System Name Foxboro MICRO-I/A Type Compact Distributed Control System (DCS) Key Characteristics Integrated controller & HMI, ruggedized design, true DCS functionality for small to medium applications. Hardware Components Controller Modules (CM) e.g., CM400 Series (like the CM400TH). These were the core processors, often featuring integrated displays and keypads. I/O Expansion Supported connection to remote I/O racks using Foxboro's FBM (Field Bus Module) series, the same I/O modules used in the larger I/A Series. This ensured compatibility and scalability. Power Supplies Dedicated power supply modules for the controller and I/O racks. Software & Configuration Engineering Software Configured using Foxboro's I/A Series software tools (like the Foxboro Control Core) on a Windows-based PC, ensuring commonality with the larger I/A Series. Control Languages Supported standard DCS and PLC languages: Continuous Function Chart (CFC), Ladder Logic (LD), Sequential Function Chart (SFC), Structured Text (ST). Communication & Networking Peer-to-Peer Communication Micro-I/A stations could communicate with each other over a network. Integration with I/A Series Could be seamlessly integrated as a node into a larger Foxboro I/A Series DCS network via Nodebus or other supported protocols. Open Protocols Supported industry-standard protocols like Modbus TCP/IP and Modbus RTU for connecting to third-party devices (PLCs, drives, etc.) and systems. Physical & Environmental Enclosure Modules were designed for panel mounting with a high degree of integration. Environmental Rating Typically NEMA 4X / IP66 for the controller, allowing installation in harsh industrial environments (dust, water sprays, corrosion). Operating Temperature 0°C to +60°C (32°F to 140°F) standard.