MR-J3-100B MITSUBISHI

MR-J3-100B MITSUBISHI Central unit

Product  Description：

The Mitsubishi Electric Central Unit, commonly referred to as the CPU module, serves as the command center for the MELSEC Programmable Logic Controller (PLC) system. It is the core intelligence responsible for executing control programs, managing data memory, and coordinating communication across all expansion modules. These units are designed to handle everything from simple machine control to complex, high-speed factory automation and process synchronization.

Product Parameters

The performance of a Mitsubishi Central Unit is defined by its processing capacity and hardware architecture:

• Instruction Execution Speed: High-end models feature basic instruction speeds as fast as 0.9 nanoseconds, enabling rapid response for high-speed motion and sensing.

• Program Capacity: Storage options range from 10k steps for micro-controllers to over 1200k steps for large-scale enterprise systems.

• Internal Memory: Equipped with high-speed RAM for data registers and flash memory for non-volatile program storage and device comment data.

• I/O Management: Capable of controlling up to 4096 local I/O points, with the ability to manage tens of thousands of points through remote network expansion.

• Multi-Processor Support: The architecture allows for the installation of multiple CPUs on a single backplane to divide tasks between logic, motion control, and CNC functions.

• Built-in Interfaces: Modern units typically integrate an Ethernet port for network connectivity and a USB or Mini-USB port for high-speed programming and debugging.

Product Advantages

Mitsubishi Central Units are recognized for their industry-leading stability and "Smart" functionality:

• Superior Reliability: Built with industrial-grade components that undergo rigorous vibration and thermal testing, ensuring a long operational life in 24/7 manufacturing environments.

• Deterministic Performance: The dedicated system bus provides constant-speed data exchange between modules, ensuring that control cycles remain precise and repeatable.

• Comprehensive Security: Features multi-level password protection and hardware security keys to prevent unauthorized intellectual property theft or accidental program changes.

• Integrated Safety and Motion: Certain central units can execute both standard logic and safety-certified logic simultaneously, reducing the need for separate safety controllers.

• Ease of Maintenance: Support for SD card boot functions allows for quick hardware replacement; a new CPU can automatically load the program from the SD card without a PC.

Product Applications

These units provide the processing power for a wide variety of advanced industrial systems:

• Automotive Manufacturing: Coordinating complex robotic welding cells, paint lines, and final assembly conveyors.

• Semiconductor Fabrication: Managing ultra-precise wafer handling and cleanroom climate control where downtime is extremely costly.

• Food and Beverage: Controlling high-speed filling, labeling, and packaging machines that require millisecond-level synchronization.

• Infrastructure and Utilities: Governing large-scale water treatment plants, tunnel ventilation systems, and power distribution substations.

• Material Handling: Powering sophisticated automated storage and retrieval systems (ASRS) and high-speed sorters in logistics hubs.

Important Precautions

To ensure the safety of the operator and the longevity of the equipment, please observe these guidelines:

• Power Sequencing: Always ensure the power supply module and the central unit are correctly seated on the base unit before applying power. Never remove the CPU while the power is on.

• Battery Management: For units that rely on a battery for data retention, replace the battery immediately when the "BATTERY" LED glows or flashes to avoid loss of retentive data.

• Grounding Requirements: The "LG" and "FG" terminals must be grounded correctly to prevent electromagnetic interference from causing logic errors or CPU resets.

• Environment Control: Ensure the control cabinet is free from conductive dust, corrosive gases, and oil mist. Use filtered ventilation or heat exchangers if necessary to maintain operating temperatures within specified limits.

• Memory Card Handling: Do not remove the SD memory card while the "SD CARD" access LED is lit, as this can result in corrupted data or damage to the card's file system.

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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