The parameters are specifically categorized as Option Parameters for controllers like the Series 16i, 18i, and 21i . These parameters determine which software features and hardware capabilities are enabled on your machine. Key Insights on 9900 Parameters
For Fanuc controls manufactured after 2006, these parameters are often hidden from the standard parameter screen and are instead stored in . This ensures they remain intact even if the main memory is wiped. They are typically accessed through a specific diagnostic screen rather than the standard system parameter list. Common 9900 Series Parameters fanuc 9900 parameter list
If you change a standard parameter incorrectly, you might get an alarm or a crash. If you change a 9900 parameter incorrectly, you can instantly , make the screen go blank, or wipe out critical system options. Because these parameters configure the core hardware communication, the control may not even know how to boot up properly if they are altered. This ensures they remain intact even if the