration value="PH"/>
			<xs:enumeration value="POWER_FACTOR"/>
			<xs:enumeration value="RESISTANCE"/>
			<xs:enumeration value="ROTARY_VELOCITY"/>
			<xs:enumeration value="SOUND_PRESSURE"/>
			<xs:enumeration value="STRAIN"/>
			<xs:enumeration value="TILT"/>
			<xs:enumeration value="VOLT_AMPERE"/>
			<xs:enumeration value="VOLT_AMPERE_REACTIVE"/>
			<xs:enumeration value="WATT_SECOND"/>
			<xs:enumeration value="VISCOSITY"/>
			<xs:enumeration value="COMMUNICATIONS"/>
			<xs:enumeration value="LOGIC_PROGRAM"/>
			<xs:enumeration value="MOTION_PROGRAM"/>
			<xs:enumeration value="HARDWARE"/>
			<xs:enumeration value="SYSTEM"/>
			<xs:enumeration value="LEVEL"/>
			<xs:enumeration value="ACTUATOR"/>
			<xs:enumeration value="CLOCK_TIME"/>
			<xs:enumeration value="PALLET_ID"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="DataItemEnumType">
		<xs:annotation>
			<xs:documentation>
        The types of measurements available
      </xs:documentation>
		</xs:annotation>
		<xs:union memberTypes="DataItemEnumTypeEnum DataItemExtType"/>
	</xs:simpleType>
	<xs:simpleType name="DataItemSubEnumTypeEnum">
		<xs:annotation>
			<xs:documentation>
        The sub-types for a measurement
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:enumeration value="ACTUAL"/>
			<xs:enumeration value="COMMANDED"/>
			<xs:enumeration value="MAXIMUM"/>
			<xs:enumeration value="MINIMUM"/>
			<xs:enumeration value="OTHER"/>
			<xs:enumeration value="OVERRIDE"/>
			<xs:enumeration value="PROBE"/>
			<xs:enumeration value="TARGET"/>
			<xs:enumeration value="GOOD"/>
			<xs:enumeration value="BAD"/>
			<xs:enumeration value="ALL"/>
			<xs:enumeration value="LINE"/>
			<xs:enumeration value="CONTROL"/>
			<xs:enumeration value="ALTERNATING"/>
			<xs:enumeration value="DIRECT"/>
			<xs:enumeration value="WEIGHT"/>
			<xs:enumeration value="VOLUME"/>
			<xs:enumeration value="MOLE"/>
			<xs:enumeration value="KINETIC"/>
			<xs:enumeration value="DYNAMIC"/>
			<xs:enumeration value="NO_SCALE"/>
			<xs:enumeration value="A_SCALE"/>
			<xs:enumeration value="B_SCALE"/>
			<xs:enumeration value="C_SCALE"/>
			<xs:enumeration value="D_SCALE"/>
			<xs:enumeration value="LINEAR"/>
			<xs:enumeration value="ROTARY"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="DataItemSubEnumType">
		<xs:annotation>
			<xs:documentation>
        The sub-types for a measurement
      </xs:documentation>
		</xs:annotation>
		<xs:union memberTypes="DataItemSubEnumTypeEnum DataItemExtType"/>
	</xs:simpleType>
	<xs:simpleType name="DataItemStatisticsTypeEnum">
		<xs:annotation>
			<xs:documentation>
        Statistical operations on data
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:enumeration value="MINIMUM"/>
			<xs:enumeration value="MAXIMUM"/>
			<xs:enumeration value="AVERAGE"/>
			<xs:enumeration value="STANDARD_DEVIATION"/>
			<xs:enumeration value="ROOT_MEAN_SQUARE"/>
			<xs:enumeration value="MEAN"/>
			<xs:enumeration value="MODE"/>
			<xs:enumeration value="RANGE"/>
			<xs:enumeration value="KURTOSIS"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="DataItemStatisticsType">
		<xs:annotation>
			<xs:documentation>
        Statistical operations on data
      </xs:documentation>
		</xs:annotation>
		<xs:union memberTypes="DataItemStatisticsTypeEnum DataItemStatsExtType"/>
	</xs:simpleType>
	<xs:simpleType name="UnitsExtType">
		<xs:annotation>
			<xs:documentation>
        An extension point for data item types
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:pattern value="x:[A-Z_0-9]+"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="UnitsTypeEnum">
		<xs:annotation>
			<xs:documentation>
        The units supported
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:enumeration value="AMPERE"/>
			<xs:enumeration value="CELSIUS"/>
			<xs:enumeration value="COUNT"/>
			<xs:enumeration value="DEGREE"/>
			<xs:enumeration value="DEGREE/SECOND"/>
			<xs:enumeration value="DEGREE/SECOND^2"/>
			<xs:enumeration value="HERTZ"/>
			<xs:enumeration value="JOULE"/>
			<xs:enumeration value="KILOGRAM"/>
			<xs:enumeration value="LITER"/>
			<xs:enumeration value="LITER/SECOND"/>
			<xs:enumeration value="MILLIMETER"/>
			<xs:enumeration value="MILLIMETER/SECOND"/>
			<xs:enumeration value="MILLIMETER/SECOND^2"/>
			<xs:enumeration value="MILLIMETER_3D"/>
			<xs:enumeration value="NEWTON"/>
			<xs:enumeration value="NEWTON_METER"/>
			<xs:enumeration value="PASCAL"/>
			<xs:enumeration value="PERCENT"/>
			<xs:enumeration value="PH"/>
			<xs:enumeration value="REVOLUTION/MINUTE"/>
			<xs:enumeration value="SECOND"/>
