Schneider 140NOE21100C Ethernet Module

This communication module bridges Schneider Quantum PLCs to standard Ethernet networks. It enables high-speed data exchange between controllers and plant-wide systems. You can rely on this unit for real-time monitoring and remote diagnostics.

Technical Specifications

Parameter	Value
Model	Schneider 140NOE21100C
Category	Ethernet TCP/IP Communication Module
Physical Interface	10/100 Base-T (RJ45, auto-sensing)
Protocol Support	TCP/IP, UDP/IP, Modbus TCP, HTTP, SNMP, FTP
Maximum Connections	64 simultaneous Modbus TCP sessions
Data Rate	10 Mbps or 100 Mbps (auto-negotiation)
Cable Type	CAT5e or CAT6, shielded recommended
Maximum Cable Length	100 meters per segment
IP Addressing	Static, BOOTP, or DHCP
Web Server	Built-in for configuration and diagnostics
Diagnostic LEDs	6 (Status, Activity, Collision, Fault, Power, Link)
Internal Memory	1 MB for firmware and data buffering
Power Draw	600 mA from +5 VDC backplane
Dimensions (W x H x D)	4.5 cm × 12.5 cm × 13.5 cm
Weight	0.48 kg (1.06 lbs)
Connector Type	One RJ45 shielded female + one DB9 (debug)
Component Count	1 main board + 1 Ethernet controller + 2 connectors + 6 LEDs
Energy Storage	100 µF flash retention capacitor

Network Connectivity Features

The Schneider 140NOE21100C provides auto-sensing 10/100 Mbps Ethernet connectivity. It negotiates speed and duplex settings automatically with your network switch. This module supports Modbus TCP for seamless PLC-to-PLC or PLC-to-HMI communications. You can establish up to 64 simultaneous Modbus TCP sessions without performance degradation.

Protocol Support and Data Exchange

This module handles multiple industrial protocols on a single Ethernet port. It supports HTTP for web-based access and FTP for file transfers. Moreover, the unit acts as an SNMP agent for network management tools. You can exchange data with enterprise systems without custom gateway hardware.

Web Server and Diagnostics

A built-in web server provides real-time module status and configuration pages. You can access diagnostic information using any standard web browser. The server displays connection counts, error logs, and network statistics. Consequently, technicians can troubleshoot issues without proprietary software or programming cables.

Addressing and Configuration

You can assign an IP address using static configuration or dynamic methods. The module supports BOOTP and DHCP for automatic address assignment. A serial debug port (DB9) allows local configuration during initial setup. For best results, use static addressing for critical control networks.

Installation and Compatibility

Mount this module in any slot of a Quantum 140 series rack. The unit draws 600 mA from the +5 VDC backplane supply. It works with all Quantum CPUs running firmware version 2.0 or higher. You need Concept or Unity Pro software for advanced configuration.

Diagnostic Indication

Six LEDs on the front panel provide immediate network status feedback. A green Link LED shows an active physical connection to your switch. The Activity LED flashes when data packets transmit or receive. A Fault LED illuminates for IP conflicts, duplicate MAC addresses, or hardware errors.

Energy Storage and Reliability

A 100 µF capacitor retains configuration data during momentary power interruptions. The module stores its firmware and settings in non-volatile flash memory. You can replace the unit without reloading the IP configuration. Therefore, this design minimizes downtime during emergency replacements.

Why Choose This Module

This Ethernet module upgrades legacy Quantum networks to modern IP infrastructure. It provides plant-wide visibility into your control system operations. Therefore, manufacturers choose this unit for production monitoring and predictive maintenance programs.