The Q03UDECPU (Q03UDECPU) is a high-performance Universal CPU Module from Mitsubishi Electric's flagship MELSEC-Q Series. Engineered as a foundation for the iQ Platform, this CPU is designed for high-speed, complex automation tasks requiring seamless network integration. The "UDE" designation highlights its most critical feature: a built-in Ethernet interface, allowing for direct connection to factory networks without the need for additional communication modules. With an impressive instruction execution speed of 20ns (down to 9.5ns for basic bit processing), the Q03UDECPU is ideal for high-speed packaging, automotive assembly, and precision motion control applications.
The Mitsubishi Q03UDECPU significantly enhances machine tact time through its high-speed data access and rapid program execution. It features a 30k step program memory capacity, providing ample space for sophisticated control logic. The dual-interface design—comprising an integrated Mini-USB port for local programming and an Ethernet port for global connectivity—simplifies maintenance and debugging. Furthermore, as part of the iQ Platform, this CPU can be seamlessly combined with motion controllers, robots, and NC CPUs on a single base unit, enabling a truly integrated multi-disciplinary control system.
| Attribute | Specification Details |
| Model | Q03UDECPU |
| Brand | Mitsubishi Electric |
| Series | MELSEC-Q (Universal Model) |
| Program Capacity | 30,000 Steps |
| Basic Instruction Speed | 20 ns (9.5 ns for bit processing) |
| Communication Interface | Ethernet (10/100 Mbps) & Mini-USB |
| I/O Points | 4096 Points |
| Memory | 120 KB (Standard RAM) |
| Dimensions (HxWxD) | 98 x 27.4 x 89.3 mm |
| Weight | 0.22 kg (Net) / 1.5 kg (Shipping) |
What is the primary benefit of the "Universal" Q Series over standard Q CPUs?
The Universal Q series, like the Q03UDECPU, offers much faster bus communication speeds (up to 3x faster) and the ability to handle larger data volumes. It is specifically designed to work in multi-CPU configurations, sharing data across the backplane with minimal latency.
Does the Ethernet port support Modbus TCP?
While the built-in Ethernet port is primarily designed for MELSOFT connection (programming) and MC Protocol (communication with HMIs/PLCs), it can support Modbus TCP through specific function blocks or by using an additional QJ71E71-100 module for dedicated open-network tasks.
Is a battery required for the Q03UDECPU?
Yes, the Q03UDECPU typically uses the Q6BAT lithium battery to retain the program and data in the SRAM when the power is turned off. It is recommended to replace the battery every 3–5 years depending on the ambient temperature.
IP Address Configuration: The default IP settings for the Q03UDECPU may need to be initialized via the GX Works2/Works3 software through the USB port before the Ethernet connection becomes active. Ensure your PC's subnet mask matches the CPU's configured range.
Multi-CPU Loading: When combining the Q03UDECPU with motion or robot CPUs, ensure the Power Supply Module (e.g., Q61P) is sized correctly for the total current consumption of all modules on the base unit.
Firmware Compatibility: If you are integrating this CPU into an existing system, verify that your GX Works software version supports the "Universal" series. Using outdated software may result in "Communication Error" during program upload/download.
The Q03UDECPU stands out for its "Future-Proof" architecture. Its compact width of only 27.4 mm allows for an incredibly high I/O density on the DIN rail. The integration of high-speed bit processing (9.5ns) ensures that even the most complex interlocking logic is executed with negligible delay. By combining PLC, Motion, and Ethernet capabilities into a single modular footprint, Mitsubishi provides a robust, scalable solution that reduces both panel space and overall system cost while maintaining world-class reliability.
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Returns & Warranty
Manufacturer: Mitsubishi Electric
Product No.: Q03UDECPU
Country of origin:United States
Product Type: Universal CPU Module
Payment: T/T, Western Union
Weight: 253g
Shipping port: Xiamen
Warranty: 12 months
The Q03UDECPU (Q03UDECPU) is a high-performance Universal CPU Module from Mitsubishi Electric's flagship MELSEC-Q Series. Engineered as a foundation for the iQ Platform, this CPU is designed for high-speed, complex automation tasks requiring seamless network integration. The "UDE" designation highlights its most critical feature: a built-in Ethernet interface, allowing for direct connection to factory networks without the need for additional communication modules. With an impressive instruction execution speed of 20ns (down to 9.5ns for basic bit processing), the Q03UDECPU is ideal for high-speed packaging, automotive assembly, and precision motion control applications.
The Mitsubishi Q03UDECPU significantly enhances machine tact time through its high-speed data access and rapid program execution. It features a 30k step program memory capacity, providing ample space for sophisticated control logic. The dual-interface design—comprising an integrated Mini-USB port for local programming and an Ethernet port for global connectivity—simplifies maintenance and debugging. Furthermore, as part of the iQ Platform, this CPU can be seamlessly combined with motion controllers, robots, and NC CPUs on a single base unit, enabling a truly integrated multi-disciplinary control system.
| Attribute | Specification Details |
| Model | Q03UDECPU |
| Brand | Mitsubishi Electric |
| Series | MELSEC-Q (Universal Model) |
| Program Capacity | 30,000 Steps |
| Basic Instruction Speed | 20 ns (9.5 ns for bit processing) |
| Communication Interface | Ethernet (10/100 Mbps) & Mini-USB |
| I/O Points | 4096 Points |
| Memory | 120 KB (Standard RAM) |
| Dimensions (HxWxD) | 98 x 27.4 x 89.3 mm |
| Weight | 0.22 kg (Net) / 1.5 kg (Shipping) |
What is the primary benefit of the "Universal" Q Series over standard Q CPUs?
The Universal Q series, like the Q03UDECPU, offers much faster bus communication speeds (up to 3x faster) and the ability to handle larger data volumes. It is specifically designed to work in multi-CPU configurations, sharing data across the backplane with minimal latency.
Does the Ethernet port support Modbus TCP?
While the built-in Ethernet port is primarily designed for MELSOFT connection (programming) and MC Protocol (communication with HMIs/PLCs), it can support Modbus TCP through specific function blocks or by using an additional QJ71E71-100 module for dedicated open-network tasks.
Is a battery required for the Q03UDECPU?
Yes, the Q03UDECPU typically uses the Q6BAT lithium battery to retain the program and data in the SRAM when the power is turned off. It is recommended to replace the battery every 3–5 years depending on the ambient temperature.
IP Address Configuration: The default IP settings for the Q03UDECPU may need to be initialized via the GX Works2/Works3 software through the USB port before the Ethernet connection becomes active. Ensure your PC's subnet mask matches the CPU's configured range.
Multi-CPU Loading: When combining the Q03UDECPU with motion or robot CPUs, ensure the Power Supply Module (e.g., Q61P) is sized correctly for the total current consumption of all modules on the base unit.
Firmware Compatibility: If you are integrating this CPU into an existing system, verify that your GX Works software version supports the "Universal" series. Using outdated software may result in "Communication Error" during program upload/download.
The Q03UDECPU stands out for its "Future-Proof" architecture. Its compact width of only 27.4 mm allows for an incredibly high I/O density on the DIN rail. The integration of high-speed bit processing (9.5ns) ensures that even the most complex interlocking logic is executed with negligible delay. By combining PLC, Motion, and Ethernet capabilities into a single modular footprint, Mitsubishi provides a robust, scalable solution that reduces both panel space and overall system cost while maintaining world-class reliability.
Global Express Shipping
Returns & 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 .
| Color pattern |
Black
|
| Country of origin |
United States
|
| Power source |
DC Power
AC-powered
|
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