Schneider 140NOC78000 Ethernet I/O Head Module

Overview

The 140NOC78000 is an Ethernet I/O head module from Schneider Electric’s Modicon Quantum series. It supports high-speed communication using Modbus TCP and EtherNet/IP protocols. The module features a 4-port switch, supports redundant network topologies, and includes an embedded web server for configuration and diagnostics. Designed for industrial environments, it ensures robust, scalable, and redundant communication between PLCs and distributed I/O devices.

Technical Specifications

• Product Type: Ethernet I/O Head Module

• Model Number: 140NOC78000

• Supported Protocols: Modbus TCP, EtherNet/IP, SNMP, DHCP, FTP, DNS

• Transmission Rate: 10/100 Mbps (full duplex)

• Maximum Connections: 128 simultaneous connections

• Ethernet Ports: 4 × RJ45 (10BASE-T / 100BASE-TX)

• Network Topology Support: Redundant ring, Daisy chain loop

• Redundancy: Hot standby supported

• Embedded Web Server: Yes (for diagnostics and configuration)

• Time Synchronization: NTP supported

• Power Supply: 5 VDC via Quantum backplane

• Power Consumption: Max 5 W

• Local Signaling LEDs:

• Module status

• Network status

• Communication activity

• Configuration readiness

• Mounting Method: Quantum rack-mounted

• Operating Temperature: 0°C to +60°C

• Relative Humidity: 10–95% RH (non-condensing)

• Protection Rating: IP20

• Dimensions (H × W × D): 84 × 110 × 40 mm

• Weight: 0.345 kg