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140CPU42402

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140CPU42402
May 16, 2026

140CPU42402

140CPU42402 General Information Manufacturer: Schneider Electric Part Number: 140CPU42402 Series: Modicon Quantum PLC Type: 32-bit Unity CPU Coating: Non-conformal coated Supported Software: Unity Pro, Concept Product Status: Discontinued legacy model

Description

140CPU42402

General Information

Manufacturer: Schneider Electric
Part Number: 140CPU42402
Series: Modicon Quantum PLC
Type: 32-bit Unity CPU
Coating: Non-conformal coated
Supported Software: Unity Pro, Concept
Product Status: Discontinued legacy model

Core Performance

Processor: Intel 80486, 66MHz
Total RAM: 2MB
Built-in Flash Memory: 256KB
Max User Program Capacity: 64K words
Boolean instruction speed: Approx 0.3ms per 1000 instructions
Hardware watchdog timer: Supported
Built-in real-time clock: Yes
Lithium backup battery service life: 10 years

I/O Specification

Maximum local digital I/O: 1024 points
Max distributed digital I/O: 8000 inputs / 8000 outputs
Max distributed analog I/O: 500 inputs / 500 outputs
Maximum remote network drops: 31
Supported local expansion racks: 2 sets

Communication Ports

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

Electrical Parameters

Backplane current draw: 1.8A @ 5.1VDC
Typical power consumption: 9W

Environmental Conditions

Operating temperature: 0°C ~ +60°C
Storage temperature: -40°C ~ +85°C
Relative humidity: 5%~95% RH, non-condensing
Max applicable altitude: 5000 meters

Mechanical Characteristics

Occupies: 1 standard slot
Hot-swappable: Yes
Net weight: 0.63kg

Main Features

  1. High capacity 2MB memory for large-scale control programs

  2. Dual Modbus Plus ports realize more convenient network interconnection

  3. Compatible with multiple programming software, strong compatibility

  4. Support redundant hot standby system configuration

  5. Rich extended communication interfaces to meet diverse networking demands

Certifications

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


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