E1151 MITSUBISHI

E1151 MITSUBISHI Interface Module

Product  Description：

Mitsubishi Electric Interface Modules are specialized hardware components designed to expand the connectivity and functional reach of a Programmable Logic Controller (PLC). These modules act as a physical and electrical bridge between the PLC backplane and external systems, such as Human Machine Interfaces (HMIs), specialized sensors, computer networks, or legacy industrial equipment. Unlike standard I/O, interface modules are often dedicated to specific communication tasks or protocol conversions, ensuring that the central CPU can interact with diverse hardware environments.

Product Parameters

The technical characteristics of Mitsubishi Interface Modules are defined by their specific communication standards and data handling capabilities:

• Connection Ports: Typically features high-speed RJ45 Ethernet ports, D-Sub serial connectors (RS-232C/RS-422/485), or specialized USB interfaces.

• Data Transmission Rate: Ethernet-based interfaces support 10/100/1000 Mbps, while serial interfaces support baud rates from 300 bps up to 115.2 kbps.

• Buffer Memory: Integrated internal memory (often ranging from 4k to 32k words) used to temporarily store data packets, reducing the processing load on the PLC CPU.

• Power Consumption: Low power draw design, usually drawing between 0.2A and 0.5A from the PLC internal 5V DC supply.

• Protocol Support: Built-in support for MC Protocol (Mitsubishi Common), Modbus, and various dedicated computer link protocols.

• Insulation Method: High-speed photocoupler or transformer isolation between the communication line and the PLC internal logic to prevent electrical noise transfer.

Product Advantages

Mitsubishi Interface Modules provide significant operational benefits for complex automation architectures:

• Seamless System Integration: These modules allow for the direct connection of third-party devices to the MELSEC ecosystem, eliminating the need for complex custom gateways.

• Reduced CPU Overhead: By handling the low-level communication tasks and protocol "handshaking" internally, the module frees up the PLC CPU to focus on high-speed logic execution.

• Flexible Networking: Supports multiple simultaneous connections, allowing a single PLC to communicate with a local HMI, a remote SCADA system, and a programming PC at the same time.

• High Reliability: Built with industrial-grade components that resist electromagnetic interference (EMI) and operate reliably in high-temperature factory environments.

• Easy Configuration: Managed through the GX Works software environment, featuring dedicated setting screens that simplify the mapping of data registers without extensive ladder programming.

Product Applications

These modules are used in diverse scenarios where data must be shared across different platforms:

• HMI Connectivity: Providing the high-speed data link required for real-time graphics and control buttons on operator touch panels.

• PC-Based Monitoring: Interfacing the production line with office-level computers for quality control tracking, recipe management, and data logging.

• Peripheral Device Control: Connecting the PLC to specialized industrial hardware such as barcode readers, electronic scales, and vision inspection systems.

• Legacy System Bridging: Using serial interface modules to maintain communication with older machinery while upgrading the main control logic to a modern PLC.

• Remote Diagnostics: Allowing maintenance teams to access the PLC system via a local network or VPN for remote troubleshooting and program updates.

Important Precautions

To ensure long-term stability and prevent communication errors, users should follow these guidelines:

• Proper Shielding: Always use shielded twisted-pair (STP) cables for communication lines to prevent ambient electrical noise from corrupting data packets.

• Correct Termination: For RS-422 or RS-485 serial connections, ensure that termination resistors are correctly set to match the characteristic impedance of the cable, preventing signal reflection.

• Power-Off Installation: Never plug or unplug an interface module from the PLC base unit while the power is on, as this can cause electrical arcing and damage the sensitive backplane connectors.

• Connector Security: Ensure that all D-sub or terminal block screws are tightened securely. Loose connections are a primary cause of intermittent communication failures in high-vibration environments.

• Protocol Matching: Verify that the communication parameters (baud rate, data bits, parity, and stop bits) exactly match between the Mitsubishi module and the connected external device.

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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