How to Update FANUC Profinet Board Firmware and Change Channels

This video provides a concise guide on updating firmware and switching between Dual-Channel and Single-Channel modes for the FANUC PROFINET board on v9.40+ controllers. The process requires first removing all board connections and then selecting the program PNFBUPDT.PC on the teach pendant. The user must disable I/O functions and power cycle the robot before choosing the desired channel mode, which triggers the "firmware update needed" alarm. The update program then executes, requiring the user to confirm the process by pressing '1'. It's critical not to power off the controller during this brief, three-minute process. This procedure is necessary when changing channel modes, after software updates, or upon replacing the board.