EL6861 is an industrial communication module designed by Beckhoff for RS485 networks operating at temperatures from -25 to 60°C with an IP20 protection rating. The module is designed for use on the Beckhoff's Industrial Automation system, allowing machines to be networked and thereby allowing more efficient operation, faster response times, and improved data analysis. It provides reliable communication for nodes on an RS485 network, and is suitable for use in a large variety of industrial-level applications. The module is easy to install, configure, and use, making it an ideal solution for many industrial control applications.