OPC UA communication
9.2 Security at OPC UA
Communication
200
Function Manual, 05/2021, A5E03735815-AJ
Structure of the "TrustList" node
The "TrustList" node has the following structure:
Methods and attributes for the "TrustList" node
Below is a description of the nodes under "TrustList" that supplement the methods of the
Object Type "FileType". The TrustList Type is derived from FileType (see OPC 10000-5: OPC
Unified Architecture, Part 5: Information Model).
Method / Attribute (Variable)
Description
LastUpdateTime
Variable that shows the time of the last update.
OpenWithMasks
Method that permits a client to only read a part of the Trus-
tList.
CloseAndUpdate
Method for closing the TrustList file and applying the
changes.
AddCertificate
Method for adding a single certificate to the TrustList.
RemoveCertificate
Method for removing a single certificate from the TrustList.
Description of the methods
The description of the methods with their result codes, attributes and types of the TrustList
object is available in the OPC UA specification Part 12, Discovery and Global Services.
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