			<xs:enumeration value="VOLT"/>
			<xs:enumeration value="WATT"/>
			<xs:enumeration value="OHM"/>
			<xs:enumeration value="SOUND_LEVEL"/>
			<xs:enumeration value="SIEMENS/METER"/>
			<xs:enumeration value="MICRO_RADIAN"/>
			<xs:enumeration value="PASCAL_SECOND"/>
			<xs:enumeration value="VOLT_AMPERE"/>
			<xs:enumeration value="VOLT_AMPERE_REACTIVE"/>
			<xs:enumeration value="WATT_SECOND"/>
			<xs:enumeration value="DECIBEL"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="UnitsType">
		<xs:annotation>
			<xs:documentation>
        The units supported
      </xs:documentation>
		</xs:annotation>
		<xs:union memberTypes="UnitsTypeEnum UnitsExtType"/>
	</xs:simpleType>
	<xs:simpleType name="NativeUnitsTypeEnum">
		<xs:annotation>
			<xs:documentation>
        The units supported for the source equipment that can be converted into
        MTC Units.
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:enumeration value="AMPERE"/>
			<xs:enumeration value="CELSIUS"/>
			<xs:enumeration value="COUNT"/>
			<xs:enumeration value="DEGREE"/>
			<xs:enumeration value="DEGREE/SECOND"/>
			<xs:enumeration value="DEGREE/SECOND^2"/>
			<xs:enumeration value="HERTZ"/>
			<xs:enumeration value="JOULE"/>
			<xs:enumeration value="KILOGRAM"/>
			<xs:enumeration value="LITER"/>
			<xs:enumeration value="LITER/SECOND"/>
			<xs:enumeration value="MILLIMETER"/>
			<xs:enumeration value="MILLIMETER/SECOND"/>
			<xs:enumeration value="MILLIMETER/SECOND^2"/>
			<xs:enumeration value="MILLIMETER_3D"/>
			<xs:enumeration value="NEWTON"/>
			<xs:enumeration value="NEWTON_METER"/>
			<xs:enumeration value="PASCAL"/>
			<xs:enumeration value="PERCENT"/>
			<xs:enumeration value="PH"/>
			<xs:enumeration value="REVOLUTION/MINUTE"/>
			<xs:enumeration value="SECOND"/>
			<xs:enumeration value="VOLT"/>
			<xs:enumeration value="WATT"/>
			<xs:enumeration value="OHM"/>
			<xs:enumeration value="SOUND_LEVEL"/>
			<xs:enumeration value="SIEMENS/METER"/>
			<xs:enumeration value="MICRO_RADIAN"/>
			<xs:enumeration value="PASCAL_SECOND"/>
			<xs:enumeration value="VOLT_AMPERE"/>
			<xs:enumeration value="VOLT_AMPERE_REACTIVE"/>
			<xs:enumeration value="WATT_SECOND"/>
			<xs:enumeration value="DECIBEL"/>
			<xs:enumeration value="CENTIPOISE"/>
			<xs:enumeration value="DEGREE/MINUTE"/>
			<xs:enumeration value="FAHRENHEIT"/>
			<xs:enumeration value="FOOT"/>
			<xs:enumeration value="FOOT/MINUTE"/>
			<xs:enumeration value="FOOT/SECOND"/>
			<xs:enumeration value="FOOT/SECOND^2"/>
			<xs:enumeration value="FOOT_3D"/>
			<xs:enumeration value="GALLON/MINUTE"/>
			<xs:enumeration value="INCH"/>
			<xs:enumeration value="INCH/MINUTE"/>
			<xs:enumeration value="INCH/SECOND"/>
			<xs:enumeration value="INCH/SECOND^2"/>
			<xs:enumeration value="INCH_3D"/>
			<xs:enumeration value="KILOWATT"/>
			<xs:enumeration value="KILOWATT_HOUR"/>
			<xs:enumeration value="MILLIMETER/MINUTE"/>
			<xs:enumeration value="OTHER"/>
			<xs:enumeration value="POUND"/>
			<xs:enumeration value="POUND/INCH^2"/>
			<xs:enumeration value="RADIAN"/>
			<xs:enumeration value="RADIAN/MINUTE"/>
			<xs:enumeration value="RADIAN/SECOND"/>
			<xs:enumeration value="RADIAN/SECOND^2"/>
			<xs:enumeration value="REVOLUTION/SECOND"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="NativeUnitsType">
		<xs:annotation>
			<xs:documentation>
        The units supported for the source equipment that can be converted into
        MTC Units.
      </xs:documentation>
		</xs:annotation>
		<xs:union memberTypes="NativeUnitsTypeEnum UnitsExtType"/>
	</xs:simpleType>
	<xs:simpleType name="CoordinateSystemType">
		<xs:annotation>
			<xs:documentation>
        The coordinate system to be used for the position
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:enumeration value="MACHINE"/>
			<xs:enumeration value="WORK"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="AssetCountValueType">
		<xs:annotation>
			<xs:documentation>
        The number of assets
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:integer">
			<xs:minInclusive value="0"/>
			<xs:maxExclusive value="4294967295"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:complexType name="AssetCountsType">
		<xs:annotation>
			<xs:documentation>
        The number of assets by type
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element name="AssetCount" type="AssetCountType" minOccurs="1" maxOccurs="unbounded">
				<xs:annotation>
					<xs:documentation>
            The number of assets for a given type
          </xs:documentation>
				</xs:annotation>
			</xs:element>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="AssetCountType">
