Model Interpretation

140: Modicon Quantum series

CPU: Central Processing Unit

65260: 266 MHz, standard (non‑redundant), dual Ethernet, Unity firmware

Technical Parameters

Processor: 32‑bit PowerPC RISC, 266 MHz, math coprocessor

Execution Speed: Boolean 0.12 µs/inst; Mixed ~0.15 µs/inst

Memory:

Internal RAM: 3072 KB (program + data)

Flash: 1 MB (program storage)

Expandable: Up to 7168 KB program / 8 MB file via PCMCIA

Max I/O:

Discrete: 31,744 remote; 8,000 distributed

Analog: 1,984 remote; 500 distributed

Local: Unlimited (26 slots max)

Local I/O: 2 racks (10/16‑slot backplanes)

Remote I/O: 31 stations (RIO/DIO); 63 distributed I/O stations

Backplane Current: 2760 mA @ +5V

Operating Temp: 0°C to +60°C; Storage ‑40°C to +85°C

Dimensions: 130 × 80 × 60 mm; Weight ≈0.70 kg

Certifications: UL 508, CSA C22.2 No142, CE, FM Class1 Div2, Green Premium

Interface & Communication

Ethernet: 2 × RJ45, 10/100 Mbps, embedded switch, Modbus TCP/IP, EGD

Modbus Plus: 1 × SUB‑D 9‑pin (peer‑to‑peer)

Modbus Serial: 1 × RJ45 (RS‑232/485)

USB: 1 × USB 1.1 (local programming)

Protocols: Modbus TCP/RTU, EGD, BOOTP/DHCP, HTTP, FTP, SNMP

Core Functions

High‑Speed Processing: Optimized for large logic and analog control

Dual Ethernet Switch: Daisy‑chain topology, no external switch needed

Multitasking: 1 cyclic master + 2 periodic tasks (fast task 0.2 ms)

Integrated Diagnostics: LED status indicators (CPU, COM, RUN/ERR)

FDR: Faulty Device Replacement (hot‑swap I/O)

Applications

Systems: Modicon Quantum 140 series racks (140XBP backplanes)

Industries: Power, water treatment, oil/gas, chemical, pulp & paper

Use Cases: Large process control, SCADA, high‑speed interlocks, motion control

Compatibility

Racks: 140XBP010, 140XBP016 (10/16‑slot)

Software: EcoStruxure Control Expert, Unity Pro, ProWORX 32

Replacement: Successor is 140CPU65260 (no direct upgrade; migrate to M580)