Overview
The Schneider 140NOM21100 is a digital input/output (DIO) head-end adaptor purpose-built for the Modicon Quantum automation platform. As a specialized interface module, it facilitates seamless communication between PLCs, sensors, and actuators within complex industrial automation environments. This single-channel MB+ Head adaptor supports Modbus Plus and Modbus RS232 protocols, enabling robust and efficient data transfer at transmission rates up to 1 Mbit/s.
Key Features
- Dual Communication Ports: One Modbus Plus RS485 twisted-pair port and one Modbus RS232 port for versatile connectivity options
- High-Speed Data Transmission: 1 Mbit/s communication speed reduces latency in real-time monitoring and control
- Expandable I/O Capacity: Supports 30 input words and 32 output words for comprehensive data exchange
- Low Power Consumption: 4 watts power dissipation with 780 mA bus current demand
- Industrial Certifications: FM Class 1 Division 2 rated for hazardous environments
- Robust Environmental Performance: Operates from 32–140 °F (0–60 °C) with electrostatic discharge protection up to 4 kV
Technical Specifications
- Manufacturer: Schneider Electric
- Model: 140NOM21100
- Product Type: DIO Head-End Adaptor
- Platform Compatibility: Modicon Quantum
- Primary Communication Port: Modbus Plus RS485, 1 Mbit/s
- Secondary Communication Port: Modbus RS232
- Input Capacity: 30 I/O words
- Output Capacity: 32 I/O words
- Power Dissipation: 4 watts
- Bus Current Demand: 780 mA
- Operating Temperature Range: 0–60 °C (32–140 °F)
- Altitude Rating: Up to 5,000 m (16,404 ft)
- Certifications: FM Class 1 Division 2, C-Tick, GOST, CSA
Typical Applications
The Schneider 140NOM21100 is ideal for manufacturing and process control environments requiring reliable inter-device communication. Common applications include:
- Manufacturing automation systems with distributed I/O requirements
- Process control networks integrating multiple sensors and actuators
- Industrial environments requiring Modbus Plus network architecture
- Hazardous locations certified for Class 1 Division 2 operation
- Legacy Modicon Quantum system expansions and upgrades
Compatibility & Replacements
Compatible With
- Modicon Quantum automation platform
- 140CRA21110 and 140CRA21120 racks
- Modbus Plus networks (RS485 twisted-pair)
- Modbus RS232 serial devices
- Schneider Electric TSX Quantum controllers
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 140NOM21100 is a discontinued product; consult Schneider Electric for approved successor models or equivalent interface adapters.
Works With
- Modbus Plus protocol stack
- Modbus RTU/ASCII over RS232
- Modicon Quantum programming environments
- Legacy TSX Quantum systems
- Industrial Modbus networks
