user: ### NOW ANSWER:
Question: What is the millisecond cycle for the Fieldbus?
Columns: ['Fieldbus', 'Bus power', 'Cabling redundancy', 'Synchronisation', 'Sub millisecond cycle']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['AFDX', 'No', 'Yes', 'No', 'Unknown']
SQL:

assistant: SELECT "Sub millisecond cycle" FROM "Table" WHERE "Fieldbus" = 'Fieldbus';