This ObjectType can be used to define the structure of a Device. Figure 10 shows the DeviceType. It is formally defined in Table 29.
Table 29 – DeviceType definition
|
Attribute |
Value |
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|
BrowseName |
DeviceType |
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|
IsAbstract |
True |
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|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Other |
|
Subtype of the ComponentType defined in 4.6 |
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|
|
|
|
|
||
|
HasInterface |
ObjectType |
ISupportInfoType |
Defined in 4.5.3. |
||
|
HasInterface |
ObjectType |
IDeviceHealthType |
Defined in 4.5.3. |
||
|
|
|
|
|
|
|
|
0:HasComponent |
Object |
<CPIdentifier> |
|
ConnectionPointType |
OP |
|
|
|
|
|
|
|
|
0:HasProperty |
Variable |
SerialNumber |
0:String |
0:PropertyType |
M |
|
0:HasProperty |
Variable |
RevisionCounter |
0:Int32 |
0:PropertyType |
M |
|
0:HasProperty |
Variable |
Manufacturer |
0:LocalizedText |
0:PropertyType |
M |
|
0:HasProperty |
Variable |
Model |
0:LocalizedText |
0:PropertyType |
M |
|
0:HasProperty |
Variable |
DeviceManual |
0:String |
0:PropertyType |
M |
|
0:HasProperty |
Variable |
DeviceRevision |
0:String |
0:PropertyType |
M |
|
0:HasProperty |
Variable |
SoftwareRevision |
0:String |
0:PropertyType |
M |
|
0:HasProperty |
Variable |
HardwareRevision |
0:String |
0:PropertyType |
M |
|
0:HasProperty |
Variable |
DeviceClass |
0:String |
0:PropertyType |
O |
|
0:HasProperty |
Variable |
ManufacturerUri |
0:String |
0:PropertyType |
O |
|
0:HasProperty |
Variable |
ProductCode |
0:String |
0:PropertyType |
O |
|
0:HasProperty |
Variable |
ProductInstanceUri |
0:String |
0:PropertyType |
O |
|
|
|
|
|
|
|
|
Applied from IDeviceHealthType |
|||||
|
0:HasComponent |
Variable |
DeviceHealth |
DeviceHealthEnumeration |
0:BaseDataVariableType |
O |
|
0:HasComponent |
Object |
DeviceHealthAlarms |
|
0:FolderType |
O |
|
|
|
|
|
|
|
|
Applied from ISupportInfoType |
|||||
|
0:HasComponent |
Object |
DeviceTypeImage |
|
0:FolderType |
O |
|
0:HasComponent |
Object |
Documentation |
|
0:FolderType |
O |
|
0:HasComponent |
Object |
ProtocolSupport |
|
0:FolderType |
O |
|
0:HasComponent |
Object |
ImageSet |
|
0:FolderType |
O |
|
Conformance Units |
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|
DI DeviceType |
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DeviceType is a subtype of ComponentType which means it inherits all InstanceDeclarations.
The DeviceType ObjectType is abstract. There will be no instances of a DeviceType itself, only of concrete subtypes.
ConnectionPoints (see 5.4) represent the interface (interface card) of a DeviceType instance to a Network. Multiple ConnectionPoints may exist if multiple protocols and/or multiple Communication Profiles are supported.
The Interfaces and their members are described in 4.5. Some of the Properties inherited from the ComponentType are declared mandatory for backward compatibility.
Although mandatory, some of the Properties may not be supported for certain types of Devices. In this case vendors shall provide the following defaults:
- Properties with DataType String: empty string
- Properties with DataType LocalizedText: empty text field
- RevisionCounter Property: - 1
Clients can ignore the Properties when they have these defaults.
When Properties are not supported, Servers should initialize the corresponding Property declaration on the DeviceType with the default value. Relevant Browse Service requests can then return a Reference to this Property on the type definition. That way, no extra Nodes are needed.