140NOC78000

The Schneider Electric 140NOC78000C is a high-performance Ethernet I/O head module designed for the Modicon Quantum automation platform. It acts as a critical communication interface, enabling seamless data exchange between PLC systems and distributed I/O networks using industrial Ethernet protocols.

Engineered for demanding industrial environments, this module combines high-speed networking, redundancy support, and advanced diagnostics, making it ideal for large-scale automation systems that require reliable, real-time communication and network stability.

Technical Specifications

Parameter	Specification
Product Type	Ethernet I/O Head Communication Module
Platform	Modicon Quantum
Communication Protocols	Modbus TCP, Ethernet/IP
Ethernet Ports	RJ45 (10BASE-T / 100BASE-TX)
Transmission Rate	10 / 100 Mbit/s
Exchange Mode	Full Duplex
Max Connections	Up to 128 simultaneous connections
Embedded Switch	4-port Ethernet switch
Network Services	SNMP, DHCP/BootP, QoS, NTP, CIP messaging
Redundancy	Hot standby architecture
Network Topology	Daisy chain, redundant ring
Diagnostics	Embedded web server + LED indicators
Bus Current Requirement	~750 mA
Operating Temperature	0 °C to 60 °C
Storage Temperature	–40 °C to 85 °C
Dimensions (H × W × D)	155 × 110 × 45 mm (standard Quantum module size)
Weight	Approx. 0.35 – 0.45 kg

Recommended Related Models

140NOC78000 – Standard Ethernet I/O Head Module
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140NOE77101 – Ethernet Communication Module
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Applications

The 140NOC78000C is widely used in automation systems requiring high-speed industrial Ethernet communication:

Distributed I/O architectures in large plants
Manufacturing and production line automation
Process control in oil, gas, and utilities
SCADA and HMI network integration
Redundant control systems requiring high availability

Advantages

High-Speed Ethernet Communication: Supports 10/100 Mbps with up to 128 connections for large systems.
Built-In Redundancy: Hot standby and ring topology ensure continuous operation and minimal downtime.
Integrated Ethernet Switch: Embedded 4-port switch simplifies network architecture.
Advanced Diagnostics: Web server, SNMP, and LED indicators enable fast troubleshooting.
Flexible Integration: Compatible with Modbus TCP and Ethernet/IP networks for broad system compatibility.

Technical FAQs

What is the main function of the 140NOC78000C?
It provides Ethernet-based communication between Quantum PLCs and distributed I/O networks.
Which protocols are supported?
Modbus TCP and Ethernet/IP.
How many devices can it connect to?
Up to 128 simultaneous connections.
Does it support redundancy?
Yes, it supports hot standby and redundant ring architectures.
What is the data transmission speed?
10/100 Mbps Ethernet.
Does it include a built-in switch?
Yes, an embedded 4-port Ethernet switch is included.
What are the module dimensions?
155 × 110 × 45 mm.
What is the weight?
Approximately 0.35–0.45 kg.
Is it suitable for large-scale systems?
Yes, it is designed for distributed and high-capacity industrial networks.
What makes this module stand out?
Its combination of high-speed networking, redundancy, and integrated switch functionality makes it ideal for mission-critical automation systems.