T4 Architecture for Wastewater Treatment Plants

This document describes the T4 architecture, a high-performance SCADA and control solution for very large wastewater treatment plants serving 500,000 to over 1 million inhabitants. It details the system's components, including redundant Vijeo Citect servers, Premium TSX57 and Modicon M340 controllers, dual Ethernet rings, and the Unity Application Generator with its water object library for optimized engineering and process management.