PLC Connection Monitor_V2 | Custom Web Control | WinCC Unified & V8

Custom Web Control

About PLC Connection Monitor_V2

The PLC Connection Monitor_V2 is a high-performance Custom Web Control engineered for real-time diagnostic visualization in industrial environments. It provides a centralized dashboard for monitoring the operational health and communication integrity of S7-1200 and S7-1500 controllers. By leveraging WinCC Unified system tags, it delivers a clear overview of station-level diagnostics, including RUN, STOP, startup, and fault conditions, ensuring operators can identify and resolve connectivity issues instantly.

Key Features

• Aggregate Diagnostic KPIs: View high-level performance metrics alongside detailed individual station cards for a comprehensive system health check.
• Isolated Fault Handling: Each controller is treated as an independent entity, preventing a single communication failure from affecting the monitoring of the rest of the fleet.
• Dynamic Event System: Utilize the ConnectionStatusChanged event to trigger external logic when states shift, or the CardClicked event to navigate to specific detail screens.
• Manual Override: Includes the refreshDiagnostics method to force an immediate polling update outside of the standard cycle.

Customization

The control is highly adaptable through its integrated property interface. Users can define the plcConnections via a comma-separated list of exact WinCC Unified connection names and adjust the updateInterval to balance performance with data freshness. Visual elements such as backgroundColor, titleText, and subText allow for seamless integration into existing HMI design standards, while the emptyStateText ensures clear communication even when no connections are active.

Use Cases

• Centralized Control Rooms: Monitor large-scale fleets of S7-1200/1500 PLCs from a single diagnostic hub.
• Maintenance Dashboards: Provide technicians with immediate visual feedback on PLC operating states (RUN/STOP) and fault status.
• Communication Gateways: Track the stability of network links between the HMI and distributed automation hardware.

Compatibility

This control is fully compatible with WinCC Unified (TIA Portal) and WinCC V8. It is designed for modern web-based HMI architectures and requires standard system tag access for diagnostic data retrieval.

⚠️ AI-Generated: This custom web control was automatically generated using AI. Please test and validate all diagnostic logic and communication paths in a non-production environment before full deployment.

⚠️ 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 (2026-10-06)