The Schneider Electric 140CPU67261C is a flagship Modicon Quantum Unity Hot Standby CPU module, engineered for high-availability industrial automation systems where zero downtime is critical. Designed with redundancy at its core, this processor supports Hot Standby architectures, enabling seamless switchover between primary and backup controllers without interrupting operations.
With a powerful 266 MHz processor and advanced communication capabilities—including Ethernet, Modbus, Modbus Plus, and fiber optic synchronization—this CPU is built for large-scale, distributed control systems. It is widely deployed in industries where system continuity, data integrity, and real-time responsiveness are essential.
This model stands out as a premium solution for legacy Quantum systems requiring both performance and redundancy without migrating to newer platforms.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Model | 140CPU67261C |
| Product Type | CPU / Processor Module |
| Series | Modicon Quantum |
| Processor Type | Unity Hot Standby Processor |
| Clock Frequency | 266 MHz |
| Internal Memory | 11 MB RAM (approx.), 1.5 MB for data |
| Expandable Memory | Up to 8 MB via PCMCIA |
| Redundancy | Hot Standby supported |
| Communication Ports | Ethernet (RJ45), Modbus (RS232/485), Modbus Plus, Fiber Optic (LC) |
| Fiber Distance | Up to 16 km (single-mode) |
| Max Distributed I/O Stations | Up to 63 stations |
| Remote I/O Drops | Up to 31 drops |
| Discrete I/O Capacity | Up to 31,744 inputs / outputs |
| Analog I/O Capacity | Up to 1,984 inputs / outputs |
| Execution Speed | Up to 20K instructions/ms |
| Bus Current Requirement | ~2760 mA |
| Operating Temperature | 0°C to 60°C |
| Weight | ~0.5 kg |
| Dimensions | Approx. 250 mm × 100 mm × 50 mm |
This CPU is optimized for high-speed deterministic processing and large-scale distributed control systems.
Recommended Related Models
- Schneider 140CPU67260 – Similar Hot Standby CPU (lower configuration)
- Schneider 140CPU67160 – Standard Unity processor without full redundancy
- Schneider 140CPU65160 – High-end Quantum CPU variant
- Schneider 140CPS52400C – Redundant power supply module
- Schneider 140CRP93100 – Remote I/O communication processor
Popular Schneider Electric Models
- Schneider M580 BMEP58 series – Modern Ethernet-based PLC platform
- Schneider M340 BMXP342020 – Compact PLC controller
- Schneider 140CPU53414C – Mid-range Quantum CPU
- Schneider 140DDI35300 – Digital input module
- Schneider 140DAO84000 – Analog output module
These models reflect Schneider’s evolution from legacy Quantum systems to modern Ethernet-native PLC platforms.
