AutomationDirect EA-COMCON-3A Communication Module

Description

AutomationDirect EA-COMCON-3A Communication Module

Product Dimensions：

The EA-COMCON-3A is a specialized communication signal converter/adapter manufactured by AutomationDirect, primarily designed for use with the C-more Micro series of Human Machine Interfaces (HMI). It serves as a critical bridge for serial communication, facilitating easier wiring and signal conversion for industrial automation setups.

Product Specifications

Product Advantages

• Simplified Wiring: Replaces the need for custom RJ45 cables by providing a standard 5-pin screw terminal block, allowing for direct wire-to-terminal connections.

• Protocol Flexibility: Enables C-more Micro panels to communicate over RS-422 and RS-485 networks, which are standard for long-distance industrial communication.

• Compact Design: The small footprint ensures it does not interfere with the mounting or enclosure space of the HMI.

• Cost-Effective: Offers a rugged, industrial-grade solution for multi-drop networking without the need for expensive proprietary cables.

• Tool-less Installation: Easily snaps into the existing RJ45 port on the back of the HMI unit.

Key Considerations & Precautions

• Compatibility Check: Ensure your specific C-more Micro model supports this adapter. While it fits most 3-inch, 4-inch, and 6-inch models, always verify the hardware manual.

• Termination Resistors: When using RS-485 in a multi-drop configuration, ensure that proper termination resistors are used at the end of the line to prevent signal reflection.

• Pinout Awareness: Carefully follow the labeling on the 5-pin terminal (TX+, TX-, RX+, RX-, GND) to avoid wiring errors that could damage the communication ports.

• Environment: Ensure the adapter is used within the specified temperature and humidity ranges typical of industrial environments (NEMA 4/4X when mounted correctly in a panel).

Product Applications

The EA-COMCON-3A is typically used in environments where an HMI needs to talk to one or more controllers over a distance. Common applications include:

1. PLC Networking: Connecting a C-more Micro HMI to a PLC (like the Koyo Click, DL05, or DL06) via RS-485.

2. Multi-drop Networks: Linking a single HMI to multiple drives or controllers on a single serial bus.

3. Long-Distance Communication: Utilizing RS-422/485 capabilities to communicate over distances where standard RS-232 would fail due to noise or length limits.

4. Retrofitting: Upgrading older systems where existing wiring consists of loose twisted-pair cables rather than RJ45 connectors.

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