Schneider 171CBU98090 Unity M1E Processor

Overview

The Schneider 171CBU98090 is a Unity M1E Processor from the Modicon Momentum platform. It forms the core of distributed control systems. Engineers use it for real-time control, data communication, and system integration. The processor supports RS232/485, Ethernet, and USB interfaces. It provides seamless connectivity for industrial automation applications. Additionally, built-in web services support diagnostics and remote monitoring.

Technical Specifications

Processor and Performance

• Processor Type: Spear 320s

• Clock Frequency: 333 MHz

• Word Length: 32-bit

Power Requirements

• Supply Voltage Limits: 4.75V to 5.25V

Communication Services

• Modbus Messaging: 125 words, 200 I/O messages/second

• Global Data Exchange: 1600 I/O messages/second

• Supported Protocols: Modbus TCP I/O Scanner and Messaging

Communication Ports

• Modbus RS232/RS485: 1 × RJ45 (19200 bps, 2-wire)

• Ethernet Port: 1 × RJ45 (10/100 Mbps, CAT 5E UTP)

• Network Topology: Multidrop Modbus, Star Modbus TCP

Web Services

• Functions: CPU status, Ethernet stats, bandwidth monitoring

• Access: Web-based home pages and device properties

Memory and Capacity

• Program Memory: 3584 kB (IEC + LL984)

• Register Words: 26,048

• I/O Capacity: 2048 inputs / 2048 outputs

Fail-Safe Operation

• Fail State: Safe I/O mode

Environmental Ratings

• Operating Temperature: 0°C to 60°C

• Storage Temperature: -40°C to 85°C

• Humidity: 5% to 96% (non-condensing)

• Shock Resistance: 15g (11ms sinusoidal)

• ESD Protection: 6kV contact, 8kV air

• EMF Immunity: 15V/m (80–2700 MHz)

Mechanical Features

• Mounting: 35mm symmetrical DIN rail

• Protection Rating: IP20

Certifications

• Standards: CE, UL 508, CSA C22.2 No 142

• Others: FM, C-Tick, EN/IEC 61131-2

Physical Dimensions

• Width: 144 mm

• Depth: 53.47 mm

• Height: 60.6 mm

• Weight: 0.163 kg