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OPCUA Protocol Handler Flow:

OPCUA Protocol Handler Installation:

Date	Download Location	Version
4/11/2018	Download	1.1.1

OPCUA Setup Instructions

Unzip the downloaded zip file
Copy the sff.bundle.ext.opc.jar from this location to the sff.auto.launch folder which is present in your A-Stack Prime folder.

OPCUA Protocol Parameters:

The table below lists all the parameters of opcua protocol handler and their description

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Code Block

language	xml
title	Xml Output Format
linenumbers	true

  <SubscriptionData Value="" Version="1">
    <Known>
        <OpcUaNodes>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank1.Tank_1_Agitator_Motor_Running_Bit</NodeID>
                <NodeValue>false</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Boolean</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank1.Tank_1_FCU_Temperature</NodeID>
                <NodeValue>999.0</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Float</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank1.Tank_1_Gallon_Value</NodeID>
                <NodeValue>1.34547004E15</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Double</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank1.Tank_1_Loading_PP_Motor_Running_Bit</NodeID>
                <NodeValue>false</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Boolean</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank1.Tank_1_RAW_Level_Inches</NodeID>
                <NodeValue>500.0</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Double</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank1.Tank_1_steaming_in_auto_selected_HMI</NodeID>
                <NodeValue>false</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Boolean</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank1.Tank_1_unld_PP_Motor_Running_Bit</NodeID>
                <NodeValue>false</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Boolean</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank2.Tank_2_Agitator_Motor_Running_Bit</NodeID>
                <NodeValue>false</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Boolean</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank2.Tank_2_FCU_Temperature</NodeID>
                <NodeValue>56.0</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Float</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank2.Tank_2_Gallon_Value</NodeID>
                <NodeValue>1.34547004E15</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Double</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank2.Tank_2_Loading_PP_Motor_Running_Bit</NodeID>
                <NodeValue>false</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Boolean</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank2.Tank_2_RAW_Level_Inches</NodeID>
                <NodeValue>34.6</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Double</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank2.Tank_2_steaming_in_auto_selected_HMI</NodeID>
                <NodeValue>false</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Boolean</DataType>
            </OpcUaNode>
            <OpcUaNode>
                <ServerTimeStamp/>
                <NodeID>ns=2;s=Atomiton.OilAndGas.Test.Device1.TankData.Test.Tank2.Tank_2_unld_PP_Motor_Running_Bit</NodeID>
                <NodeValue>false</NodeValue>
                <StatusCode>GOOD</StatusCode>
                <SourceTimeStamp>03/07/17 19:53:39.8876995 GMT</SourceTimeStamp>
                <DataType>Boolean</DataType>
            </OpcUaNode>
        </OpcUaNodes>
    </Known>
</SubscriptionData>

Kepserver certificate setup steps:

Open the Kepserver Configuration Manager, by right clicking on kepserver icon in the task-bar and then clicking on OPC UA Configuration.Image Added

Note down the security mode used by the Kepserver, this is one of the important query parameter.

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When the security mode is not None, the subscription or publish will fail for the first time, with the below message, this is expected behavior as the certificates are not updated in Kepserver.

Code Block

title	OPCUA Error

Caused by: com.prosysopc.ua.client.ServerConnectionException: Server not connected: opc.tcp://MSEDGEWIN10:49320 [http://opcfoundation.org/UA/SecurityPolicy#Basic128Rsa15,SignAndEncrypt]
              at com.prosysopc.ua.client.UaClient.E(Unknown Source)
              at com.prosysopc.ua.client.AddressSpace.browse(Unknown Source)
              at com.prosysopc.ua.client.AddressSpace.browse(Unknown Source)
              at com.prosysopc.ua.client.AddressSpace.browse(Unknown Source)
              at com.atomiton.sff.imp.netty.opc.client.OPCUaClient.subscribeToAllChildNodes(OPCUaClient.java:237)
              at com.atomiton.sff.imp.netty.opc.OpcHandlerImpl.CreateSubscription(OpcHandlerImpl.java:194)
              at com.atomiton.sff.imp.netty.opc.SffOpcHandler.connect(SffOpcHandler.java:399)
              at com.atomiton.sff.imp.netty.opc.SffOpcHandler.afterAdd(SffOpcHandler.java:103)
              at org.jboss.netty.channel.DefaultChannelPipeline.callAfterAdd(DefaultChannelPipeline.java:342)
              at org.jboss.netty.channel.DefaultChannelPipeline.addLast(DefaultChannelPipeline.java:108)
              at com.atomiton.sff.imp.netty.NettyContext.addPipelineHandler(NettyContext.java:4950)
              at com.atomiton.sff.imp.netty.NettyContext.addLast(NettyContext.java:5008)
              at com.atomiton.sff.imp.netty.NettyContext.modifyPipeline(NettyContext.java:4672)
              at com.atomiton.sff.imp.netty.NettyContext.newModifiedPipeline(NettyContext.java:4793)
              at com.atomiton.sff.imp.netty.NettyContext.newInstance(NettyContext.java:4414)
              at com.atomiton.sff.imp.facet.SffWdlFacet.wdlInvokeConnect(SffWdlFacet.java:1226)
              at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
              at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:498)
              at oda.concurrent.imp.MethodSignature.invoke(MethodSignature.java:446)
              at oda.concurrent.dataflow.imp.DfTask.call(DfTask.java:1352)
              at oda.concurrent.dataflow.imp.DfTask.delegate(DfTask.java:1374)
              at com.atomiton.sff.imp.facet.SffWdlFacet.wdlInvoke(SffWdlFacet.java:1103)
              at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:498)
              at oda.concurrent.imp.MethodSignature.invoke(MethodSignature.java:446)
              at oda.concurrent.dataflow.imp.DfTask.call(DfTask.java:1297)
              at java.util.concurrent.ForkJoinTask$AdaptedCallable.exec(ForkJoinTask.java:1424)
              at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
              at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
              at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
              at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

The A-stack will generate the certificate files in the path "PKI/CA/{path provided in the query}" for example when we use above query, the certificates are saved in "PKI/CA/atomiton/certs" folder.

Image Added

Copy these certificates on to the machine that is running the Kepserver, and import these certificates in Trusted Clients tab of configuration manager.

Image Added

Go to the Run time tab of Kepserver and then reinitialize the server for the new settings to take place.

Image Added

Restart the subscription in AStack and it should start working this time.

Troubleshooting:

If we are still getting server not connected error even after certificates are imported and connectivity between the system running AStack and system running Kepserver is validated, then it might be firewall issues, try adding exceptions in firewall and test.

Versions Compared

Old Version 13

New Version 14

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