cx9010-n031 Beckhoff
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The cx9010-n031 is manufactured by Beckhoff and is part of the CX Embedded PC Systems series. It features a 9-pin D-Sub socket connector and supports an RS422/RS485 interface type with a maximum baud rate of 115 kbit/s. The device operates in RS485 factory mode as an end point and includes one port.
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Product Description:
The CX9010-N031 embedded PC module is produced by Beckhoff within the CX Embedded PC Systems series. The unit serves as a serial communication interface that integrates with the CX9000 controller core, allowing field devices that use differential line signaling to connect directly to the automation network. The module can route data from barcode scanners, weighing scales, or intelligent sensors into the PLC program without requiring separate gateways. Its compact design supports installation within the Beckhoff DIN-rail architecture while reducing the amount of additional communication hardware needed inside the control cabinet.
This model provides one serial channel, and its signals are presented through a 9-pin D-sub socket. The connector supports cable shielding and positive latching, which help maintain a secure physical connection in industrial equipment. Electrical communication follows the RS-422/RS-485 standard, which uses balanced signal pairs to resist electrical noise over long cable runs. The RS-485 option also supports multidrop device networks when that operating mode is selected in the controller software. The line speed reaches 115 kbit/s, providing sufficient throughput for frequent sensor polling, serial device communication, and HMI text updates without placing an excessive processing load on the embedded controller. The module starts with echo disabled by default, preventing redundant characters from returning to the master during half-duplex communication.
The module uses an automatic receive mode by default, so manual direction control is not required when the controller begins operating. Its send mode is also automatic, allowing the interface to manage transitions between transmission and reception during serial data exchanges. Integrated end-of-line resistors are active because the module has termination enabled by default. The device is supplied in RS-485 factory mode, supporting immediate use with compatible serial networks after the required software parameters and wiring have been configured. Beckhoff designates the device as an endpoint, so its internal 120-ohm network load remains active until it is disabled through software. This active load helps maintain signal quality when the module is installed at the final position on an RS-485 trunk.
