QD77MS4 MITSUBISHI

QD77MS4 MITSUBISHI Processor module

Product  Description：

The Mitsubishi Electric Processor Module, often referred to as the CPU module, serves as the "brain" of the MELSEC Programmable Logic Controller (PLC) system. It is responsible for executing the control logic, managing system-wide data, and coordinating communication between all integrated I/O and functional modules. Designed for high-speed performance and high-reliability industrial automation, these processors can handle everything from simple machine control to complex, plant-wide process automation.

Product Parameters

The performance of a Mitsubishi Processor Module is defined by its computational power and memory capacity:

• Program Capacity: Ranges from 10k steps for the entry-level FX series to over 1200k steps for the high-end iQ-R series, allowing for massive logic sequences.

• Processing Speed: Features ultra-high-speed execution, with basic instructions processed in as little as 0.98 nanoseconds.

• Memory Types: Integrated Flash ROM for permanent program storage and high-capacity RAM for operational data, with expansion slots for SD memory cards.

• Max I/O Points: Capable of managing up to 4096 local I/O points and tens of thousands of remote I/O points via network links.

• Multi-Processor Support: Capability to install up to four CPUs on a single base unit to distribute logic, motion control, and PC-link tasks.

• Built-in Ports: Most modern processors include an integrated Ethernet port for network communication and a USB/Mini-USB port for high-speed programming and debugging.

Product Advantages

Mitsubishi Processor Modules are distinguished by their advanced logic handling and stability:

• Real-Time Multi-Tasking: The OS allows for the simultaneous execution of multiple program blocks with different priority levels, ensuring that critical safety or motion tasks are never delayed.

• High-Speed Bus Backplane: Uses a proprietary high-speed bus design that allows for nearly instantaneous data transfer between the CPU and specialized modules like motion or high-speed counters.

• Integrated Security: Features hardware-based security keys and IP filter functions to prevent unauthorized program tampering or illegal remote access.

• Extensive Instruction Set: Provides a rich library of pre-defined function blocks for PID control, floating-point math, and complex string handling.

• Reliability and Longevity: Built without internal fans in most models to minimize mechanical failure, ensuring a long service life even in dusty or vibrating industrial environments.

Product Applications

The processor module is the central controller in a wide variety of advanced industrial settings:

• Automotive Manufacturing: Coordinating the high-speed synchronization of robotic welding arms and assembly line conveyors.

• Semiconductor Fabrication: Managing precise environmental controls and high-speed wafer handling where timing is measured in microseconds.

• Food and Pharmaceutical Production: Handling complex recipe management and tracking batch data for regulatory compliance.

• Energy and Infrastructure: Controlling power distribution grids, water treatment cycles, and large-scale ventilation systems in tunnels or skyscrapers.

• Material Handling: Governing automated storage and retrieval systems (ASRS) and complex sorting machines in logistics hubs.

Important Precautions

To ensure the safety and continuous operation of the control system, follow these critical guidelines:

• Battery Replacement: If the module uses a battery to maintain the internal clock or volatile memory, replace it immediately when the "BAT" LED lights up to avoid data loss during power outages.

• Power Sequence: Always ensure the base unit power supply is stable before the CPU begins its boot sequence. Use a high-quality power supply module to prevent logic errors caused by voltage sags.

• Firmware Management: When updating firmware, ensure the power is not interrupted. A power failure during a firmware write can permanently "brick" the processor module.

• ESD Protection: The processor is highly sensitive to static electricity. Always touch a grounded metal object before handling the module or wear an anti-static wrist strap.

• Memory Card Handling: Do not remove the SD memory card while the "SD CARD" access LED is blinking, as this can corrupt the file system and stop the CPU execution.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.