OPC UA CTT Version 1.3.340.358

First observed in CTT 1.3.340.346, a test was introduced as part of Base Info Core Structure to verify that the server has nodes:
• Root – Types – ReferenceTypes
• Root – Types – ObjectTypes
• Root – Types – VariableTypes
• Root – Types – DataTypes

Base Info Core Structure (Required for Nano/Micro) requires that “The Server supports the Server Object, ServerCapabilities and supports the OPC UA AddressSpace structure.”.

Base Info Type System (Not required for Nano/Micro) requires ” The Server exposes a Type System with DataTypes, ReferenceTypes, ObjectTypes and VariableTypes including all of the OPC UA (namespace 0) types that are used by the Server, as defined in Part 5. Items that are defined in Namespace 0 but are defined in other specification parts are tested as part of the other information models.”

My interpretation has been that if Nano/Micro doesn’t have to provide the Types under the Types folder, then it shouldn’t have to provide the subfolders under the Types folder that would hold them. (Actually, I would argue that the Types folder isn’t required for Nano/Micro either.)

Base Info Core Structure should not be testing for these nodes. That should be done in Base Info Type System.