		<xs:annotation>
			<xs:documentation>
        The count of assets for a certain type
      </xs:documentation>
		</xs:annotation>
		<xs:simpleContent>
			<xs:extension base="AssetCountValueType">
				<xs:attribute name="assetType" type="AssetAttrType" use="required"/>
			</xs:extension>
		</xs:simpleContent>
	</xs:complexType>
	<xs:complexType name="HeaderType">
		<xs:annotation>
			<xs:documentation>
        Message header for protocol information
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element name="AssetCounts" type="AssetCountsType" minOccurs="0" maxOccurs="1">
				<xs:annotation>
					<xs:documentation>
            The asset statistics
          </xs:documentation>
				</xs:annotation>
			</xs:element>
		</xs:sequence>
		<xs:attribute name="version" type="VersionType" use="required"/>
		<xs:attribute name="creationTime" type="CreationTimeType" use="required"/>
		<xs:attribute name="testIndicator" type="TestIndicatorType" use="optional"/>
		<xs:attribute name="instanceId" type="InstanceIdType" use="required"/>
		<xs:attribute name="sender" type="SenderType" use="required"/>
		<xs:attribute name="bufferSize" type="BufferSizeType" use="required"/>
		<xs:attribute name="assetBufferSize" type="AssetBufferSizeType" use="required"/>
		<xs:attribute name="assetCount" type="AssetCountAttrType" use="required"/>
	</xs:complexType>
	<xs:complexType name="MTConnectDevicesType">
		<xs:annotation>
			<xs:documentation>
        The root node for MTConnect
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element name="Header" type="HeaderType">
				<xs:annotation>
					<xs:documentation>
            Protocol dependent information
          </xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element name="Devices" type="DevicesType">
				<xs:annotation>
					<xs:documentation>
            The equipment
          </xs:documentation>
				</xs:annotation>
			</xs:element>
		</xs:sequence>
	</xs:complexType>
	<xs:simpleType name="StationType">
		<xs:annotation>
			<xs:documentation>
        The station id for this device
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="Iso841ClassType">
		<xs:annotation>
			<xs:documentation>
        The ISO 841 classification for the device
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:integer"/>
	</xs:simpleType>
	<xs:simpleType name="ModelType">
		<xs:annotation>
			<xs:documentation>
        The model name
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:complexType name="DevicesType">
		<xs:annotation>
			<xs:documentation>
        The top level components
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element name="Device" type="DeviceType" minOccurs="1" maxOccurs="unbounded">
				<xs:annotation>
					<xs:documentation>
            A piece of equipment
          </xs:documentation>
				</xs:annotation>
			</xs:element>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="ComponentType" abstract="true">
		<xs:annotation>
			<xs:documentation>
        An abstract component type. This is a placeholder for all components
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element name="Description" type="ComponentDescriptionType" minOccurs="0" maxOccurs="1">
				<xs:annotation>
					<xs:documentation>
            The descriptive information about this component
          </xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element name="Configuration" type="ComponentConfigurationType" minOccurs="0" maxOccurs="1">
				<xs:annotation>
					<xs:documentation>
            The configuration information about this component
          </xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element name="DataItems" type="DataItemsType" minOccurs="0" maxOccurs="1">
				<xs:annotation>
					<xs:documentation>
            The component&apos;s Data Items
          </xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element name="Components" type="ComponentsType" minOccurs="0" maxOccurs="1">
				<xs:annotation>
					<xs:documentation>
            The sub components
          </xs:documentation>
				</xs:annotation>
			</xs:element>
		</xs:sequence>
		<xs:attribute name="id" type="IDType" use="required"/>
		<xs:attribute name="name" type="NameType" use="required"/>
		<xs:attribute name="nativeName" type="NameType" use="optional"/>
		<xs:attribute name="sampleInterval" type="SampleIntervalType" use="optional"/>
		<xs:attribute name="sampleRate" type="SampleRateType" use="optional"/>
	</xs:complexType>
	<xs:element name="Component" type="ComponentType" abstract="true">
		<xs:annotation>
			<xs:documentation>
