Level 1 OPC and DCOM Diagnostics

The essential introduction to OPC.

Certified OPC Level 1Students learn the fundamental concepts and vision of OPC. Students compare traditional connectivity methods to OPC and discuss the strength each method offers. All the OPC specifications are discussed and the class delves into OPC Data Access (OPC DA) for real-time data access.

Course Length: 12 hours


  • Microsoft Windows and basic computer use
  • An understanding of automation requirements
  • No previous OPC experience is expected


OPC Tunneling Technology: A common communication requirement is to pass information through different Windows domains, over low bandwidth lines, WANS, firewalls, etc. Students learn how OPC can work with these restrictions. The class also discusses other uses for this technology to ensure a cross-industry exposure.

OPC Alarms and Events: The OPC Alarms and Events (OPC A&E) specification is discussed in detail. Students learn when to apply this technology and how they can use it for alarm management practices in general.

OPC Redundancy: Industrial applications frequently require high availability and reliability that can be easily achieved by implementing communication redundancy. The instructor differentiates between device, driver, and application redundancy, and the class learns the impact of various fail-over policies.

OPC Client Server Architecture: The client/server nature of OPC enables users to architect connectivity solutions that would previously be prohibitively expensive. Students learn how to connect different control systems to each other, and transfer data between systems in general. Microsoft Excel is also introduced here to illustrate how custom calculations can be implemented.

OPC Historical Data Access: Students learn how they can use the OPC Historical Data Access (OPC HDA) specification to archive and retrieve process data. They also get an opportunity to trend data and produce reports using the OPC HDA client applications.

Networking: Students learn the fundamental concepts of Ethernet networks as they apply to OPC communication. The instructor discusses OPC communication and the communication network in depth. Students will learn to recognize various network-related problems within OPC applications and discuss how these problems can impact overall operations. The instructor then sets up various problems and the students get a chance to diagnose the issues.

DCOM Essentials: DCOM configuration is what delays success in most installations, and is the problem users report the most often when working with OPC applications. Students learn how DCOM works, diagnose DCOM symptoms, and manage DCOM within current operations. Then they diagnose DCOM problems and work to fix them.

DCOM Troubleshooting Techniques: Students learn how to select different “Windows Users” to ensure people get access from their own Domain, other Domains, or even Workgroups. Students find out about the various OPC tools and applications they can use to debug networking and automation problems. The instructor works through a variety of hands-on exercises that are simulated versions of common problems typically encountered in process, batch and discrete manufacturing environments.

To view a list of companies throughout the world with Certified OPC Professional (COP) designation staff, click here


Upon completion of this training, students will:

  • Learn the various OPC specification including:
    • OPC .NET (previously OPC Xi)
    • OPC Unified Architecture (OPC UA)
    • OPC Data Access (OPC DA)
    • OPC Historical Data Access (OPC HDA)
    • OPC Alarms and Events (OPC A&E)
  • Improve system reliability using standards-based technology
  • Configure and test OPC applications
  • Configure OPC/DCOM to comply with network security policies
  • Archive process data, produce trends, create reports, and conduct analysis in Microsoft Excel
  • Diagnose OPC connectivity issues
  • OPC Best Practices to avoid common pitfalls


  • Dedicated use of a computer for the duration of the course
  • Level 1: “OPC and DCOM Diagnostics” resource workbook
  • Certified OPC Professional Level 1 Certificate (upon successful completion)
  • Refreshments


OPCTI provides hands-on training and as such, each student receives their own dedicated computer for the duration of the training so they can complete all the exercises on their own. Students are also permitted to bring their own laptops. OPCTI provides all the necessary software licenses. The software used is from various vendors to expose students to a variety of solutions and ensure a vendor-neutral message.

Contact us now if you have a requirement for OPC training  Or call Ann in Admin on +44 207 193 8018