Mitsubishi Electric Corporation Q03UDVCPU CPU Module

The Mitsubishi Electric MELSEC-Q Q03UDVCPU CPU module is a high‑speed universal PLC CPU from the MELSEC‑Q series designed for demanding industrial automation and control tasks. It combines processing, communication, and memory in a compact rack‑mounted module to enable fast scan times and support for large I/O configurations, commonly used in modular PLC racks for system control, upgrades, and replacements of earlier Q‑series CPUs. Key specs include 30K steps (120 KB) program capacity, local I/O points up to 4096 (8192 total with remote I/O), built‑in Ethernet and USB programming, and SD/SDHC card memory expansion up to 32 GB; programming languages supported are Ladder, Structured Text, Function Block, and SFC. Power is supplied from the base unit at 5 VDC with ~0.58 A current draw, and battery backup is supported for data retention. Dimensions are approximately 27.4 × 98 × 115 mm with a weight around 0.2 kg, and mounting is rack‑mounted in Q‑series bases. Typical applications include manufacturing lines, process automation systems, packaging equipment, and large‑scale machine control requiring high‑speed processing and reliable network connectivity. Common replacements in the MELSEC‑Q family include Q04UDVCPU, Q06UDVCPU, and Q03UDECPU.