ABB CI 930F 3BDH001010R0002 PROFIBUS DP Master Module. CI 930F is module is a PROFIBUS DP master, but with additional features compared to CI 773F. CI 930F supports built-in line redundancy. Each PROFIBUS module allows the connection of a PROFIBUS line of maximum of 126 slaves. Each of these slaves can be modular. Our products are 100% New & Original, fast delivery, low price promotion, One-year Warranty. If you need more information, please contact us.