Schneider 140CPU67160 | Modicon Quantum CPU | High-Performance PLC Selection for New Projects

Description

Key Technical Specifications

• Product Model: 140CPU67160
• Manufacturer: Schneider Electric
• System Family: Modicon Quantum PAC platform
• Processor Type: 32-bit RISC
• Program Memory: 4 MB (user-programmable)
• Data Memory: 4 MB
• Execution Speed: 0.12 µs per Boolean instruction
• Integrated Communication Ports: 2 × 10/100 Mbps Ethernet (Modbus TCP, EtherNet/IP via option), 1 × RS232 (Modbus RTU)
• Redundancy Support: Full hot-standby capability with 140CHS11000 or 140CHS11000/C synchronizing module
• Max Local I/O: 64 local modules (via backplane)
• Max Remote I/O: Supports up to 31 RIO drops (via 140CRP81100 or equivalent)
• Programming Software: EcoStruxure™ Control Expert (formerly Unity Pro)
• Certifications: UL, CSA, CE, ATEX (for specific configurations), IEC 61131-3 compliant

Core Performance and Selection Advantages

The Schneider 140CPU67160 delivers exceptional performance for demanding continuous process applications. Its 32-bit RISC architecture and optimized instruction set enable fast scan cycles even with complex logic, motion coordination, or PID loops—significantly outperforming legacy Quantum CPUs like the 140CPU43412A. With 4 MB each of program and data memory, it accommodates large application codebases and extensive historical data buffering without requiring external storage.

A key functional advantage is its dual embedded Ethernet ports, which eliminate the need for separate communication modules in most architectures. One port can handle engineering access and HMI traffic, while the other manages I/O or peer-to-peer messaging—enhancing network segmentation and cybersecurity posture. The CPU also natively supports Modbus TCP and can be extended to EtherNet/IP or PROFINET with optional communication coprocessors.

From a total cost of ownership (TCO) perspective, the 140CPU67160 reduces project complexity and hardware count. Its built-in redundancy capability avoids third-party failover solutions, and compatibility with existing Quantum I/O modules protects legacy investments during brownfield upgrades. Furthermore, programming in EcoStruxure Control Expert enables reusable function blocks and seamless integration with SCADA via built-in OPC UA server (with appropriate license), shortening commissioning time and lowering engineering effort.

System Integration and Scalability

The 140CPU67160 is programmed exclusively via Schneider’s EcoStruxure Control Expert, a unified IEC 61131-3 development environment that supports structured text, ladder logic, and function block diagram. The platform offers advanced debugging tools, version control integration, and simulation capabilities—accelerating development and reducing on-site troubleshooting.

For networking, the CPU supports open protocols including Modbus TCP (native), and with optional modules, EtherNet/IP or PROFINET. It includes an embedded web server for basic diagnostics and can serve real-time data via OPC UA (requires runtime license), enabling direct connectivity to MES, cloud historians, or enterprise dashboards without gateway devices.

Scalability is a hallmark of the Quantum platform. The CPU supports up to 64 local I/O modules on its backplane and can coordinate with remote I/O racks over fiber or copper using Modbus Plus or RIO protocols. In redundant configurations, switchover occurs in less than 30 ms, ensuring uninterrupted operation. Additionally, the system can coexist with Modicon M580 or M310 controllers in hybrid architectures, allowing phased migration paths while maintaining centralized asset visibility through EcoStruxure Resource Advisor.