Schneider Electric 140-CPU-213-04 PLC Processor

Schneider Electric's Modicon Quantum CPU 140CPU21304 is a high‑performance PLC processor module designed for Quantum automation systems. This CPU delivers 768 KB of RAM (MATH MB+ memory) to support real‑time logic, arithmetic, and data handling within a compact, single‑rack chassis. Locally, it enables 64 input words and 64 output words across one I/O rack, with remote I/O capability up to 31 drops and support for up to three networks per system, making it suitable for distributed control in mid‑size applications. Node capacity per network is 30 inputs and 32 outputs, enabling scalable control across interconnected devices while preserving deterministic execution. Real‑time performance is specified with a logic solve time from about 0.3 ms per kiloinstruction to 1.4 ms per kiloinstruction, ensuring responsive sequencing and safety interlocks for automated equipment. For field communications, the CPU provides a Modbus RS‑232 serial port and a Modbus Plus RS‑485 network port, facilitating direct device integration and networked control within a Modicon ecosystem. Programming is performed with Schneider Electric's Concept software, with the latest compatible version for this model noted as Concept 2.6 SR7 by Schneider Electric's documentation. The 140CPU21304 sits squarely in the Quantum family as a robust control core for manufacturing automation and process control tasks where a single Quantum rack suffices, delivering proven hardware interfaces and reliable performance in demanding industrial environments.