Schneider Electric 140CPU67160S Quantum Safety PLC CPU

Product Description

The 140CPU67160S from Schneider Electric is a certified safety processor within the Modicon Quantum platform, specifically developed for safety-instrumented systems and high-availability control architectures. Built to operate with Unity Pro XL Safety software, this CPU supports SIL3-rated applications and enables integration of safety and standard control functions within a unified environment.

With a 266 MHz processor and 1024 kB internal RAM, the module is optimized for deterministic execution and fast response in critical processes. It is suitable for redundant (Hot Standby) system configurations and supports extensive remote I/O deployment across large-scale automation networks.

Core Technical Data

• Model: 140CPU67160S
• Manufacturer: Schneider Electric
• Platform: Modicon Quantum
• Processor Type: Unity Safety CPU (SIL3)
• Programming Software: Unity Pro XL Safety
• CPU Frequency: 266 MHz
• Internal Memory: 1024 kB RAM (512 kB reserved for data)
• Battery Type: Lithium (3V, model 990XCP98000)

Performance Characteristics

• Instruction Execution Time:
  • Boolean: 0.105 to 0.15 µs
  • Word operations: 0.09 to 0.12 µs
  • Fixed-point arithmetic: approx. 1.0 µs
• Processing Throughput:
  • ~5.14 ms per 1K Boolean instructions
  • ~5.03 ms mixed instruction set
• System Overhead:
  • 1.5 ms (master task cycle)

System Configuration & I/O Capacity

• Local Rack Support: 1 rack
• Remote I/O Stations: Up to 31 (single rack per station)
• Discrete I/O Capacity:
  • 31,744 inputs / 31,744 outputs (remote)
  • Local I/O supported but restricted in Hot Standby systems
• Analog I/O Capacity:
  • 1,984 inputs / 1,984 outputs (remote)

Communication & Interfaces

• Integrated Ports:
  • 1 × Modbus (RJ45)
  • 1 × Modbus Plus (SUB-D 9)
  • 1 × USB (Type B)
  • 1 × Ethernet TCP/IP (via 140NOE77111 for Hot Standby)
• Optional Communication Modules:
  • Up to 6 Ethernet modules (140NOE77111)
• Supported Protocols:
  • Modbus RTU/ASCII
  • Modbus Plus
  • Ethernet TCP/IP

Memory Expansion

• Program Memory: Expandable up to 7 MB via PCMCIA
• Data/File Storage: Expandable up to 8 MB
• Memory Protection: Key switch for memory port enable/disable

Electrical & Physical Characteristics

• Bus Current Requirement: 2500 mA
• Battery Voltage: 3 V DC
• Battery Capacity: 1200 mAh
• Estimated Battery Life: Up to 10 years
• Display: Integrated LCD (2 lines × 16 characters)
• Status Indicators:
  • Green LED (Ethernet activity)
  • Red LED (communication error/collision)

Compliance & Certification

• Safety Certification: TÜV Rheinland SIL3
• Standards & Approvals: CE, CSA, C-Tick
• Designed for safety-critical and hazardous environments

Application Areas

• Safety Instrumented Systems (SIS)
• Oil & gas production and refining
• Chemical and petrochemical plants
• Power generation facilities
• Critical process automation requiring SIL-rated control

FAQ

Q: Does this processor support SIL3 safety applications? A: Yes, it is TÜV-certified for SIL3 applications when used with Unity Pro XL Safety software.

Q: Can it be used in redundant systems? A: Yes, it supports Hot Standby architectures for high availability.

Q: Is local I/O fully supported? A: Local I/O is technically supported but may be restricted in redundant (Hot Standby) configurations.

Q: What type of battery is required? A: A 3V lithium battery (model 990XCP98000) is used for memory backup.