A20B-8101-0050 ProfiBus Communication Board
- Fanuc Part # A20B-8101-0050 is a ProfiBus communication board for use in R30IA controller.
- PROFIBUS is a standard for fieldbus communication in automation technology and was first promoted in 1989 by BMBF and then used by Siemens.
- It should not be confused with the PROFINET standard for Industrial Ethernet.
- PROFIBUS is openly published as part of IEC 61158