140CPU42401 (Quantum Unity CPU, non‑coated)

General

• Part No: 140CPU42401

• Series: Modicon Quantum

• Type: Unity Processor, 80486 DX4, 66 MHz

• Coating: Standard (non‑conformal)

• Programming: Unity Pro

• Status: Discontinued / Legacy

Core & Memory

• Processor: 32‑bit 80486 DX4, 66 MHz

• RAM: 1 MB (program + data)

• Flash: 256 KB

• Execution Speed: ~0.3 ms / 1K Boolean

• Hardware Watchdog: Yes

• RTC: Yes

• Battery Life: 10 years (typical)

I/O Capacity

• Local I/O: 1024 digital max

• Distributed I/O: 8000 In / 8000 Out (digital)

• Analog I/O: 500 In / 500 Out max

• Remote Drops: 31 max

• Local Racks: 2 max (main + extension)

Communication Interfaces

• 1× Modbus RS232 (DB9)

• 1× Modbus Plus (MB+) RS485 (DB9)

• 1× USB (programming/service)

• 2 expansion slots for comm modules (Ethernet, Profibus DP, etc.)

Electrical

• Backplane Current: 2.0 A @ 5.1 VDC

• Power Consumption: ~10 W

Environmental

• Operating Temp: 0 °C ~ +60 °C

• Storage Temp: −40 °C ~ +85 °C

• Humidity: 5–95% RH, non‑condensing

• Altitude: Up to 5000 m

Mechanical

• Slot: 1 slot (Quantum backplane)

• Hot Swap: Yes

• Weight: 0.65 kg

Key Features

• Unity Pro native, 32‑bit 66 MHz CPU for mid‑to‑large control systems

• 1 MB RAM + 256 KB Flash for moderate program size & data storage

• Onboard Modbus + MB+, plus 2 comm slots for network flexibility

• Supports redundant hot standby (with 140CHS series)

• Standard temperature range; no conformal coating

Certifications