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The Schneider Electric Schneider Electric 140CPU21304 functions as a high-performance central processing unit within the Modicon Quantum automation platform. This controller manages complex logic, floating-point arithmetic, and extensive...
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The Schneider Electric Schneider Electric 140CPU21304 functions as a high-performance central processing unit within the Modicon Quantum automation platform. This controller manages complex logic, floating-point arithmetic, and extensive I/O scanning for large-scale industrial applications. It features integrated Modbus Plus ports to facilitate high-speed peer-to-peer communication and network programming. We supply this unit as 100% Brand New original equipment to ensure maximum lifecycle reliability for your control architecture.
| Parameter | Specification |
|---|---|
| Product Line | Modicon Quantum |
| Memory Capacity | 768 kB (Internal RAM) |
| Processor Clock Speed | 20 MHz |
| Communication Ports | 1 × Modbus Plus, 2 × Modbus (RS232/RS485) |
| Logic Execution | 0.1 µs per 1k instructions |
| Weight | 0.91 kg |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Battery Support | 3V Lithium cell for CMOS backup |
The internal processor handles arithmetic and logic operations with sub-microsecond execution times. This speed allows the 140CPU21304 to control high-speed motion and rapid-response safety interlocks without lag.
The native Modbus Plus port eliminates the need for external bridge modules. This integration reduces the hardware footprint and simplifies the configuration of global data exchange between multiple Quantum racks.
An onboard battery-backed RAM secures your application program and critical registers against power loss. This feature prevents data corruption and ensures a seamless “warm start” once power returns to the facility.
The rugged industrial design withstands ambient temperatures up to 60°C. High-grade internal components resist the thermal stress found in sealed electrical cabinets and heavy industrial environments.
Yes, this model often serves as a direct upgrade or replacement for legacy Quantum CPUs. Ensure you verify the firmware compatibility and memory requirements of your existing Concept or Unity Pro (EcoStruxure Control Expert) project before migration.
The 140CPU21304 primarily serves standalone or distributed I/O applications. For full process redundancy, Schneider typically recommends the 140CPU67160 or similar high-end Quantum models designed specifically for Hot Standby synchronization.
The physical key switch controls the CPU state and memory protection. It allows engineers to lock the memory to prevent unauthorized program changes while the controller remains in “RUN” mode during production.
