CRBX01 ABB Communication Repeater Module
Description
The CRBX01 ABB Communication Repeater Module is a compact remote bus expander belonging to ABB’s Freelance and Symphony Plus product lines, designed for large distributed control systems. As a fiber optic repeater, its core functions include transparently extending HN800 and CW800 IO buses, supporting point-to-point communication between SD series and HPC800 series controllers, and enabling connection of up to 60 HN800 devices. Key technical specifications include a communication rate of up to 4 Mbps, maximum transmission distance of 3 kilometers via 62.5/125 micro multi-mode fiber cable, and 1200 meters via standard fiber. It operates in temperatures ranging from -25 degrees Celsius to 60 degrees Celsius, with an IP65 protection rating for reliable performance in harsh industrial environments. The module features an RJ45 port and PROFIBUS DP interface, runs on 24V DC power with less than 5W power consumption, and has compact dimensions of 122 x 25 x 26 mm, weighing approximately 170g. It supports PROFIBUS DP C redundancy, STO function, safety monitoring, and holds SIL2 certification. Additional features include no-config plug-and-play integration, support for multiple communication protocols such as CAN, RS-232, and RS-485, and compatibility with analog, digital, temperature, and pressure sensors. Ideal applications include industrial automation, distributed control systems, energy management for power, thermal, nuclear, wind, and gas sectors, and smart sensor interface setups.