Schneider 140NOC78100C Quantum Ethernet Module

140NOC78100C Technical Overview

Product Introduction

The Schneider Electric 140NOC78100C provides seamless networking capabilities for the Modicon Quantum automation platform. This Ethernet control module acts as a bridge between the PLC and high-level IT networks. It ensures reliable data exchange using standard twisted pair cabling with RJ45 ports.

Key Technical Specifications

The 140NOC78100C operates with robust communication features. It runs in full duplex mode, which allows data to be sent and received simultaneously. Furthermore, this module supports a flexible transmission rate of either 10 Mbit/s or 100 Mbit/s. Specifically, users can rely on its maximum connection capacity of 64 simultaneous links.

Regarding protocols, the device natively handles EtherNet/IP and Modbus TCP. This dual-protocol support makes it highly adaptable to mixed environments. Additionally, the hardware includes an embedded web server for easy remote diagnostics. You can also use the embedded 4-port switch to daisy-chain multiple devices without extra switches.

Reliability and Redundancy Features

This module supports a Hot Standby Redundant Architecture. Therefore, if the primary module fails, a secondary unit takes over instantly. This feature is critical for continuous process applications. The 140NOC78100C also supports Redundant Ring Topology and the Daisy Chain Loop. These topologies prevent network collapses from single cable breaks.

Moreover, the Rapid Spanning Tree Protocol (RSTP) is supported. This service ensures fast recovery times in complex ring configurations. For maintenance teams, the front panel provides clear local signaling. You will find LEDs for Module Status (Mod Status) and Network Status (Net Status).

Communication Services

This module offers many advanced communication services. For instance, it includes a DHCP/BootP server for automatic IP assignment. It also supports SNMP agent for network management systems. Meanwhile, the NTP time synchronization keeps all devices on the same clock.

Another critical service is CIP implicit messaging for I/O data transfer. You also get CIP explicit messaging for configuration tasks. For cybersecurity, the Quality of Service (QoS) feature prioritizes important packets. Finally, the SMTP e-mail notification sends alerts directly to operators.

Mechanical and Environmental Parameters

The 140NOC78100C is built for industrial durability. It operates reliably within an ambient temperature range of 0°C to 60°C. However, it can withstand storage temperatures from -40°C to 85°C. The unit carries an IP20 protection rating, making it suitable for clean control cabinets.

Its net weight is only 0.345 kg (0.761 lb). The module receives power directly through the rack's backplane. This design eliminates the need for a separate power supply. Additionally, the board is coated for protection against humidity and dust. You can mount it easily in any standard Quantum rack slot.

Frequently Asked Questions (FAQ)

1. Is the 140NOC78100C compatible with a 140CPU43412?
Yes, the 140NOC78100C is compatible with all 140CPU6xxxx series processors. For older CPUs like the 140CPU43412, please verify the firmware version supports EtherNet/IP scanning.

2. Can I use this module for real-time motion control?
No, this module focuses on standard I/O and messaging services. For motion control, consider dedicated SERCOS or CANopen modules. However, it works fine for drive parameter access via Modbus TCP.

3. How many daisy-chained devices can I connect?
The module supports up to 64 total connections. In a daisy chain, each hop introduces slight latency. Generally, we recommend no more than 20 devices in a single chain to maintain performance.

4. Does this module require a separate power supply?
Not at all. The 140NOC78100C draws all necessary power directly from the Quantum rack's backplane. Just plug it into the slot, and it will power on automatically.

5. What is the difference between Net Status 1 and Net Status 2 LEDs?
Net Status 1 indicates the primary Ethernet port status. Net Status 2 shows the status of the extended DIO network. This separation helps diagnose ring topology issues quickly.