AAB42574 EATON

AAB42574 EATON Coupler for external

Product  Description：

The EATON External Bus Coupler is a highly specialized communication module that serves as the head-end device for a distributed I/O system, such as EATON's XI/ON, E/T-Line, or SmartWire-DT systems. Its primary function is to manage the communication link between the internal, high-speed backplane bus (which connects the power, digital, and analog I/O modules) and a superior, external fieldbus network (like PROFINET, EtherNet/IP, Modbus TCP, etc.). The coupler receives configuration and control data from the external master PLC/controller and translates it into signals for the local I/O modules. Conversely, it collects input data from the local modules and packages it for transmission back to the external master. It typically houses the network interface, the communication protocol stack, and a small amount of memory for I/O data mapping.

Product Parameters

Specific parameters depend on the supported external protocol, but generally include:

• Supported External Network: For example, EtherNet/IP, PROFINET, Modbus TCP, CANopen, PROFIBUS.

• Internal I/O Bus: Specifies the EATON I/O platform it supports (e.g., XI/ON backplane).

• Network Connection: Physical interface, such as RJ45 (Ethernet), M12 connector, or D-Sub (PROFIBUS/CANopen).

• Data Transmission Rate: Varies by protocol (e.g., $100 \text{ Mbit/s}$ for Ethernet, $12 \text{ Mbit/s}$ for PROFIBUS).

• Max I/O Points: Defines the maximum number of digital/analog I/O modules or data bytes the coupler can manage.

• Power Supply: Typically $24 \text{ V}_{\text{DC}}$ provided externally to the coupler and shared with the I/O modules.

• Operating Temperature: Usually $-20^{\circ}\text{C}$ to $+60^{\circ}\text{C}$ for industrial use.

Product Advantages

The EATON Bus Coupler provides several key advantages in distributed control architectures:

• Protocol Versatility: It allows the use of EATON's reliable, modular I/O systems with virtually any major industrial control network, offering freedom of choice for the main controller platform.

• Distributed Control: It facilitates the decentralization of I/O, placing modules close to the sensors and actuators, thereby reducing wiring costs, installation time, and the potential for electrical noise.

• Scalability: The coupler architecture allows the I/O system to be easily scaled by adding or removing I/O modules on the backplane without changing the external network topology.

• Diagnostics and Status: Couplers typically feature built-in diagnostic indicators (LEDs) for network connection, power status, and internal bus communication, simplifying troubleshooting.

• Data Integration: It offers efficient data mapping and exchange between the high-speed I/O layer and the supervisory control layer.

Important Considerations (Precautions)

Proper installation and configuration of the Coupler are critical:

• Network Configuration: The Coupler must be assigned a unique address (IP address, node address, etc.) on the external network, and this configuration must match the master PLC's project settings.

• Power Quality: A stable and properly filtered $24 \text{ V}_{\text{DC}}$ power supply is essential for the reliable operation of the coupler and all connected I/O modules.

• Terminators: For bus networks like PROFIBUS or CANopen, correct bus termination is absolutely mandatory at the start and end of the network segment to prevent signal reflections.

• Environmental Integrity: The Coupler must be installed in an environment that respects its specified ingress protection (IP) rating and temperature limits to ensure long-term functionality.

• Firmware Compatibility: Ensure the Coupler's firmware version is compatible with the version of the main controller's engineering software.

Product Applications

External Bus Couplers are widely used in modern automation systems that require flexible and decentralized I/O:

• Automated Material Handling: Connecting remote I/O points for sensors and actuators on conveyor belts, cranes, and automated guided vehicles (AGVs) to the main facility network.

• Machine Building: Used in complex, standalone machinery (e.g., packaging machines, CNC equipment) where the I/O system must be compact and easily integrated into the end-user's plant network.

• Process Skids: Providing the communication interface for modular, pre-built process units (like pump skids or filtering stations) to link up with the plant's distributed control system (DCS) or main PLC.

• Building and Infrastructure Automation: Connecting distributed I/O panels that monitor environmental controls, lighting, and security to a central building management system (BMS).

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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