        An abstract component type. This is a placeholder for all components
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="ComponentDescriptionType" mixed="true">
		<xs:annotation>
			<xs:documentation>
        The descriptive information for this component. This can be manufacturer
        specific
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:any processContents="lax" minOccurs="0" maxOccurs="unbounded">
				<xs:annotation>
					<xs:documentation>
            Any desciptive schema like calibration
          </xs:documentation>
				</xs:annotation>
			</xs:any>
		</xs:sequence>
		<xs:attribute name="manufacturer" type="NameType" use="optional"/>
		<xs:attribute name="model" type="ModelType" use="optional"/>
		<xs:attribute name="serialNumber" type="SerialNumberType" use="optional"/>
		<xs:attribute name="station" type="StationType" use="optional"/>
	</xs:complexType>
	<xs:complexType name="AbstractConfigurationType" abstract="true">
		<xs:annotation>
			<xs:documentation>
        Abstract configuration
      </xs:documentation>
		</xs:annotation>
	</xs:complexType>
	<xs:element name="AbstractConfiguration" type="AbstractConfigurationType" abstract="true">
		<xs:annotation>
			<xs:documentation>
        Abstract configuration
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="ComponentConfigurationType" mixed="true">
		<xs:annotation>
			<xs:documentation>
        The configuration data associated with this component. For example,
        sensors may use 1451.5 or TEDS
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element ref="AbstractConfiguration" minOccurs="0" maxOccurs="1"/>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="CommonComponentType">
		<xs:annotation>
			<xs:documentation>
        An abstract component that has an optional uuid
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="ComponentType">
				<xs:attribute name="uuid" type="UuidType" use="optional"/>
			</xs:extension>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="CommonComponent" type="CommonComponentType" substitutionGroup="Component">
		<xs:annotation>
			<xs:documentation>
        An abstract component that has an optional uuid
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="ComponentsType">
		<xs:annotation>
			<xs:documentation>
        A list of generic components
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element ref="Component" minOccurs="1" maxOccurs="unbounded"/>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="DeviceType">
		<xs:annotation>
			<xs:documentation>
        The top level component managed by the agent
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="ComponentType">
				<xs:attribute name="iso841Class" type="Iso841ClassType" use="optional"/>
				<xs:attribute name="uuid" type="UuidType" use="required"/>
			</xs:extension>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Device" type="DeviceType" substitutionGroup="Component">
		<xs:annotation>
			<xs:documentation>
        The top level component managed by the agent
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="ControllerType">
		<xs:annotation>
			<xs:documentation>
        A controller
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="CommonComponentType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Controller" type="ControllerType" substitutionGroup="CommonComponent">
		<xs:annotation>
			<xs:documentation>
        A controller
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="PowerType">
		<xs:annotation>
			<xs:documentation>
        DEPRECATED: A power measuring component
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="CommonComponentType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Power" type="PowerType" substitutionGroup="CommonComponent">
		<xs:annotation>
			<xs:documentation>
        DEPRECATED: A power measuring component
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="SensorType">
		<xs:annotation>
			<xs:documentation>
        A sensor, this is not abstract to allow for easy extensibility.
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="CommonComponentType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Sensor" type="SensorType" substitutionGroup="CommonComponent">
		<xs:annotation>
			<xs:documentation>
        A sensor, this is not abstract to allow for easy extensibility.
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="PathType">
		<xs:annotation>
			<xs:documentation>
        A path component
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="CommonComponentType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Path" type="PathType" substitutionGroup="CommonComponent">
