Q26UDVCPU Mitsubishi Melsec-Q series CPU Module

Product parameters

Processor performance: 32-bit RISC multi-core processor, basic instruction execution speed 0.034 μs/step (Boolean instructions), application instructions starting from 0.1 μs/step, supports multi-task parallel processing, interrupt response time ≤10 μs

Memory configuration: User program memory 262 k steps (approximately 1310 KB), data memory 1 MB, supports SD card expansion; The redundant synchronous memory is independently designed to ensure real-time consistency of data between the two cpus

I/O expansion capability: Supports Q series local I/O module expansion, with a maximum of 16,384 local I/O points (digital + analog). Supports remote I/O expansion, capable of connecting thousands of distributed I/O and smart devices. The redundant system supports hot plugging of I/O modules

Communication interface

Built-in 2 EtherNet interfaces (RJ45, 10/100/1000 Mbps adaptive, supporting TCP/IP, Modbus TCP, CC-Link IE Field Basic, EtherNet/IP protocols, supporting network redundancy, port mirroring and redundant communication synchronization);

Built-in 1 RS-485 interface (supporting Modbus RTU/ASCII protocol, multi-master mode, with a maximum baud rate of 115200 bps);

Support the expansion of communication modules, and extend protocols such as PROFINET, Profibus-DP, and DeviceNet

Redundancy features: Supports 1:1 hot standby redundancy configuration (2 Q26UDV cpus form a master-slave architecture), redundancy switching time ≤ 10ms (no output interruption), supports automatic synchronization (real-time synchronization of programs, parameters, and I/O status), self-diagnosis of faults and automatic switching

Power supply parameters: Powered by Q series redundant power modules (such as Q61P-A2×2, Q62P-A1×2), with a working voltage of DC 5V, typical power consumption of approximately 14W, and peak power consumption of 17W

Working environment: Working temperature 0℃ to 60℃, storage temperature -20 ℃ to 70℃. Relative humidity 5% to 95% (no condensation), anti-electromagnetic interference (EMC) complies with EN 55011/EN 55022 Class A and IEC 61000-6-2 standards, protection grade IP20

Mechanical features: Compatible with Q series standard rack mounting (compatible with Q35B/Q50B/Q100B redundant racks), and supports hot plugging

Programming and Configuration: Supports GX Works2/GX Works3 programming software, compatible with five programming methods: ladder diagram (LD), Function block diagram (FBD), structured text (ST), sequential function diagram (SFC), and instruction list (IL). Supports redundant system configuration, online monitoring, fault simulation, and remote maintenance

Diagnostic functions: Integrated power supply (PWR), operation (RUN), redundancy status (RED), communication (ETH1/ETH2/COM), fault (ERR) indicator lights. Supports four-level diagnosis at the module level, network level, program level, and redundancy level. Detailed fault codes, redundancy switching records, system load, and network status can be read through the software

Function

High-end redundancy control and uninterrupted operation: 1:1 hot standby redundancy architecture. When the main CPU fails, it can seamlessly switch from the CPU within ≤10 ms without output interruption or data loss, completely avoiding system shutdown caused by single-point failure and meeting the "zero interruption" requirement of critical processes

Flagship-level computing and control performance With a high-speed instruction execution efficiency of 0.034 μs per step, it can handle ultra-large-scale logic programs, complex timing collaboration, and batch data operations. It supports up to 256 PID loops (including self-tuning, feedforward control, and cascade control), and is suitable for scenarios where discrete control, process control, and motion control (motion modules need to be expanded) are deeply integrated

Large-capacity memory and redundant data synchronization: 262k step program memory + 1 MB data memory, supporting massive variable storage, complex process formula library and long-term fault log recording; The redundant synchronization mechanism ensures that the program, parameters, and I/O status of the master and slave cpus are consistent in real time, and there is no control deviation after switching

Multi-protocol integration and redundant communication: Equipped with dual Gigabit Ethernet (supporting network redundancy) +RS-485 interface, compatible with mainstream industrial protocols, it can simultaneously connect to HMI, SCADA, MES, ERP systems, as well as third-party PLCS and intelligent devices. Redundant communication design ensures link stability and is compatible with cross-system data interaction and remote monitoring

High reliability and all-round protection: Supports multiple redundant configurations such as CPU redundancy, power redundancy, network redundancy, and I/O redundancy to build a system without single points of failure. Built-in power-off retention capacitor (optional Q6BAT battery backup), critical data retention ≥10 days; Industrial-grade anti-interference and wide-temperature design, suitable for complex electromagnetic environments and temperature fluctuations

Convenient maintenance and intelligent operation and maintenance: The four-level diagnostic function can quickly locate the fault point (such as master-slave CPU failure, communication link interruption, I/O module abnormality); Supports remote maintenance, online program upgrade, real-time parameter modification. In redundant mode, faulty modules can be hot-swapped and replaced without shutting down the machine. Redundant switching records and fault logs facilitate the tracing of the root cause of the problem

Full compatibility and flexible expansion: Fully compatible with all I/O modules, communication modules, and special function modules of the Q series, and can be seamlessly integrated with motion control modules and process control modules of the Q series. Supports networking and communication with Mitsubishi FX/L series PLCS, suitable for the integration and expansion scenarios of new and old systems, and the redundant configuration is simple and convenient

Application scenarios

Key process control: Large-scale chemical plants (distillation columns, reaction vessels), petrochemical refining and chemical systems, aseptic fermentation and purification processes in the pharmaceutical industry. Redundant control ensures process continuity and avoids material waste, safety risks or product quality defects caused by shutdowns

High-reliability production systems: automotive assembly lines (welding, painting, and core assembly stations), core component production lines for electronic equipment (chip packaging, panel manufacturing), uninterrupted control ensures stable production rhythms, avoiding batch product scrapping or production line stagnation

Core control of energy and infrastructure: Small and medium-sized power stations (generator set control, distribution system protection), urban rail transit signal systems, large-scale water treatment plants (core processes for water supply and sewage treatment), redundant configuration to ensure uninterrupted public services or energy supply

Heavy industry and special scenarios: Control of blast furnaces/converters in the metallurgical industry, rotary kiln systems in the cement industry, auxiliary systems for nuclear power (pump sets, valve control), in strong electromagnetic interference and high-load environments, redundant design enhances the system's risk resistance capacity

Distributed redundant network: In large industrial parks, multi-workshop distributed control networks (such as multi-device linkage in chemical industrial parks and multi-line collaboration in intelligent manufacturing industrial parks) are adopted. The regional master station is configured with Q26UDVCPU redundancy to ensure uninterrupted regional control, and at the same time, it is connected to the factory-level SCADA system through Ethernet

High-end equipment cluster control: Large injection molding machine clusters, flexible manufacturing units of CNC machine tools, core control of printing and packaging production lines, redundant power supply + redundant CPU combination, compatible with high-density I/O and high-speed drive modules, ensuring the stable and coordinated operation of equipment clusters

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