OpcuaExport Application

OpcuaExport

OpcuaExport service serves as as OPCUA server subscribring to classified results from message bus and starts publishing meta data to OPCUA clients.

Important: OpcuaExport service can subscribe classified results from both VideoAnalytics (video) or InfluxDBConnector (time-series) use cases. Ensure the required service to subscribe from is mentioned in the Subscribers configuration in config.json([WORK_DIR]/IEdgeInsights/OpcuaExport/config.json). In this document, you will find labels of ‘Edge Insights for Industrial (EII)’ for file names, paths, code snippets, and so on. Consider the references of EII as Open Edge Insights for Industrial (Open EII). This is due to the product name change of EII as Open EII.

Configuration

For more details on Etcd secrets and messagebus endpoint configuration, visit Etcd_Secrets_Configuration.md and MessageBus Configuration respectively.

Service Bring Up

• Complete the following steps to generate Opcua client certificates before running test client subscriber for production mode.

  1. Refer to the following sections to build and launch OpcuaExport

     • ../README.md#generate-deployment-and-configuration-files

     • ../README.md#provision

     • ../README.md#build-and-run-eii-videotimeseries-use-cases

  2. Update Opcua client certificate access so that sample test program can access the certificates.

     sudo chmod -R 755 ../../build/Certificates
     

     Caution: This step will make the certs insecure. Do not do this step on a production machine.

• To run a test subscriber follow the README at OpcuaExport/OpcuaBusAbstraction/c/test([WORK_DIR]/IEdgeInsights/OpcuaExport/OpcuaBusAbstraction/c/test)

OPCUA Client Apps

• OpcuaExport service has been validated with the following third party OPCUA client apps:

  • OPCUA CTT tool (https://opcfoundation.org/developer-tools/certification-test-tools/opc-ua-compliance-test-tool-uactt/)

  • UaExpert (https://www.unified-automation.com/downloads/opc-ua-clients.html)

  • Integrated Objects (https://integrationobjects.com/sioth-opc/sioth-opc-unified-architecture/opc-ua-client/)

  • Prosys OPCUA client app(https://www.prosysopc.com/products/opc-ua-browser/)

Note

To connect with OPCUA client apps, User needs to take backup opcua_client_certificate.der([WORK_DIR]/IEdgeInsights/opcua_client_certificate.der) and copy OPCUA client apps certificate to it.

sudo chmod -R 755 ../../build/Certificates
cp <OPCUA client apps certificate> ../build/Certificates/opcua/opcua_client_certificate.der

Ensure not to bring down ConfigMgrAgent(ia_configmgr_agent) service, however restart necessary services like ia_opcua_export to reflect the changes.

• Running in Kubernetes environment

Install provision and deploy helm chart

cd ../build/helm-eii/
helm install eii-gen-cert eii-gen-cert/

This will generate the Certificates under eii-deploy/Certificates folder.

sudo chmod -R 755 eii-deploy/Certificates

To connect with OPCUA client apps, User needs to copy OPCUA client apps certificate to opcua_client_certificate.der([WORK_DIR]/IEdgeInsights/opcua_client_certificate.der).

Deploy Helm Chart

helm install eii-deploy eii-deploy/

Access Opcua server using “opc.tcp://:32003” endpoint.