Introduction to WEVA
The WAGO Energy Visualization App (WEVA) is a centralized Local Network Server solution designed for monitoring, managing, and visualizing energy data from Modbus-compatible devices. It is optimized for WAGO controllers and provides a deterministic platform for industrial energy management.
System Architecture​
WEVA operates as a Local Network Server. The backend services and data persistence layers run on a single host computer within a protected local network. Multiple clients (workstations, tablets, or mobile devices) access the visualization dashboards via a standard web browser using the host's IP address.
[!IMPORTANT] WEVA is not a standalone desktop application. It requires a central host to run Docker containers, while users interact with the system through network-connected browser clients.
GIF/Image: Visual representation of the Local Network Server architecture showing Host and Clients.
Core Functionality​
The system is engineered to provide the following capabilities without reliance on external cloud services:
- Data Acquisition: Real-time polling of Modbus TCP/UDP registers from energy meters and PLCs.
- Visualization: High-density dashboards for instantaneous and historical energy consumption monitoring.
- Control: Bidirectional communication allowing for the modification of writable Modbus registers (e.g., setpoints).
- Logging: Sequential data storage in a local SQL database for long-term trend analysis.
Operational Scope​
WEVA is intended for deployment in industrial environments where data sovereignty and offline capability are critical. It supports:
- WAGO 879 Series Energy Analyzers.
- WAGO PFC200/TP600 Controllers.
- Generic Modbus TCP/UDP devices (configurable).
Next Step: System Requirements