ABB PROFIBUS Redundancy Link Module RLM01 3BDZ000398R1

Description

The ABB PROFIBUS Redundancy Link Module RLM01 3BDZ000398R1 is a member of the ABB RLM series, designed to enable reliable PROFIBUS cable redundancy in industrial automation systems. Key features include automatic failover to a backup link in the event of a primary link fault, ensuring uninterrupted communication and system continuity. It supports bidirectional signal conversion, transforming single-line PROFIBUS DP signals to redundant dual-line signals and vice versa, making it suitable for integrating non-redundant devices into redundant networks. The module offers plug-and-play functionality for simple, tool-free installation, and is built with high-quality materials for stable operation in harsh industrial environments.

Technical specifications include a 24V DC input voltage (with a stable operating range of 20V to 33V DC) and a typical power consumption of 3.6W. It is equipped with 3 PROFIBUS ports (A, B, C) to support redundant link configurations, and supports communication rates from 9.6 Kbps to 12 Mbps. The module can connect up to 31 PROFIBUS client devices, with expandability via optical repeaters. It operates in temperatures from 0 degrees Celsius to 50 degrees Celsius, with a storage/transport temperature range of -30 degrees Celsius to 85 degrees Celsius, and can tolerate maximum relative humidity of 75% without condensation during operation. Ideal applications include industrial automation, building automation, and power system automation control, where it provides overload and short-circuit protection to enhance system safety.