140CPU53414B (Modicon Quantum CPU) – English

General

• Manufacturer: Schneider Electric

• Part No: 140CPU53414B

• Series: Modicon Quantum (legacy high-end PLC)

• Processor: 32-bit 80486 with FPU (math coprocessor)

• Clock: 100 MHz

• Coating: Conformal coated (Humiseal 1A33)

• Software: Concept, ProWORX 32 (not Unity compatible)

• Status: Discontinued / Legacy

• Key: B = conformal coating; different firmware from non-B

Core & Memory

• RAM: 2972 KB (2.9 MB) (program + data)

• Logic Speed: 0.1–0.5 ms / 1K LL984 instructions

• Watchdog: 250 ms (hardware)

• RTC: Yes (drift ±8 s/day @ 0–60 °C)

• Battery: 3 V lithium, 1.2 Ah, 10 years life

I/O Capacity

• Local I/O: 64 In / 64 Out (max)

• Distributed I/O: 500 In / 500 Out per network

• Remote Drops: 31 remote / 63 distributed

• Local Racks: Up to 2

Communication Interfaces

• 1 × Modbus Plus (MB+) RS485 (DB9)

• 2 × Modbus RS232 (DB9)

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

Electrical

• Backplane Current: 1.25 A @ 5.1 VDC

• Power Consumption: ~6.25 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 standard Quantum slot

• Hot Swap: Yes

• Weight: 0.85 kg

• Key switch: Yes

140CPU53414B vs 53414A (Quick)

• 53414B: 100 MHz, conformal coated, 80486

• 53414A: 133 MHz, non-conformal, 80586 (faster)

• Both: 2.9 MB RAM, same I/O/comm, non-Unity

Certifications