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Mitsubishi Electric Q04UDVCPU MELSEC Q Series CPU Module

Mitsubishi Electric Q04UDVCPU MELSEC Q Series CPU Module

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  • Manufacturer: Mitsubishi Electric

  • Product No.: Q04UDVCPU

  • Country of origin:United States

  • Product Type: PLC CPU Modules

  • Payment: T/T, Western Union

  • Weight: 22000g

  • Dimensions: 98 mm x 27.4 mm x 115 mm

  • Shipping port: Xiamen

  • Warranty: 12 months

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Description

Optimized for high-speed sequence processing within demanding manufacturing lines, the Mitsubishi Electric Q04UDVCPU delivers exceptional instruction speeds and native Ethernet connectivity for modern MELSEC Q Series architectures. This Universal model is designed to handle multi-discipline control configurations, enabling rapid sequence execution, integrated communications, and flexible memory management. With its advanced processing backplane, it reduces system cycle times and provides direct support for modern field bus architectures and host-level databases.

Key Features

  • High-speed basic instruction execution (approx. 1.9 ns per step).
  • Generous program capacity of 40K steps to support complex process logic.
  • Built-in 100BASE-TX/10BASE-T Ethernet port for seamless integration with SCADA, HMI, and industrial networks.
  • Integrated SD/SDHC memory card slot for flexible data logging, firmware updates, and program backups.
  • Multi-language support conforming to IEC 61131-3, including Structured Text (ST), Sequential Function Chart (SFC), and Ladder Logic.

Applications

  • Automotive assembly lines requiring synchronized, multi-axis coordination.
  • High-speed packaging machinery and automated sorting systems.
  • Water treatment facilities and distributed pump stations.
  • Semiconductor fabrication material handling and environmental monitoring.

Technical Specifications

Parameter Specification
Manufacturer Mitsubishi Electric
Model Code Q04UDVCPU
Series MELSEC Q Series (High-Speed Universal Model QCPU)
Control Method Stored program cyclic operation
I/O Processing Mode Refresh mode
Program Capacity 40K Steps
I/O Device Points [X/Y] 8192 Points
Physical I/O Points [X/Y] 4096 Points
Internal Current Consumption (5 VDC) 0.58 A (Base CPU), 0.60 A (with SRAM cassette installed)
Memory Card Interface SD and SDHC Memory Cards
Dimensions (H x W x D) 98 mm x 27.4 mm x 115 mm
Weight 0.20 kg
Country of Origin Japan

Connections and Interfaces

Interface Type Connector / Format Functional Assignment
Ethernet Port RJ45 (10BASE-T/100BASE-TX) Host network communication, HMI link, and programming interface
USB Port Mini-B USB (USB 2.0 High Speed) Direct programming, system diagnostic monitoring, and parameter download
SD Card Slot Standard SD Card Slot CSV data logging, system restoration, and parameter retention

Empirical Engineering Insights

Alternative Models & Compatibility

The Q04UDVCPU is a direct functional upgrade from the older Q04UDEHCPU. Key improvements include a transition from standard SRAM/Flash memory cards to standardized SD/SDHC cards, as well as a dramatically optimized bus cycle speed. When migrating code from "UDEH" models to the newer "UDV" series in GX Works2, execute a "Change PLC Type" operation and verify the Ethernet open ports setting, as the socket communication parameters may require minor adaptation due to the upgraded internal Ethernet chip capabilities.

Application Pitfalls & Engineering Notes

In applications with high levels of industrial noise, the built-in Ethernet port must be configured with proper noise countermeasures. Ensure that any communication timeouts are set slightly higher if the CPU is heavily polled by concurrent SCADA and third-party OPC servers, as the TCP stack on the built-in Ethernet port can face socket resource exhaustion if connection releases are not managed cleanly in code.

Commissioning & Wiring Tips

Always use high-quality shielded twisted-pair (STP) cables for the Ethernet connections. Ensure the main Q-Series rack is securely grounded to the cabinet's master functional earth bus using a heavy gauge, low-impedance conductor. This grounding mitigates potential high-frequency noise spikes from nearby variable frequency drives (VFDs) from disrupting high-speed cyclic processing.

Installation Guidelines

CRITICAL WARNING: ELECTRICAL RISK

Disconnect all primary AC and auxiliary DC power sources before attempting to mount or unmount the CPU module from the base unit. Failure to fully de-energize the rack before slot insertion or removal can result in catastrophic internal backplane damage and module failure.

1

Inspect the main base unit backplane female connectors for debris or misaligned pins before physical installation.

2

Hook the bottom mounting projection of the CPU module into the base unit's guide hole, aligning the module parallel to the rack.

3

Push the top of the module firmly onto the backplane connector until it clicks securely into position. Tighten the module fixing screw to prevent mechanical vibration displacement.

What is the primary difference between the Q04UDVCPU and the older Q04UDEHCPU?

The UDV version features a significantly faster instruction execution engine, built-in support for SD/SDHC cards instead of older proprietary memory cards, and enhanced built-in Ethernet diagnostic protocols.

Which software is required to program this CPU module?

Programming and configuration require Mitsubishi GX Works2 or GX Works3 within the MELSOFT software suite.

Does the module require a battery to retain the program?

No, the user program and parameter files are stored in non-volatile Flash ROM. However, a Q6BAT battery is required to retain latch device states, clock data, and standard RAM variables.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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