OPC UA Server Manager (WCCOAopcsrv) cannot start in demo project

[shotdunyun]

Hi.
I was experimenting with configuring the SCADA as an OPC UA server for connection to a third party OPC UA client.

I managed to start the OPC UA server manager on the "Getting Started" Project but not the "Demo Application".
Both were 3.12 versions (Linux x64).

Log:
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WCCOAopcuasrv(1), 2016.03.30 13:52:31.071, PARAM,SEVERE, 5/opcuasrv, OpcUaSManager in Function connectGroup, Can not connect to group-alias @OPCUAAlarm
CCOAopcuasrv(1), 2016.03.30 13:52:33.074, SYS, SEVERE, 39, Connection lost, DP: System1:_OPCUAPvssServer.Command.DebugPI:_original.._value, MAN: (SYS: 1 Device -num 1 CONN: 1), (SYS: 1 Event -num 0 CONN: 1) Waiting for answer from closed connection
WCCOAopcuasrv(1), 2016.03.30 13:52:33.075, SYS, SEVERE, 39, Connection lost, DP: System1:_OPCUAPvssServer.Config.EnableLogging:_original.._value, MAN: (SYS: 1 Device -num 1 CONN: 1), (SYS: 1 Event -num 0 CONN: 1) Waiting for answer from closed connection
WCCOAopcuasrv(1), 2016.03.30 13:52:33.075, PARAM,SEVERE, 6/opcuasrv, OpcUaSGroupHotlinkWFA in Function hotLinkCallBack, Invalid DpMessage-Answere arrived
WCCOAopcuasrv(1), 2016.03.30 13:52:33.075, SYS, SEVERE, 39, Connection lost, DP: System1:_DpGroup00014_Public.Dps:_online.._value, MAN: (SYS: 1 Device -num 1 CONN: 1), (SYS: 1 Event -num 0 CONN: 1) Waiting for answer from closed connection
WCCOAopcuasrv(1), 2016.03.30 13:52:33.075, PARAM,SEVERE, 6/opcuasrv, OpcUaSGroupHotlinkWFA in Function hotLinkCallBack, Invalid DpMessage-Answere arrived
WCCOAopcuasrv(1), 2016.03.30 13:52:33.075, SYS, SEVERE, 39, Connection lost, DP: System1:_DpGroup00015_Public.Dps:_online.._value, MAN: (SYS: 1 Device -num 1 CONN: 1), (SYS: 1 Event -num 0 CONN: 1) Waiting for answer from closed connection
WCCOAopcuasrv(1), 2016.03.30 13:52:33.075, SYS, INFO, 2, Manager Stop


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After some digging around, I found that somehow the original Demo Application ver 3.12 that was shipped had a missing alias on _DpGroup00016_Public (internal datapoint for Datapoint Group OPCUAAlarm). After typing in "OPCUAAlarm" on the _common config (alias) for _DpGroup00016_Public, the OPC UA server manager can only be started.


Hope this is helpful, in case someone may have the same problem, or used the demo application as a base template for creating projects.

Garry.

[v3gard]

Thanks! Saved me a support request to ETM, so I'm sure they're grateful too!