Product Overview
Industrial networks stall when a single communication module cannot handle the connection load. The 140NOC77100 from Schneider Electric solves that problem. This Modicon Quantum network module speaks EtherNet/IP, the protocol many plant-floor devices already use. It supports up to 128 simultaneous connections, so you can link controllers, drives, and I/O without adding extra hardware.
Oil AutoTech supplies this module as a ready-to-ship spare for oil, gas, and automation teams that cannot wait on long lead times.
Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | Schneider Electric |
| Product Line | Modicon Quantum |
| Part Number | 140NOC77100 |
| Product Type | Network Module |
| Communication Protocol | EtherNet/IP |
| Maximum Connections | 128 |
| Transmission Rate | 10/100 Mbit/s |
| Transmission Medium | Twisted Pair |
| Port | Ethernet RJ45 |
| Local Signalling | LED |
| Current Consumption | 500 mA |
| Degree of Protection | IP20 |
| Standards | UL 508 |
| Supply | Via the Power Supply of Rack |
What the Key Specs Mean in Practice
The 128-connection ceiling matters when your network grows. Instead of cascading switches, one module handles the load. The 10/100 Mbit/s rate keeps data moving between devices at speeds most control tasks demand. The RJ45 port uses standard twisted-pair cabling, so your existing Ethernet infrastructure works without adapters. At 500 mA, the module draws modest current from the rack supply, leaving headroom for other modules. The IP20 rating suits clean, indoor cabinets where dust and moisture stay controlled.
Where the 140NOC77100 Fits
Oil and Gas Control Rooms
EtherNet/IP links PLCs, HMIs, and remote I/O across a control room. The 128-connection capacity means you can bring multiple skids onto one network segment without extra hardware. For teams replacing aging communication cards, this module restores network throughput fast.
Manufacturing Automation
Assembly lines rely on fast data exchange between drives and controllers. The 10/100 Mbit/s rate supports that traffic. The LED indicators give technicians a quick visual check of link status during startup or troubleshooting.
Upgrading Legacy Networks
Plants moving from serial to Ethernet often need a bridge module. The 140NOC77100 slots into a Modicon Quantum rack and speaks EtherNet/IP natively, so you avoid protocol converters.
Installation and Setup
Mount the module in a Modicon Quantum rack. Power comes from the rack supply, so no separate wiring is needed. Connect a standard twisted-pair cable to the RJ45 port. Check the LED indicators to confirm link and activity. Keep the cabinet clean and within IP20 conditions. For network integration, confirm gateway or connection module requirements with your supplier before commissioning.
Maintenance and Reliability
Inspect the module periodically for loose connections and LED status. Keep the cabinet free of dust and moisture. The IP20 rating means the module belongs in a protected enclosure, not on an open panel. Because it draws only 500 mA, thermal load stays low. That reduces stress on the rack power supply and extends service life.
Selection Checklist
Before ordering, verify your rack accepts Modicon Quantum modules. Confirm your network uses EtherNet/IP. Check that your cable plant supports twisted-pair Ethernet with RJ45 connectors. If you need spares when you need them, Oil AutoTech offers fast dispatch, worldwide. Contact Oil AutoTech today for pricing and availability.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
