Schneider 140CPU43412A Programmable Logic Controller

Specific Parameters

Processor: 80486 architecture with a 66 MHz clock speed, integrated with a math coprocessor.

Memory: 896 KB internal RAM, expandable up to 2 MB.

Communication Interfaces: 1 Modbus Plus port (addressable 1–64 via a rear rotary switch) and 2 Modbus RS232 ports.

Power Supply: 1250 mA current requirement, supporting 24 V DC input.

Battery: 1.2 Ah lithium battery with a 10-year lifespan, supporting power consumption of 7 µA to 210 µA.

I/O Capacity: Local: up to 64 inputs/64 outputs; Remote: up to 64 inputs/64 outputs; Distributed I/O: supports 500 inputs/500 outputs.

Environmental Parameters: Operating temperature: 0–60°C; Storage temperature: –40–85°C; Relative humidity: 95% non-condensing; Altitude ≤ 5000 meters.

Certifications: FM Class 1 Division 2, CSA C22.2 No 142, and UL 508 certified.

Product Performance

Processing Speed: 0.1–0.5 ms per 1000 instructions, supporting fast logic and complex algorithm processing.

Programming Software: Compatible with development environments such as Concept, ProWorx NXT, ProWorx 32, and Unity, supporting IEC 61131-3 programming languages like ladder diagram and function block diagram.

Reliability: High Mean Time Between Failures (MTBF), with resistance to electromagnetic interference (9.14 V/yd) and electrostatic discharge (4 kV contact/8 kV air).

Redundancy Support: Can be configured for hot standby redundant systems to ensure continuity in critical applications.