LTMS 
The representation of the LTMS ObjectType in the address space is shown in the following table:
| Name | Attribute |
|---|---|
| NodeId | ns=1;i=343 |
| NamespaceUri | http://opcfoundation.org/UA/IEC61850-7-4 |
| BrowseName | LTMS |
| NodeClass | ObjectType |
| IsAbstract | False |
| SubtypeOf | CommonLN |
The references from the LTMS ObjectType Node are shown in the following table:
| Reference | NodeClass | BrowseName | DataType | TypeDefinition | ModellingRule |
|---|---|---|---|---|---|
| HasDataObject | Object | TmAcc | INS | Optional | |
| HasDataObject | Object | TmSrc | VSS | Mandatory | |
| HasDataObject | Object | TmSyn | ENSClockSyncKind | Optional | |
| HasDataObject | Object | TmChSt | SPS | Optional | |
| HasDataObject | Object | TmSrcSet | VSG | Optional |