MR-J2S MITSUBISHI

MR-J2S MITSUBISHI Communication Processor

Product  Description：

The Mitsubishi Communication Processor is an intelligent function module designed for the MELSEC iQ-R, Q, L, and iQ-F series. Its primary role is to handle data transmission tasks, thereby freeing up the main CPU to focus on logic execution. These modules typically support standard interfaces such as RS-232, RS-422, and RS-485, as well as Ethernet-based protocols. By using the MC (MELSEC Communication) protocol or the Seamless Message Protocol (SLMP), these processors enable external computers and HMIs to read from or write to the PLC’s internal device memory directly.

Product Parameters

While specific values vary by model (e.g., RJ71C24 vs. QJ71C24N), the general technical parameters include:

• Interfaces: Options for 1-channel or 2-channel configurations featuring RS-232, RS-422, or RS-485.

• Transmission Speeds: Supports a wide range of baud rates, typically from 1.2 kbps up to 230.4 kbps for serial communication.

• Maximum Distance: Up to 15 meters for RS-232 and up to 1200 meters for RS-422/485 connections.

• Protocol Support: Built-in support for MC Protocol, Modbus RTU/ASCII, and non-procedure protocols for custom device integration.

• Data Capacity: Capable of handling large batch transfers, often up to 960 words per communication block.

• Power Consumption: Low internal DC current consumption, typically ranging between 0.2A and 0.4A depending on the module series.

Product Advantages

Mitsubishi communication processors are renowned for their reliability and ease of integration:

• Efficiency: By offloading communication tasks to a dedicated processor, the PLC system maintains high-speed scan times even during heavy data traffic.

• Predefined Protocol Library: Users can easily connect to third-party devices (like inverters or sensors) by selecting them from a built-in library in the GX Works software, reducing programming time significantly.

• Flexibility: The modules support "non-procedure" communication, allowing engineers to write custom protocols for unique or legacy hardware.

• Robust Security: Newer models include remote password functions and encryption to prevent unauthorized access via network lines.

• Reliability: Designed for harsh industrial environments, offering high noise immunity and long-term stability.

Important Precautions

To ensure safe and stable operation, the following guidelines should be observed:

• Noise Prevention: Do not bundle communication cables with high-voltage power lines. Keep a minimum distance of 100mm to avoid electromagnetic interference that causes data corruption.

• Installation Safety: Always shut off the external power supply before mounting or removing the module to prevent electrical shock or equipment damage.

• Static Electricity: Touch a grounded metal object to discharge static electricity from your body before handling the module to protect sensitive electronic components.

• Wiring Integrity: Ensure all terminal screws are tightened to the specified torque. Loose connections can lead to malfunctions, while over-tightening can damage the module's frame.

• Environment: Operate the device only within the temperature and humidity ranges specified in the hardware manual to prevent premature failure.

Product Applications

These processors are used across a vast spectrum of industrial sectors:

• Manufacturing: Connecting PLCs to barcode scanners, printers, and RFID readers on assembly lines for product tracking.

• Data Acquisition: Gathering data from power meters, weighing scales, and temperature controllers for centralized monitoring.

• Remote Maintenance: Utilizing modems or Ethernet bridges to allow engineers to program or troubleshoot the PLC from a remote location.

• System Integration: Linking different brands of automation equipment within a single factory floor using the Modbus protocol.

• Process Control: Communicating with specialized chemical sensors or flow meters in water treatment and food processing plants.

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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