Q03UDECPU MELSEC-Q Universal CPU 30K Steps Ethernet | Mitsubishi

The Original New Mitsubishi Q03UDECPU is a Universal Model QCPU from the MELSEC-Q QnU series, designed for high-speed sequence control and advanced industrial automation applications. It provides 30K steps (120 KB) of program memory, 4,096 local I/O points (8,192 total device points), and a basic instruction processing speed of 20 ns (LD instruction). Built-in USB and 10/100 Mbit Ethernet ports offer flexible programming and network communication options, while multiple CPU high-speed communication enables seamless integration in complex multi-processor systems.

Core Engineering Highlights:
30K steps / 120 KB program memory | 4,096 local I/O points (8,192 device points) | 20 ns LD instruction execution | 40 ns MOV instruction execution | Built-in USB + 10/100 Mbit Ethernet | Multiple CPU high-speed transmission | 0.33 A internal current consumption (5 V DC) | 27.4 × 98 × 89.3 mm | 0.2 kg

Key Features:

• Original New Mitsubishi Q03UDECPU CPU unit

• 30K steps (120 KB) program memory capacity

• 4,096 local I/O points, expandable to 8,192 local + remote I/O points

• 20 ns basic instruction processing speed (LD instruction)

• 40 ns MOV instruction execution speed

• Built-in USB connector for programming and maintenance

• Built-in RJ45 Ethernet port (10/100 Mbit) for network communication

• Multiple CPU high-speed transmission for multi-processor systems

• Supports memory card interface (SRAM, Flash, ATA cards)

• Programming languages: Ladder diagram (LD), Relay symbol language, Structured Text (ST), Logic symbolic language, Function Block Diagram (FBD), MELSAP3 (SFC), MELSAP-L

• Buffer battery for data retention

• Compact 27.4 mm width for space-efficient rack mounting

• Backplane/rack mounting via Q series base unit

Applications:

• High-speed sequence control in industrial machinery

• Multi-CPU system configurations for advanced motion and process control

• Factory automation and production line control

• Material handling and conveyor systems

• Packaging machinery and assembly equipment

• Process control and monitoring systems

• Distributed I/O architectures with Ethernet networking

Technical Specifications:

System Compatibility:

• Compatible with Mitsubishi MELSEC-Q series base units (main base and extension base)

• Compatible with Q series I/O modules, intelligent function modules, and communication modules

• Requires a dedicated Q series power supply unit (e.g., Q61P) for operation

• Supports multiple CPU configurations for high-speed inter-CPU communication

• Programmed using GX Works2 or GX Developer engineering software

Related Products:

• Q03UDVCPU – Recommended successor (High-speed Universal Model QCPU)

• R04CPU – Alternative successor (MELSEC iQ-R series)

• Q61P – Power supply module, 100–240 V AC input, 5 V DC 6.5 A output

• Q38B – 8-slot main base unit for Q series

• QX80 – 16-point digital input module, 24 V DC

• QY10 – 16-point relay output module

• QJ71E71-100 – Ethernet communication module (10/100 Mbit)

• GX Works2 – Engineering software for MELSEC-Q series

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Mitsubishi, MELSEC, and MELSEC-Q are trademarks of Mitsubishi Electric Corporation.