FANUC A20B-8100-0430 is a PROFIBUS-DP communication PCB with master function for compatible FANUC CNC systems. It provides the CNC controller with a PROFIBUS-DP master interface for communication with peripheral and slave devices. FANUC maintenance manuals specify this board for Series 0i-C, 0i Mate-C and Series 16i/18i/21i Model A configurations. The board uses the FANUC F-BUS backplane connection and includes adapter interfaces for master/slave station configurations. It is suitable for CNC communication-board replacement and maintenance. [stock available]