		<xs:annotation>
			<xs:documentation>
        A path component
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="ActuatorType">
		<xs:annotation>
			<xs:documentation>
        A component that causes motion
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="CommonComponentType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Actuator" type="ActuatorType" substitutionGroup="CommonComponent">
		<xs:annotation>
			<xs:documentation>
        A component that causes motion
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="DoorType">
		<xs:annotation>
			<xs:documentation>
        A door on the machine
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="CommonComponentType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Door" type="DoorType" substitutionGroup="CommonComponent">
		<xs:annotation>
			<xs:documentation>
        A door on the machine
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:simpleType name="CalibrationDateType">
		<xs:annotation>
			<xs:documentation>
        The time the calibration was preformed
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:date"/>
	</xs:simpleType>
	<xs:simpleType name="NextCalibrationDateType">
		<xs:annotation>
			<xs:documentation>
        The time the next calibration should be preformed
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:date"/>
	</xs:simpleType>
	<xs:simpleType name="CalibrationInitialsType">
		<xs:annotation>
			<xs:documentation>
        The initials of the person doing the calibration
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="FirmwareVersionType">
		<xs:annotation>
			<xs:documentation>
        The firmware version of this sensor
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="ChannelNumberType">
		<xs:annotation>
			<xs:documentation>
        The channel number
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:integer"/>
	</xs:simpleType>
	<xs:complexType name="SensorConfigurationType">
		<xs:annotation>
			<xs:documentation>
        Calibration data for a sensor
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="AbstractConfigurationType">
				<xs:sequence>
					<xs:element name="FirmwareVersion" type="FirmwareVersionType">
						<xs:annotation>
							<xs:documentation>
                The firmware version
              </xs:documentation>
						</xs:annotation>
					</xs:element>
					<xs:element name="CalibrationDate" type="CalibrationDateType" minOccurs="0" maxOccurs="1">
						<xs:annotation>
							<xs:documentation>
                The date and time the sensor was calibrated
              </xs:documentation>
						</xs:annotation>
					</xs:element>
					<xs:element name="NextCalibrationDate" type="NextCalibrationDateType" minOccurs="0" maxOccurs="1">
						<xs:annotation>
							<xs:documentation>
                The date and time the sensor was calibrated
              </xs:documentation>
						</xs:annotation>
					</xs:element>
					<xs:element name="CalibrationInitials" type="CalibrationInitialsType" minOccurs="0" maxOccurs="1">
						<xs:annotation>
							<xs:documentation>
                The initials of the person who calibrated this sensor
              </xs:documentation>
						</xs:annotation>
					</xs:element>
					<xs:element name="Channels" type="ChannelsType" minOccurs="0" maxOccurs="1">
						<xs:annotation>
							<xs:documentation>
                The sensor channels
              </xs:documentation>
						</xs:annotation>
					</xs:element>
				</xs:sequence>
			</xs:extension>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="SensorConfiguration" type="SensorConfigurationType" substitutionGroup="AbstractConfiguration">
		<xs:annotation>
			<xs:documentation>
        Calibration data for a sensor
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="ChannelsType">
		<xs:annotation>
			<xs:documentation>
        A collection of channel calibration data
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element name="Channel" type="ChannelType" minOccurs="1" maxOccurs="unbounded">
				<xs:annotation>
					<xs:documentation>
            A calabration channel
          </xs:documentation>
				</xs:annotation>
			</xs:element>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="ChannelType">
		<xs:annotation>
			<xs:documentation>
        The calibration channel
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element name="Description" type="DescriptionTextType" minOccurs="0" maxOccurs="1">
				<xs:annotation>
					<xs:documentation>
            A text description of the channel
