Schneider Electric 140CPU67160 hot standby CPU module

Schneider Electric  140CPU67160  hot standby CPU module

The following is a detailed introduction to the functional features of Schneider Electric's 140CPU67160 hot-standby CPU module:

1. Hot-Standby Redundancy Architecture

Dual-Machine Hot-Standby Mechanism

• Supports real-time synchronous operation of master/standby CPUs, exchanging data via high-speed redundant links (e.g., Unity Network).

• When the master CPU fails, the standby CPU automatically takes over control seamlessly within<100ms, ensuring uninterrupted system operation.

Application Scenarios

• Suitable for critical scenarios where downtime is not allowed, such as chemical, power, and rail transit industries.

• E.g., temperature control of reactor vessels in refineries, switch status monitoring in substations.

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2. High-Performance Computing CapabilityProcessor and Memory

• CPU: PowerPC 603e 266MHz, supporting complex algorithms and multitasking.

• RAM: 1024KB (including 512KB dedicated data storage), expandable to 8MB file storage and 7MB program storage.

Instruction Execution Speed

• Basic logic instructions execute in ~0.05μs, suitable for high-speed closed-loop control (e.g., servo motor positioning).

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3. Rich Communication InterfacesStandard Ports

• 1× Modbus RS232/485 (supports ASCII/RTU protocols)

• 1× USB 2.0 (for programming and debugging)

• 2× Distributed I/O interfaces (support Unity Network/SyncLink)

• 4× Remote I/O interfaces (e.g., S908 remote stations)

Expandable Networks

• Supported via optional modules:

• 6× Ethernet (TCP/IP, Modbus/TCP)

• 6× Profibus DP (master/slave mode)

• 6× Modbus Plus (supports 63 distributed nodes)

Application Value

• Connects PLCs, HMIs, SCADA systems, and third-party devices (e.g., frequency converters, smart meters) to build complex industrial networks.

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4. Integrated Display and Operation InterfaceLCD Display

• 2-line × 16-character backlit LCD shows:

• CPU status (Run/Stop/Fault)

• Real-time clock and date

• Key I/O point values or alarm messages

Physical Buttons

• 5 programmable buttons (mapped to specific memory addresses) for on-site emergency operations (e.g., shutdown, mode switching).

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5. Safety Certification and Reliability DesignSafety Rating

• Certified to SIL2 (complies with IEC 61508), supporting safety-related applications (e.g., emergency shutdown systems).

Environmental Adaptability

• Operating temperature: -25°C to +60°C

• Humidity: 5%–95% (non-condensing)

• Vibration resistance: 10–57Hz (1g), 57–200Hz (2g)

Data Protection

• Built-in lithium battery (12mAh) preserves RAM data for up to 10 years during power outages.

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6. Flexible Programming and DiagnosticsProgramming Languages

• Supports IEC 61131-3 standard languages:

• Ladder Diagram (LD)

• Function Block Diagram (FBD)

• Structured Text (ST)

• Sequential Function Chart (SFC)

Diagnostic Functions

• Real-time monitoring of CPU load and memory usage

• Online detection of I/O module faults (LED indicators + system logs)

• Remote diagnostics via Ethernet or Modbus

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7. Modular Expansion CapabilityLocal I/O Expansion

• Supports 27-slot local backplanes, configurable with digital/analog I/O modules, communication modules, etc.

Distributed Architecture

• Connects up to 63 remote I/O stations via Unity Network or Profibus DP, with maximum I/O points per station:

• Digital: 8,000 points

• Analog: 1,984 points

Typical Application Scenarios

• Power Systems: Substation automation, generator synchronization control

• Chemical Processes: Reactor temperature/pressure closed-loop control, emergency shutdown systems

• Rail Transit: Signal system redundancy control, platform screen door monitoring

• Metallurgy: Rolling line speed synchronization, heating furnace temperature regulation

• Municipal Engineering: Multi-pump  in sewage treatment plants, remote pump station monitoring

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Comparison with Other Models

Conclusion