Schneider Electric

140CPU11303C

Modicon Quantum – Concept Processor Module

1. General Information

• Manufacturer: Schneider Electric

• Part Number: 140CPU11303C

• Series: Modicon Quantum PLC

• Type: Stand‑alone CPU (Concept / ProWORX 32)

• Processor: 80186, 20 MHz, no math coprocessor

• Coating: Conformal coated (Humiseal 1A33) – dust/moisture/chemical resistance

• Difference vs 140CPU11303: Same electrical/performance, C = coated

• Difference vs 140CPU11302C: 368 kB RAM (vs 109 kB) + 2×RS232 (vs 1×RS232)

2. Memory & Performance

• Internal RAM: 368 kB (user + system)

• User Logic: ~32 kB LL984

• Execution Speed: 0.3–1.4 ms / 1K LL984 instructions

• Watchdog Timer: 250 ms (hardware)

• Real‑Time Clock: ±8 s/day @ 0–60°C

• Backup Battery: 1.2 Ah lithium, 10‑year life

3. I/O Capacity

• Local I/O: 64 In / 64 Out max

• Distributed I/O: 30 In / 32 Out per drop

• Network I/O: 500 In / 500 Out total

• Distributed Drops: 63 max

• Remote Drops: 31 max

4. Communication Ports

• 2 × Modbus RS232 (dual serial ports)

• 1 × Modbus Plus (MB+, peer‑to‑peer network)

• On‑board Ethernet: No (add NOE module)

5. Electrical & Mechanical

• Backplane Current: 780–790 mA @ 5.1 VDC

• Operating Temperature: 0 °C to +60 °C

• Storage Temperature: −40 °C to +85 °C

• Humidity: 95% RH max, non‑condensing

• Altitude: Up to 5,000 m

• Dimensions: 103.9 × 40.3 × 250 mm

• Weight: 0.45 kg

• Mounting: 1 slot Quantum backplane, hot‑swappable

6. Key Features

1. Conformal coated (C suffix): harsh environment resistance (dust/moisture/chemicals)

2. 368 kB large RAM: bigger program/data than 11302C

3. Dual RS232: two serial ports for HMI + SCADA simultaneous connection

4. Modbus Plus: peer‑to‑peer networking with other Quantum/Modicon PLCs

5. Stand‑alone only: no redundancy (use 140CPU67160 for hot‑standby)

6. Long‑life battery: 10‑year RTC/memory backup

7. Certifications

• CE

• UL 508

• CSA C22.2 No 142

• FM Class 1 Div 2

• RoHS compliant

8. Ordering Notes

• 140CPU11303C: 80186/20MHz, 368 kB, 2×RS232+MB+, coated

• 140CPU11303: same, non‑coated

• 140CPU11302C: 109 kB, 1×RS232+MB+, coated

• 140CPU11302: 109 kB, 1×RS232+MB+, non‑coated