Mitsubishi Q04UDEHCPU 8192 points 40 k steps Redundant Power Supply Module
Q04UDEHCPU Description
The Q04UDEHCPU is a high-performance universal Ethernet-integrated CPU module from Mitsubishi Electric’s MELSEC-Q Series, designed for mid-range industrial automation control systems. It delivers ultra-fast sequence processing (9.5 ns per basic LD instruction), supports up to 4096 I/O points and 8192 device points, with a 40K-step program memory capacity (160 KB). Built-in 10/100 Mbps Ethernet, USB, and memory card interfaces enable seamless programming, monitoring, data logging, and high-speed multi-CPU communication. Optimized for modular Q-series backplane mounting, it supports multi-CPU parallel control, high-precision motion synchronization, and industrial network connectivity (Ethernet/IP, MC Protocol, FTP), making it ideal for distributed control, factory automation, and high-speed machine control applications.
Q04UDEHCPU Key Features
- Ultra-High Processing Speed: Basic sequence instruction (LD X0) execution at 9.5 ns, delivering exceptional response for high-speed, high-precision control.
- Large I/O & Memory Capacity: Supports max 4096 I/O points, 8192 device points, 40K-step program memory (160 KB), and expandable via memory cards (RAM/ROM/Flash).
- Built-in Ethernet & USB: Integrated 10/100BASE-T Ethernet port for network programming, MC Protocol, Ethernet/IP, FTP, and remote monitoring; USB port for direct PC connection and fast program transfer.
- Multi-CPU High-Speed Communication: Supports up to 4 CPUs on the Q-series backplane with 0.88 ms cycle high-speed data transfer, enabling parallel motion/sequence control and system scalability.
- High-Precision Interrupt Control: Fixed-cycle interrupt down to 100 µs, supporting high-speed pulse capture, positioning, and real-time process control.
- Robust Industrial Connectivity: Compatible with CC-Link, CC-Link IE, Modbus TCP, and other fieldbuses; supports intelligent function modules (positioning, counter, analog I/O).
- Built-in Real-Time Clock (RTC): Battery-backed for accurate time stamping, data logging, and scheduling without external modules.
- Wide Environmental & Safety Compliance: Industrial-grade design with vibration/shock resistance; certified to UL/cUL, CE (EMC/RoHS), KC, LR, DNV, ABS for global deployment.
- Easy Programming & Maintenance: Works with Mitsubishi GX Works2/GX Works3 software; supports online program editing, monitoring, and fault diagnostics.
Q04UDEHCPU Materials & Applications
Materials
- Housing & Enclosure: High-strength, flame-retardant reinforced engineering plastic (UL94 V-0), anti-static, dust-resistant, suitable for industrial control cabinets.
- Circuit Board: Multi-layer FR-4 PCB with industrial-grade SMD components, conformal coating for moisture/corrosion protection.
- Backplane Connector: Gold-plated high-current contacts for reliable Q-series backplane bus connection and signal integrity.
- Internal Components: High-speed RISC processor, Ethernet controller, USB transceiver, opto-isolated I/O buffers, and non-volatile memory for program/data retention.
- Terminals & Interfaces: Industrial-grade Ethernet (RJ45), USB (Type B), and memory card slots with dust covers for harsh environment protection.
Typical Applications
- Factory Automation: Assembly lines, conveyor systems, packaging machines, material handling, and automated production lines.
- Machine Tools: CNC machines, grinding machines, injection molding machines, and high-speed positioning systems.
- Motion Control Systems: Multi-axis servo/motor control, robotic arms, and precision positioning equipment.
- Process Control: Water treatment, food processing, pharmaceutical manufacturing, and chemical plant monitoring.
- Distributed Control Systems (DCS): Remote I/O, data acquisition, SCADA integration, and industrial networked control.
- Specialty Machinery: Printing, textile, semiconductor handling, and automotive assembly equipment.
Q04UDEHCPU Important Parameters
| Parameter |
Specification |
| Part Number |
Q04UDEHCPU |
| Product Series |
MELSEC-Q Series Universal High-Speed Ethernet CPU |
| Control Method |
Sequential, motion, process, and multi-CPU parallel control |
| Basic Instruction Speed (LD X0) |
9.5 ns |
| Program Memory Capacity |
40 K steps (160 KB) |
| Max I/O Points |
4096 |
| Max Device Points |
8192 |
| Multi-CPU Support |
Up to 4 CPUs on Q backplane; high-speed communication cycle: 0.88 ms |
| Built-in Interfaces |
1× 10/100BASE-T Ethernet, 1× USB (Type B), Memory card slot (RAM/ROM/Flash) |
| Communication Protocols |
MC Protocol, Ethernet/IP, FTP, Socket communication (max 16 connections) |
| Fixed-Cycle Interrupt |
Min 100 µs |
| Real-Time Clock (RTC) |
Built-in, battery-backed (backup time: approx. 10 years) |
| Power Supply |
5 VDC (from Q backplane), 0.75 A |
| Operating Temperature |
0°C to +55°C |
| Storage Temperature |
-20°C to +65°C |
| Humidity |
5–95% RH (non-condensing) |
| Vibration Resistance |
5–8.4 Hz: 3.5 mm amplitude; 8.4–150 Hz: 9.8 m/s² |
| Shock Resistance |
147 m/s² (15 G), 3 times in X/Y/Z axes |
| Dimensions (W×H×D) |
27.4 × 98 × 100 mm |
| Weight |
Approx. 0.18 kg |
| Certifications |
UL/cUL, CE (EMC/RoHS), KC, LR, DNV, ABS, RINA, BV |
| Status |
Legacy model (discontinuation scheduled Oct 2026); replacement: Q04UDVCPU |
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