          </xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element name="CalibrationDate" type="CalibrationDateType" minOccurs="0" maxOccurs="1">
				<xs:annotation>
					<xs:documentation>
            The date and time the sensor was calibrated
          </xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element name="NextCalibrationDate" type="NextCalibrationDateType" minOccurs="0" maxOccurs="1">
				<xs:annotation>
					<xs:documentation>
            The date and time the sensor was calibrated
          </xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element name="CalibrationInitials" type="CalibrationInitialsType" minOccurs="0" maxOccurs="1">
				<xs:annotation>
					<xs:documentation>
            The initials of the person who calibrated this sensor
          </xs:documentation>
				</xs:annotation>
			</xs:element>
		</xs:sequence>
		<xs:attribute name="number" type="ChannelNumberType" use="required"/>
		<xs:attribute name="name" type="NameType" use="optional"/>
	</xs:complexType>
	<xs:complexType name="AxesType">
		<xs:annotation>
			<xs:documentation>
        A logical group of Axes representing a structural base
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="CommonComponentType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Axes" type="AxesType" substitutionGroup="CommonComponent">
		<xs:annotation>
			<xs:documentation>
        A logical group of Axes representing a structural base
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="AxisType" abstract="true">
		<xs:annotation>
			<xs:documentation>
        A abstract machine axis
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="CommonComponentType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Axis" type="AxisType" abstract="true" substitutionGroup="CommonComponent">
		<xs:annotation>
			<xs:documentation>
        A abstract machine axis
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="LinearType">
		<xs:annotation>
			<xs:documentation>
        A linear axis
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="AxisType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Linear" type="LinearType" substitutionGroup="Axis">
		<xs:annotation>
			<xs:documentation>
        A linear axis
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="RotaryType">
		<xs:annotation>
			<xs:documentation>
        A rotary axis that moves in a rotational manor
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="AxisType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Rotary" type="RotaryType" substitutionGroup="Axis">
		<xs:annotation>
			<xs:documentation>
        A rotary axis that moves in a rotational manor
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="SpindleType">
		<xs:annotation>
			<xs:documentation>
        DEPRECATED: A spindle axis that spins
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="AxisType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Spindle" type="SpindleType" substitutionGroup="Axis">
		<xs:annotation>
			<xs:documentation>
        DEPRECATED: A spindle axis that spins
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="SystemsType">
		<xs:annotation>
			<xs:documentation>
        A grouping of all the systems of the device
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="CommonComponentType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Systems" type="SystemsType" substitutionGroup="CommonComponent">
		<xs:annotation>
			<xs:documentation>
        A grouping of all the systems of the device
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="SystemType">
		<xs:annotation>
			<xs:documentation>
        A logical group of parts representing sub-system of the device
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="CommonComponentType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="System" type="SystemType" substitutionGroup="CommonComponent">
		<xs:annotation>
			<xs:documentation>
        A logical group of parts representing sub-system of the device
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="PneumaticType">
		<xs:annotation>
			<xs:documentation>
        A component representing the pneumatic system
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="SystemType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Pneumatic" type="PneumaticType" substitutionGroup="System">
		<xs:annotation>
			<xs:documentation>
        A component representing the pneumatic system
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="HydraulicType">
		<xs:annotation>
			<xs:documentation>
        A component representing the hydraulic system
