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Phone：+86 15383419322Description
The Schneider Electric 140NOM21100 is a Modbus Plus Network Option Module designed for seamless integration with Modicon Quantum PLCs. This communication interface enables high-speed deterministic data exchange (1 Mbps) between Quantum controllers and legacy Modbus Plus devices. The 140NOM21100 features dual RG-58 coaxial ports for daisy-chaining up to 64 nodes over 450 meters without repeaters. Its token-passing protocol ensures predictable response times for real-time control applications. Engineered for industrial environments, the module operates at -40°C to +70°C with 95% humidity tolerance and withstands 5g vibrations. The Schneider Electric 140NOM21100 simplifies migration strategies by bridging Modbus Plus networks to modern Ethernet architectures while maintaining deterministic performance critical for process synchronization.
140NOM21100 SCHNEIDER
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 140NOM21100 |
| Manufacturer | Schneider Electric |
| Product Type | Network Communication Module |
| Protocol | Modbus Plus (MB+) |
| Data Rate | 1 Mbps |
| Topology | Bus (Daisy-chain) |
| Max Nodes | 64 per segment |
| Max Distance | 450 m (without repeaters) |
| Connectors | 2x BNC (RG-58 coaxial) |
| Isolation | 1500 Vrms |
| Backplane Current | 350 mA @ 5VDC |
| Operating Temperature | -40°C to +70°C |
| Humidity Tolerance | 5-95% non-condensing |
| Certifications | UL 508, CE, cULus |
| Dimensions | 128 x 56 x 117 mm (H x W x D) |
| Mounting | Quantum rack slot |
Main Features and Advantages
Deterministic Performance: Token-passing protocol guarantees maximum 150ms node access time for time-critical processes like conveyor synchronization.
Redundant Connectivity: Dual coaxial ports enable loop-free daisy-chaining. Automatic termination sensing simplifies network expansion.
Robust Electrical Isolation: 1500V galvanic isolation protects the PLC backplane from ground loops and surges in electrically noisy plants.
Legacy Integration: Transparently bridges Quantum CPUs to existing Modbus Plus devices (drives, HMIs, sensors) without reprogramming.
Diagnostic Visibility: Front-panel LEDs provide real-time status for network activity, token possession, and fault conditions.
Application Field
The Schneider Electric 140NOM21100 enables deterministic control in hybrid automation environments. In water treatment plants, it connects Quantum PLCs to legacy pump station controllers across large campuses. Manufacturing facilities use it to synchronize packaging lines where older drives communicate via Modbus Plus.
Power distribution systems leverage the module for real-time data exchange between protection relays and SCADA. In material handling, the 140NOM21100 coordinates AS/RS cranes with millisecond-precise positioning commands. Mining operations benefit from its extended temperature range for conveyor control in desert installations. The module’s noise immunity makes it ideal for steel mills where arc furnaces generate severe EMI.
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