Mitsubishi Q04UDVCPU Q Series CPU | Industrial Spare Part

The Mitsubishi Electric Q04UDVCPU is a High-Speed Universal model QCPU programmable logic controller engineered for the MELSEC-Q Series automation platform, featuring high-speed sequence execution, built-in Ethernet connectivity, SD/SDHC memory card support, and 40K steps program capacity.

Key Technical Specifications

• Manufacturer: Mitsubishi Electric
• Model / Catalog Number: Q04UDVCPU
• Product Series: MELSEC-Q Series (High-Speed Universal Model QCPU)
• Program Capacity: 40K steps (160K bytes, per Mitsubishi Electric official QnUDVCPU product specifications)
• Basic Instruction Processing Speed: 1.9 ns (0.0019 µs) for basic LD X0 instruction (indicative basic execution speed; does not represent total scan cycle)
• Number of I/O Points: 4096 (X/Y0 to X/YFFF, per official MELSEC-Q hardware specifications)
• Number of I/O Device Points: 8192 (X/Y0 to X/Y1FFF, per official hardware specifications)
• Internal Current Consumption (5V DC): 0.58 A (The stated 0.58 A is the CPU module baseline consumption without an optional extended SRAM cassette. If the cassette is installed, account for its additional 5V DC consumption when sizing the power supply module)
• Built-in Communication Interfaces: 1x 100BASE-TX / 10BASE-T Ethernet interface (RJ45 connector; communication capabilities, socket connections, and cable rules per applicable Mitsubishi Electric Ethernet technical manuals) and 1x USB Mini-B programming interface (intended for CPU programming and engineering maintenance per official hardware documentation)
• Memory Card Interface: 1x SD / SDHC memory card slot supporting up to 32 GB (actual usable capacity and file operations depend on formatted SD card specifications and system configuration). SD cards, backup batteries, and base mounting hardware are not assumed to be included unless explicitly confirmed in the formal quotation
• Multi-CPU Support: Multi-CPU configurations require verification of compatible MELSEC-Q main base unit models and system engineering rules per official QCPU Multi-CPU System documentation
• Engineering Software: Project engineering and program compilation require compatible versions of GX Works2 (Version 1.98C or later per official Mitsubishi Electric software compatibility documentation). Engineering verification of firmware revision and software project settings is recommended prior to deployment

System Configuration and Application Notice

The Q04UDVCPU is a high-speed universal industrial automation processor designed for standard control applications. It is not a certified safety PLC (safety-critical applications requiring certified SIL ratings utilize dedicated MELSEC safety controllers such as the QS001CPU). The Q04UDVCPU mounts into compatible MELSEC-Q Series main base units. Calculate total 5V DC internal current consumption (CPU module consumption: 0.58 A base plus optional extended SRAM cassette consumption if mounted, plus all mounted I/O and intelligent function modules) against the rated capacity of the power supply module before installation.

Product Lifecycle and Migration Reference

Official product-page status: On sale. Current production status, regional availability, and stock are not independently confirmed. Confirm current production arrangements, regional lead times, and warranty terms with Mitsubishi Electric or its authorized regional sales organization before placing orders.

Migration reference: Mitsubishi Electric's MELSEC-Q Series to MELSEC iQ-R Series Migration Guide (L(NA)08510ENG-H, Section 2.1) lists the R04CPU (MELSEC iQ-R Series) as a reference migration option. Concurrently, technical bulletin FA-A-0147-D outlines precautions for replacing earlier QnUD(E)(H)CPU units with QnUDVCPU processors. Any modernization or migration requires independent engineering evaluation of program execution speed differences, base unit configuration, power supply margins, network architectures, and I/O timing. Migration references are provided for system planning and do not represent guaranteed drop-in replacements.

Manufacturer lifecycle listings do not indicate current inventory or availability at Northlink. Unit condition (new, surplus, or refurbished), hardware revision, included accessories, warranty terms, and lead times are confirmed solely during formal quotation.

Northlink accepts sourcing inquiries for industrial spare parts intended for maintenance, emergency replacement, and equipment continuity.

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Submit an inquiry with catalog number Q04UDVCPU, required quantity, destination country, and application specifications.

Technical parameters are provided for model identification and engineering reference. Always verify the physical unit nameplate and official manufacturer technical literature prior to installation.