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="SystemType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Hydraulic" type="HydraulicType" substitutionGroup="System">
		<xs:annotation>
			<xs:documentation>
        A component representing the hydraulic system
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="LubricationType">
		<xs:annotation>
			<xs:documentation>
        A component representing the lubrication system
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="SystemType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Lubrication" type="LubricationType" substitutionGroup="System">
		<xs:annotation>
			<xs:documentation>
        A component representing the lubrication system
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="CoolantType">
		<xs:annotation>
			<xs:documentation>
        A component representing the coolant system
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="SystemType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Coolant" type="CoolantType" substitutionGroup="System">
		<xs:annotation>
			<xs:documentation>
        A component representing the coolant system
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="ElectricType">
		<xs:annotation>
			<xs:documentation>
        A component representing the coolant system
      </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="SystemType"/>
		</xs:complexContent>
	</xs:complexType>
	<xs:element name="Electric" type="ElectricType" substitutionGroup="System">
		<xs:annotation>
			<xs:documentation>
        A component representing the coolant system
      </xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:simpleType name="SampleIntervalType">
		<xs:annotation>
			<xs:documentation>
        The interval between adjacent sampleing of data
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:float"/>
	</xs:simpleType>
	<xs:simpleType name="SampleRateType">
		<xs:annotation>
			<xs:documentation>
        The frequency a measurement is sampled
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:float"/>
	</xs:simpleType>
	<xs:simpleType name="DataItemOptionType">
		<xs:annotation>
			<xs:documentation>
        The constrained value for this data item
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="DataItemValueType">
		<xs:annotation>
			<xs:documentation>
        The constrained value for this data item
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string"/>
	</xs:simpleType>
	<xs:simpleType name="SourceComponentIdType">
		<xs:annotation>
			<xs:documentation>
        An idref to the component id
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:IDREF"/>
	</xs:simpleType>
	<xs:simpleType name="SourceDataItemIdType">
		<xs:annotation>
			<xs:documentation>
        An idref to the data item id
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:IDREF"/>
	</xs:simpleType>
	<xs:simpleType name="CategoryType">
		<xs:annotation>
			<xs:documentation>
        The measurement sampling type
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:enumeration value="EVENT"/>
			<xs:enumeration value="SAMPLE"/>
			<xs:enumeration value="CONDITION"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:simpleType name="NativeScaleType">
		<xs:annotation>
			<xs:documentation>
        The multiplier for the native value. Conversion divides by this value
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:float"/>
	</xs:simpleType>
	<xs:simpleType name="RepresentationType">
		<xs:annotation>
			<xs:documentation>
        The possible representations of a DataItem
      </xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:enumeration value="VALUE"/>
			<xs:enumeration value="TIME_SERIES"/>
		</xs:restriction>
	</xs:simpleType>
	<xs:complexType name="DataItemsType">
		<xs:annotation>
			<xs:documentation>
        A generic list of measurements for all axis
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element name="DataItem" type="DataItemType" minOccurs="1" maxOccurs="unbounded">
				<xs:annotation>
					<xs:documentation>
            A measurement for this component
          </xs:documentation>
				</xs:annotation>
			</xs:element>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="DataItemType">
		<xs:annotation>
			<xs:documentation>
        A abstract measurement
      </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element name="Source" type="SourceType" minOccurs="0" maxOccurs="1">
				<xs:annotation>
					<xs:documentation>
            Additional information about the component, channel, register,
            etc... that collects the data.
