CX5130-N031-0003 | BECKHOFF | Embedded PC Intel Atom E3827 RS485

Product Overview

The CX5130-N031-0003 (CX5130-N031-0003) is a high-performance Embedded PC designed for sophisticated automation tasks requiring robust processing power and specialized serial communication. Powered by the Intel Atom E3827 dual-core processor, this controller bridges the gap between basic PLC functionality and high-end industrial PCs. Specifically configured with an integrated RS485 interface via a 9-pin D-sub socket, the CX5130-N031-0003 is an ideal solution for retrofitting legacy systems, managing building automation protocols, or controlling power distribution networks. Its fanless, compact design is engineered to withstand the rigors of heavy industrial environments, ensuring maximum system uptime in critical infrastructure applications such as energy management and complex machine control.

Technical Configuration

The hardware architecture of the CX5130-N031-0003 centers on the Intel Atom multi-core technology, providing a deterministic control environment when paired with Beckhoff TwinCAT software. The "N031" suffix designates the specific factory-integrated interface: a professional-grade RS485 port. This interface is hardware-configured as a drop point with echo functionality enabled and internal termination set to "off," allowing for seamless integration into existing multi-drop serial bus topologies. The device features an internal I/O level that supports both EtherCAT and K-bus terminals, providing a versatile migration path for users upgrading from older bus systems. Its magnesium die-cast housing provides superior EMI protection and efficient thermal dissipation, eliminating the need for moving parts.

Technical Specifications

Technical FAQs

How is the RS485 interface addressed within the TwinCAT environment?

The RS485 port is treated as a standard COM port within the operating system. In TwinCAT, it is linked via the "Virtual COM Port" driver or accessed directly using the Serial Communication library for protocols like Modbus RTU or proprietary ASCII strings.

What is the significance of the "Termination Off" configuration?

Since the CX5130-N031-0003 is configured with termination off, it is intended to be placed as an intermediate node (drop point) in an RS485 network. If this unit is placed at the physical end of the cable run, an external 120 Ohm resistor must be added to the D-sub connector to prevent signal reflection.

Can this unit run third-party Windows applications?

Yes, depending on the ordered operating system (typically Windows Embedded Compact 7 or Windows 10 IoT), the Intel-based architecture allows for the execution of standard Windows-compatible software alongside real-time control tasks.

Engineering & Installation Guide

• Serial Wiring Best Practices: When utilizing the RS485 interface, use high-quality shielded twisted-pair (STP) cable. Connect the signal ground (Pin 5) to ensure a common reference potential between all nodes on the bus, especially in large-scale power protection environments where ground potential shifts are common.

• Thermal Clearances: To maintain the fanless cooling efficiency of the Intel Atom processor, the CX5130-N031-0003 must be mounted vertically on the DIN rail. Maintain a minimum clearance of 30 mm above and below the unit to allow for natural convection airflow.

• Interface Protection: The RS485 D-sub pins are sensitive to high-voltage transients. In outdoor or long-distance cable deployments, it is highly recommended to install an external surge protector (SPD) before the cable enters the CX5130-N031-0003 interface to prevent processor damage during lightning or switching surges.