This Ethernet communication module serves as a distributed I/O head for Modicon Quantum automation platforms. The Schneider 140NOC78000C connects field devices to control networks through dual Ethernet ports with integrated switch functionality. Its robust design supports demanding applications requiring deterministic data exchange and real-time responsiveness.
Key Technical Specifications
| Parameter | Details |
|---|---|
| Model | Schneider 140NOC78000C |
| Product Type | Ethernet I/O Head Module / Communication Adapter |
| Dimensions (W x H x D) | 40 mm x 205 mm x 150 mm |
| Weight | 0.45 kg |
| Communication Ports | 2 x Ethernet RJ45 (10/100 Mbps, dual-port switch) |
| Network Protocols | Modbus TCP/IP, EtherNet/IP, HTTP, SNMP |
| Maximum I/O Words | 4,096 input words + 4,096 output words |
| Supported Racks | Up to 16 I/O drops per head |
| Cycle Time | 5 ms minimum (with local rack) |
| Bus Interface | Quantum backplane connector (X-bus) |
| Power Consumption | 1.2 A at 5 V DC (from backplane) |
| Firmware Storage | 8 MB Flash memory |
| Operating Temperature | 0 °C to +60 °C |
| Protection Class | IP20 |
| Configuration Method | Web-based interface or Unity Pro software |
Network Architecture and Communication Performance
The Schneider 140NOC78000C integrates dual Ethernet ports with an internal switch, allowing daisy-chain or ring topologies without external hubs. Its 10/100 Mbps auto-negotiation capability ensures compatibility with legacy and modern network infrastructure. The module handles up to 4,096 input words and 4,096 output words, supporting large-scale I/O configurations across multiple drops. Moreover, a 5 ms minimum cycle time delivers rapid update rates for time-critical processes.
Mechanical Integration and Rack Compatibility
This communication head occupies a single slot in the Quantum X-bus backplane and measures 40 mm in width, 205 mm in height, and 150 mm in depth. Its 0.45 kg weight maintains a balanced loading across the mounting chassis. The module connects directly to the backplane without requiring additional interface cards, simplifying system assembly. Front-facing LEDs provide immediate network status and diagnostic feedback.
Protocol Support and Configuration Flexibility
The Schneider 140NOC78000C supports Modbus TCP/IP and EtherNet/IP protocols, enabling seamless integration with SCADA systems and third-party controllers. An embedded web server allows configuration and monitoring through standard browsers, eliminating proprietary software requirements. Additionally, SNMP functionality facilitates integration with network management tools for enterprise-level oversight.
Power Consumption and Thermal Characteristics
This module draws 1.2 A from the 5 V DC backplane supply, reflecting its powerful processing capabilities. The 8 MB Flash memory stores firmware and configuration files permanently without battery backup. Operating across a 0 °C to 60 °C temperature range, the Schneider 140NOC78000C performs reliably in standard industrial environments.
Application Scope and System Scalability
This Ethernet head supports up to 16 remote I/O drops, offering substantial scalability for distributed control architectures. Its deterministic communication ensures synchronized data acquisition and actuator commands across large factory floors. Consequently, the Schneider 140NOC78000C excels in water treatment plants, material conveying systems, and automotive assembly lines.
Details
| Weight | 0.45 kg |
|---|---|
| Dimensions | 40 × 205 × 150 mm |
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