Aztec AWT440 Multi-Input Transmitter Communications Supplement

This document provides PROFIBUS, Modbus, and Ethernet connection and configuration details for the Aztec AWT440 multi-input transmitter, which uses ABB’s Aztec 400 range of digital sensors for monitoring water and wastewater treatment parameters. It includes reference tables for PROFIBUS and Modbus communications, covering diagnostics, relay status, measurement values, calibration, and engineering ranges.