          </xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element name="Constraints" type="DataItemLimitsType" minOccurs="0" maxOccurs="1">
				<xs:annotation>
					<xs:documentation>
            Limits on the set of possible values
          </xs:documentation>
				</xs:annotation>
			</xs:element>
		</xs:sequence>
		<xs:attribute name="name" type="NameType" use="optional"/>
		<xs:attribute name="id" type="IDType" use="required"/>
		<xs:attribute name="type" type="DataItemEnumType" use="required"/>
		<xs:attribute name="subType" type="DataItemSubEnumType" use="optional"/>
		<xs:attribute name="statistic" type="DataItemStatisticsType" use="optional"/>
		<xs:attribute name="units" type="UnitsType" use="optional"/>
		<xs:attribute name="nativeUnits" type="NativeUnitsType" use="optional"/>
		<xs:attribute name="nativeScale" type="NativeScaleType" use="optional"/>
		<xs:attribute name="category" type="CategoryType" use="required"/>
		<xs:attribute name="coordinateSystem" type="CoordinateSystemType" use="optional"/>
		<xs:attribute name="sampleRate" type="SampleRateType" use="optional"/>
		<xs:attribute name="representation" type="RepresentationType" use="optional" default="VALUE"/>
		<xs:attribute name="significantDigits" type="SignificantDigitsValueType" use="optional"/>
	</xs:complexType>
	<xs:complexType name="DataItemLimitsType">
		<xs:annotation>
			<xs:documentation>
        A set of limits for a data item
      </xs:documentation>
		</xs:annotation>
		<xs:choice minOccurs="1">
			<xs:sequence minOccurs="1">
				<xs:element name="Value" type="DataItemValueElementType" minOccurs="1" maxOccurs="unbounded">
					<xs:annotation>
						<xs:documentation>
              An possible value for this data item. Used for controlled
              vocabularies.
            </xs:documentation>
					</xs:annotation>
				</xs:element>
			</xs:sequence>
			<xs:sequence minOccurs="1">
				<xs:element name="Minimum" type="DataItemValueType">
					<xs:annotation>
						<xs:documentation>
              A minimum value for this data item.
            </xs:documentation>
					</xs:annotation>
				</xs:element>
				<xs:element name="Maximum" type="DataItemValueType">
					<xs:annotation>
						<xs:documentation>
              A maximum value for this data item.
            </xs:documentation>
					</xs:annotation>
				</xs:element>
			</xs:sequence>
		</xs:choice>
	</xs:complexType>
	<xs:complexType name="DataItemValueElementType">
		<xs:annotation>
			<xs:documentation>
        The value element
      </xs:documentation>
		</xs:annotation>
		<xs:simpleContent>
			<xs:extension base="DataItemOptionType"/>
		</xs:simpleContent>
	</xs:complexType>
	<xs:complexType name="SourceType">
		<xs:annotation>
			<xs:documentation>
        A native data source
      </xs:documentation>
		</xs:annotation>
		<xs:simpleContent>
			<xs:extension base="ItemSourceType">
				<xs:attribute name="componentId" type="SourceComponentIdType" use="optional"/>
				<xs:attribute name="dataItemId" type="SourceDataItemIdType" use="optional"/>
			</xs:extension>
		</xs:simpleContent>
	</xs:complexType>
</xs:schema>