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140CPU43412UC

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140CPU43412UC
May 16, 2026

140CPU43412UC

140CPU43412UC General Information Manufacturer: Schneider Electric Part Number: 140CPU43412UC Series: Modicon Quantum PLC Type: 32-bit Unity Universal CPU Coating: Conformal Coated Supported Software: Unity Pro Product Status: Discontinued legacy model Definition: UC = Universal version with conformal coating

Description

140CPU43412UC

General Information

Manufacturer: Schneider Electric
Part Number: 140CPU43412UC
Series: Modicon Quantum PLC
Type: 32-bit Unity Universal CPU
Coating: Conformal Coated
Supported Software: Unity Pro
Product Status: Discontinued legacy model
Definition: UC = Universal version with conformal coating

Core Performance

Processor: Intel 80486, 66MHz
Total RAM: 1056KB
Built-in Flash Memory: 256KB
Boolean instruction speed: 0.3μs per instruction
Hardware watchdog timer: 250ms
Built-in real-time clock: Supported
3V lithium backup battery, 10 years service life

I/O Specification

Max local I/O: 64 inputs / 64 outputs
Max distributed digital I/O: 8000 inputs / 8000 outputs
Max remote network drops: 63
Supports 2 sets of local expansion racks

Communication Interfaces

1 x Modbus Plus (MB+) interface
2 x Modbus RS232 interfaces
1 x USB programming port
2 reserved slots for extended communication modules

Electrical Parameters

Backplane current draw: 1.25A @ 5.1VDC
Typical power consumption: 6.4W

Environmental Conditions

Operating temperature: 0°C ~ +60°C
Storage temperature: -40°C ~ +85°C
Relative humidity: 5%~95% RH, non-condensing
Max working altitude: 5000 meters
Conformal coated for moisture, dust and corrosion resistance

Mechanical Characteristics

Occupied slot: 1 standard slot
Hot-swappable: Yes
Net weight: approx 0.65kg

Main Features

  1. Universal enhanced firmware with larger memory capacity

  2. Conformal coated design suitable for harsh industrial sites

  3. Multiple serial ports meet multi-device communication needs

  4. Powerful distributed control function with up to 63 remote stations

  5. Supports redundant hot standby system, same model required for pairing

  6. Flexible network expansion through external communication modules

Certifications

CE, UL508, CSA C22.2 No.142, FM Class1 Div2, RoHS compliant


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