Description
Product Introduction
The Schneider Electric Modicon Quantum 140NOE77101 is a high-performance Ethernet TCP/IP communication module engineered to connect Modicon Quantum automation systems to enterprise-level networks, SCADA systems, and peer-to-peer PLCs. Supporting 10/100 Mbps transmission rates over standard RJ45 copper media, it serves as a primary network gateway for high-speed industrial data exchange using open Modbus TCP/IP protocols.
Equipped with Schneider’s embedded FactoryCast web technology, the 140NOE77101 allows engineers to monitor system diagnostics, view PLC data tables, and access custom user HTML web pages directly via a standard web browser without specialized software. It offloads network communication processing from the main Quantum CPU, ensuring high-throughput data transfer across complex manufacturing control architectures.
Key Technical Specifications
| Parameter | Value |
| Manufacturer | Schneider Electric / Modicon |
| Part Number | 140NOE77101 |
| Platform | Modicon Quantum Automation Series |
| Module Type | Ethernet TCP/IP Network Option Module (FactoryCast) |
| Connectors | 1x RJ45 (10/100 Base-TX), 1x AU-D15 Transceiver Port (10Base-FL / 10Base-T) |
| Supported Protocols | Modbus TCP/IP, HTTP (Web Server), FTP, SNMP, ICMP (Ping), BootP / DHCP |
| Data Rate | 10/100 Mbps auto-negotiating |
| Web Server Features | Built-in FactoryCast (Diagnostic web pages, custom HTML support) |
| Max Ethernet Connections | Up to 64 concurrent Modbus TCP client/server connections |
| Bus Current Requirement | 750 mA maximum at 5 VDC |
| Diagnostics | Front panel LEDs for Module Status, Network Status, Link/Activity, 100 Mbps, Collision |
Application Scenarios & The “Trench” Experience
The Trench Story: It is 3:15 AM at an oil refinery tank farm. The SCADA system suddenly drops communication to the main Quantum PLC controlling Tank Farm West, triggering emergency operator alarms. The network switch shows an active link, but data requests are timing out. The on-call technician notices the “Kernel/Fault” LED flashing red on the existing 140NOE77100 card—its legacy network stack hung under a heavy broadcast storm. Swapping in a tested 140NOE77101 module with updated firmware, reassigning the IP address via the rotary switches, and cycling power restores SCADA telemetry in under 15 minutes.
Application Scenarios:
- SCADA & HMI Integration: Bridging central SCADA suites (Wonderware, Ignition, Citect) to local Quantum PLCs over Modbus TCP.
- Peer-to-Peer PLC Interlocking: Transferring critical interlock signals high-speed between distant Quantum racks across plant-wide Ethernet backbones.
- Remote Web Diagnostics: Allowing engineers to view real-time rack health and register tables remotely via standard web browsers.
- Enterprise ERP Data Harvesting: Interfacing manufacturing execution systems (MES) directly with plant-floor automation control loops.
140NOE77101
140NOE77101
Transparency SOP: Quality Assurance & Testing
We do not just ship boxes; we test them on actual Modicon Quantum backplanes. Every 140NOE77101 Ethernet module undergoes a strict 5-step validation procedure prior to stocking:
- Inbound Physical Check: Verification of backplane edge connectors, RJ45 port pins, transceiver port latches, front panel LED lenses, and OEM labels.
- Quantum Bus & Power Handshake: Seated in an active Quantum rack (e.g., 140CPU65160) to verify backplane bus initialization and power draw.
- Modbus TCP Stress & Ping Test: Assigning an IP address via BOOTP/DHCP and executing sustained high-frequency Ping (ICMP) and Modbus TCP read/write polling across 64 concurrent socket connections.
- FactoryCast Web Server Verification: Accessing the embedded web server via a browser to verify HTTP responsiveness, diagnostic page rendering, and internal memory integrity.
- ESD Clearance & Safe Packaging: Thoroughly cleaned, treated against static charge, sealed in static-shielding anti-static bags, and packed in high-density foam for safe delivery.
The Veteran’s Tech Trap Guide
⚠️ Set your MAC/IP address rotary switches correctly! The two rotary switches on the back/side of the module set the lower bytes of the MAC address and dictate whether the module fetches its IP address from internal flash or requests an IP from a BootP/DHCP server. Misconfiguring these switches will prevent the card from acquiring its static IP address.
❗ Watch out for IP address conflicts when replacing a card. The 140NOE77101 stores its runtime IP settings in memory or receives them from the CPU configuration (depending on Unity Pro / EcoStruxure Control Expert setup). If you swap modules without configuring the IP server or updating the MAC mapping in your DHCP server, the new card will default to 0.0.0.0 or lock out communication.
⚠️ Mind the firmware compatibility with Unity Pro. Ensure the firmware revision on the 140NOE77101 matches the module hardware configuration defined in your programming project (Concept, ProWORX, or EcoStruxure Control Expert). Mismatched major firmware revisions can cause Ethernet I/O scanner task failures.
❗ Isolate industrial Ethernet traffic from corporate LANs. The 140NOE77101 does not include onboard firewall hardware. Exposing this module directly to an unmanaged corporate network or the internet exposes the PLC to broadcast storms and unauthorized Modbus TCP write commands. Always place it behind an industrial security router or VLAN.
Frequently Asked Questions
Q: Can I hot-swap the 140NOE77101 module while the Quantum CPU rack is powered?
A: Yes, the Quantum platform supports Hot Swap (RIOC – Removal and Insertion Under Power). However, pulling the module will immediately drop all active Ethernet TCP connections and SCADA communications associated with that card.
Q: What is the main difference between the 140NOE77100 and the 140NOE77101?
A: The 140NOE77101 is an enhanced, updated version of the older 140NOE77100 module. It features upgraded internal memory, enhanced embedded web server functions (FactoryCast), and improved performance under high Modbus TCP network traffic.
Q: Does the 140NOE77101 support Global Data and I/O Scanning?
A: Yes, the 140NOE77101 supports Modbus TCP I/O Scanning and Global Data protocols, allowing automatic background data exchange between Quantum PLCs without complex user programming.
Q: How do I reset the IP address back to factory default?
A: You can set the module’s rotary switches to the “Clear IP” / default positions as specified in the Schneider Quantum hardware manual, power-cycle the rack, and reassign the IP using Schneider’s IP Configurator or BootP server tool.
Q: What warranty coverage do you provide on these discontinued Quantum Ethernet modules?
A: Every unit comes backed by our full 12-month operational warranty. We bench-test both physical network ports, Modbus TCP throughput, and the FactoryCast web server prior to dispatch.
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