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Connected sensors on the physical asset collect data that can be mapped onto the digital model. Anyone looking at the digital twin can view crucial information about how the physical asset is performing in the real world so that workers can easily make informed decisions, enabling timely corrections to underperforming assets.

One of the main advantages of a digital twin is the line of sight that it provides. A digital line of sight is a digital connection of data throughout an asset's lifecycle, ensuring information integrity and accuracy, as well as timely access to data. Lack of line of sight puts any operation at risk because personnel cannot make decisions without accessible, trusted, and up-to-date information. Process industry leaders have turned to digital twins, such as PlantSight, jointly developed by Bentley and Siemens, to connect data, systems, and people in an accurate and immersive visual context for digital line of sight. 

A variety of personnel can view digital twins and gain specific benefits. Below are examples of personas who, via a digital twin, can work seamlessly together for a clear line of sight across the whole operation.

Designing for Resilience

For design, process, and plant engineers, collaboration is key when designing a new plant or project. When multiple engineers are working on a model, one of the biggest challenges they face is knowing where the critical documents and data are, as they are often difficult to validate and visualize. Engineers want to maintain a timeline of changes and capture how, when, and by whom the changes were made. Some applications lack a timeline of changes, causing work duplication, work on the wrong model, and working without up-to-date information. What engineers require is a single source of information, where they can easily access associated documents, manuals, procedures, piping and instrumentation diagram (P&ID), and CAD drawings. A digital twin provides that information.

Operational and Reliability Insights

Operational and reliability teams are concerned with plant performance and production, keeping equipment running while maximizing uptime. They deal with millions of data points, sometimes daily, to obtain insights from large volumes of IIoT data. Like the engineering teams, they also need to consolidate and analyze data from multiple sources to know what is going on at all times and discover areas for improvement.

In this case, a digital twin helps identify performance issues by visualing assets and analyzing condition indicators, such as temperature, flow, vibrations, and corrosion. Analyzing condition indicators helps them to reduce risk and ensure environmental integrity and safety at the same time. A view to key performance indicators (KPIs) provides an overview of current performance and comparison to similar equipment and assets in sister plants. 

Maintaining the Plant

Maintenance teams are central to operations, as they keep production moving and reduce downtime. Digital twins give them line of sight, providing knowledge of the reason behind each condition indicator and each inspection, why they do the work they do, and what to expect in terms of asset reliability. Safety and environmental integrity are paramount, so timely access to safety information, permits, and lock-out/tag-out is important. A digital twin provides a central federated source of information. Visualizing the area, the assets, and the components, as well as understanding the current operating context and current conditions, is vital to the job. Maintenance needs access to engineering documentation and performance information for the pump that triggered an alarm or the pipe that is losing pressure. They require access to key information to see the condition degradation trends and understand the whole process before making decisions on corrective actions. Viewing the asset in a digital twin provides maintenance with the visualization and information they need. 

View from Above

Further up the organization, senior management and directors can access the key safety and risk indicators for a complete and consistent view of the plant in a single portal. Within the digital twin, they can instantly view performance, production, and costs, obtain proof of regulatory compliance, and measure against KPIs and targets. With this information, they can make strategic and informed asset management decisions and put policies in place based on these goals.

Organizations will more easily attain their performance objectives and realize the best value from their assets if they establish digital line of sight, enabled by a digital twin. Digital line of sight will help the workforce collaborate and reach high levels of operational excellence, with minimal effort and in the shortest time possible. 

Fig.1 Digital line of sight provides digital visibility of all assets across the whole lifecycle within the organization.

Fig.2 Clicking on a pump in an alarm state brings up information, such as the history of performance, connected documentation, work orders, and changes from a single source of truth.

Richard Irwin, Solution Marketing Manager, Digital Twin & Industry Marketing at Bentley Systems