ATV900 Embedded Modbus Serial Link Manual

This document provides information for installing, configuring, operating, and troubleshooting the Modbus serial communication functionality on Altivar Process 900 drives. It covers hardware overview, connection procedures, electrical installation practices, communication parameter configuration including address, baud rate, format and timeout settings, profile descriptions including CiA402 and I/O profiles, operating state diagrams, supported Modbus functions, communication scanner setup, and diagnostic procedures. The manual includes detailed parameter descriptions, LED status indicators, and practical examples for fieldbus integration using Unity software with M340 PLC systems. Note: AI-generated document summary. Please check the original document for detailed information.