Description

Schneider Electric 140CPU67160S Unity Safety Processor

Configured for Hot Standby safety control in the Modicon Quantum automation platform, the Schneider Electric 140CPU67160S (140CPU67160 Unity Safety Processor) provides direct physical and communication execution for redundant PLC architectures. The module integrates CPU processing, memory management, Ethernet connectivity, Modbus communication, and Hot Standby synchronization for deterministic controller operation.

Suffix Breakdown & Model Matrix

The supplied documentation identifies 140CPU67160S as the complete ordering reference and 140CPU67160 as the base processor model. No official suffix definition or ordering matrix is provided in the available technical data.

Hardware Specifications

Parameter	Specification
Model	140CPU67160S
Brand	Schneider Electric
Product Type	Unity Safety Processor
Series	Modicon Quantum Automation Platform
Software	Unity Pro XL Safety
Processor Frequency	266 MHz
User Memory	1024 kB Internal RAM (512 kB Data Memory)
Backup Battery	3 VDC Lithium Battery (990XCP98000)
Battery Capacity	1200 Ah
Battery Service Life	Up to 10 years
Number of Local Racks	1
Supported Rack Sizes	2, 3, 4, 6, 10, 16 slots
Remote I/O Stations	Up to 31
Maximum Remote Discrete I/O	31,744 Inputs / 31,744 Outputs
Maximum Remote Analog I/O	1,984 Inputs / 1,984 Outputs
Optional Ethernet Modules	Up to 6 x 140NOE77111
Integrated Interfaces	Ethernet TCP/IP, Modbus, Modbus Plus, USB
Ethernet Connections	1 Local Ethernet TCP/IP, 1 Hot Standby Ethernet
Modbus Connections	1 Local Modbus, 1 RS232/485 Modbus ASCII
USB Connections	1 USB Type B
Display	LCD, 2 x 16 Characters
Execution Time (Word)	0.09 to 0.12 us
Execution Time (Boolean)	0.105 to 0.15 us
Fixed-Point Arithmetic	0.96 to 1.02 us
1 K Instruction Execution	5.03 us (65 % Boolean, 35 % Numerical); 5.14 us (100 % Boolean)
System Overhead	1.5 ms Master Task
Bus Current Requirement	2500 mA
Supply Voltage	3 VDC (Lithium Battery)
Switch Function	Key Switch, Memory Port On/Off
Local Indicators	Ethernet COM LED, Ethernet ERR LED
Electrical Connections	USB Type B, Dual RJ45, 9-pin Sub-D Modbus Plus
Certifications	CE, CSA, C-Tick, TÜV Rheinland SIL3
Power Consumption	Bus Current 2500 mA

Backplane Communication and Firmware Compatibility

The processor exchanges controller data through the Modicon Quantum backplane while supporting Hot Standby synchronization using dedicated Ethernet communication with the 140NOE77111 module. Firmware compatibility should be maintained between redundant CPUs and associated communication modules before commissioning or processor replacement. During maintenance, processor firmware revisions should be verified to avoid synchronization mismatches within redundant controller pairs.

Frequently Asked Questions

Q: Can local I/O modules be used in a Hot Standby application?

A: The supplied specifications state that local discrete and analog I/O expansion is not permitted for Hot Standby applications. Remote I/O architecture is intended for redundant operation.

Q: Does the processor include integrated communication interfaces?

A: Yes. The processor provides integrated Ethernet TCP/IP, Modbus, Modbus Plus, and USB interfaces. Additional Ethernet capability can be expanded with up to six 140NOE77111 communication modules.

Q: Is processor memory retained during power removal?

A: Internal memory retention is supported by the specified 3 VDC lithium backup battery. Battery condition should be checked during scheduled maintenance to maintain memory retention.

Field Installation Guidelines

• Install the processor only after confirming compatibility with the Modicon Quantum rack and power supply.
• Verify the key switch position before downloading or modifying the application program.
• Use shielded communication cables where specified by the installation manual, and terminate cable shields according to the site grounding standard.
• Ensure Hot Standby processor pairs operate with matching firmware revisions before enabling redundancy.
• Confirm adequate backplane current capacity when adding communication modules to the rack.
• Replace the lithium backup battery only in accordance with the manufacturer's maintenance procedure to prevent unintended memory loss.

Specifications

• Brand: Schneider Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems