Real-Time Trend Chart | Custom Web Control | WinCC Unified & V8

Custom Web Control

About Real-Time Trend Chart

The Real-Time Trend Chart is a high-performance Custom Web Control engineered for professional industrial SCADA and HMI environments. It provides a sophisticated multi-channel visualization interface that allows operators to monitor complex process signals with precision. By integrating this control into WinCC Unified or WinCC V8, engineers can deliver dynamic, responsive data analysis tools directly on the factory floor without custom coding.

Key Features

• Multi-Axis Precision: Support for up to three independent Y-axes (axis1, axis2, axis3) with individual scaling controls to compare disparate signal types on a single screen.
• Dynamic Data Management: Internal buffering for up to maxPointsPerLine ensures smooth performance, while the exportToCSV method allows for instant data logging and external analysis.
• Intelligent Monitoring: Integrated event triggers like LimitExceeded notify the system the moment a process variable crosses a defined threshold.
• Flexible Scaling: Toggle between autoScaleY for hands-free monitoring or manual range settings (yAxisMin/yAxisMax) for strict process oversight.

Customization

The control offers 21 bindable properties for deep integration. Users can define the visual identity using backgroundColor and chartBackgroundColor to match corporate standards. Functional parameters such as timeRangeSeconds allow for adjustable rolling windows, while showLimits and showGrid provide essential visual cues for operational safety and data readability.

Use Cases

This control is ideal for monitoring thermal profiles in ovens, pressure fluctuations in hydraulic systems, and motor speed synchronization across multiple drives. It is particularly effective in control rooms where historical context and real-time alerts are required simultaneously.

Compatibility

Fully compatible with WinCC Unified (TIA Portal) and WinCC V8. The package includes comprehensive documentation for seamless deployment across both Siemens platforms.

💡 TIA Portal Reminder: Remember to uncheck the "Read only" option in TIA Portal when linking a tag to a property that needs to be written from the Custom Web Control. If you do not, the CWC will only be able to read the HMI tags and not write to them.

⚠️ AI-Generated: This custom web control was automatically generated using AI. Please test and validate before deploying in production environments.

⚠️ AI-Generated: This custom web control was automatically generated using AI technology. It may contain errors or unexpected behavior. Users are responsible for testing and validating before using in production environments.