Local Web Server Viewer | Custom Web Control | WinCC Unified & V8

Custom Web Control

About Local Web Server Viewer

The Local Web Server Viewer is a professional Custom Web Control (CWC) designed to bridge the gap between industrial SCADA environments and local web-based diagnostic tools. It allows engineers to embed and render unencrypted local HTTP web server interfaces directly within the WinCC Unified and WinCC V8 runtime environments, providing a seamless integrated experience for monitoring third-party devices, local documentation, or internal web dashboards.

Key Features

• Integrated Navigation: Features a streamlined toolbar with a live URL readout and manual reload actions for operator control.
• Automated Reliability: Built-in failure handling with configurable connection timeouts and automated retry logic to ensure high availability.
• Event-Driven Logic: Exposes PageLoaded, LoadError, and ReloadRequested events to trigger HMI scripts or PLC actions based on the viewer state.
• Dynamic Control: Supports programmatic navigation via the navigateTo method and forced updates through the reload method.

Customization

This control offers 11 adjustable properties for deep integration. Engineers can define the serverUrl and backgroundColor to match the HMI theme, toggle the showToolbar visibility, and set a specific autoRefreshInterval for hands-free updates. All text elements, including the loadingText, errorTitle, and retryButtonText, are fully customizable to meet specific plant standards or localized requirements.

Use Cases

• Device Diagnostics: Displaying the built-in web servers of drives, managed switches, or smart sensors directly on the HMI screen.
• Local Documentation: Providing operators with instant access to local PDF manuals or HTML instruction sets stored on the station.
• Internal Dashboards: Visualizing local analytics or reporting tools hosted on the same network segment.

Compatibility

Fully compatible with WinCC Unified (TIA Portal) and WinCC V8. The package includes all necessary manifest files for rapid deployment and property binding.

⚠️ AI-Generated: This custom web control was automatically generated using AI. Please test and validate all connection behaviors and security settings 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.

## Current version: v1 (2026-10-12)