This ObjectType is the TypeDefinition for an Object that allows the configuration of KeyCredentials used by the Server. It also includes basic status information which report problems accessing the resource that might be related to bad KeyCredentials. It is defined in Table 56.
Table 56 – KeyCredentialConfigurationType Definition
|
Attribute |
Value |
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|
BrowseName |
KeyCredentialConfigurationType |
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|
Namespace |
CORE (see 3.3) |
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|
IsAbstract |
False |
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|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Modelling Rule |
|
Subtype of the BaseObjectType defined in OPC 10000-5. |
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|
HasProperty |
Variable |
ResourceUri |
String |
PropertyType |
Mandatory |
|
HasProperty |
Variable |
ProfileUri |
String |
PropertyType |
Mandatory |
|
HasProperty |
Variable |
EndpointUrls |
String[] |
PropertyType |
Optional |
|
HasProperty |
Variable |
ServiceStatus |
StatusCode |
PropertyType |
Optional |
|
HasComponent |
Method |
GetEncryptingKey |
|
Defined in 8.5.8. |
Optional |
|
HasComponent |
Method |
UpdateCredential |
|
Defined in 8.5.3. |
Optional |
|
HasComponent |
Method |
DeleteCredential |
|
Defined in 8.5.4. |
Optional |
The ResourceUri Property uniquely identifies the resource that accepts the KeyCredentials.
The ProfileUri Property specifies the protocol used to access the resource.
The EndpointUrls Property specifies the URLs that the Server uses to access the resource.
The ServiceStatus Property indicates the result of the last attempt to communicate with the resource. The following common error values are defined:
|
ServiceStatus |
Description |
|
Bad_OutOfService |
Communication was not attempted by the Server because Enabled is FALSE. |
|
Bad_IdentityTokenRejected |
Communication failed because the KeyCredentials are not valid. |
|
Bad_NoCommunication |
Communication failed because the endpoint is not reachable. Where possible a more specific error code should be used. See OPC 10000-4 for a complete list of standard StatusCodes. |
The GetEncryptingKey Method is used request a Public Key that can be used to encrypt the KeyCredentials.
The UpdateKeyCredential Method is used to change the KeyCredentials used by the Server.