Product Details:

Schneider 140CPU43412A is a rack-mounted CPU processor module for the Modicon Quantum automation platform. Powered by a 66MHz 80486 processor with built-in math coprocessor and 896kB RAM, this PLC controller executes user logic programs, processes I/O signals and handles multi-network communication tasks. It comes with one Modbus Plus port and two Modbus RS232 ports, supporting stable data exchange with HMI, SCADA, remote I/O and other industrial control devices. The module supports ProWORX32 and Concept programming software, and includes watchdog timer and data backup functions to protect program data during power loss. Built-in system self-diagnostic functions detect rack bus, I/O and internal hardware faults, outputting fault status for fast maintenance troubleshooting. Industrial-grade circuit design offers strong vibration and electromagnetic interference resistance, reliable for continuous operation in power plants, petrochemical plants and manufacturing sites. Installed in standard Quantum rack slots, this CPU communicates with backplane and various I/O modules to build a complete distributed control system. Widely adopted in process automation industries, this Modicon processor is core control hardware for industrial automation systems. It helps operators achieve stable continuous process control, monitor equipment status in real time, reduce unplanned shutdown risks and support plant predictive maintenance strategy.

Core Attributes:

Brand: Schneider

Model: 140CPU43412A

Product Type: Modicon Quantum PLC CPU Processor Module

Compatible System: Schneider Modicon Quantum PLC rack system

Processor: 80486, 66MHz with math coprocessor

Memory: 896kB RAM

Communication Port: 1 × Modbus Plus, 2 × Modbus RS232

Function: User logic execution, I/O data processing, multi-port industrial communication, system self-diagnosis, program data backup

Mounting: Standard rack slot installation

Operating Temperature: 0°C ~ +60°C

Feature: Multi communication ports, watchdog protection, industrial anti-interference, supports ProWORX32 and Concept software