In association with the Click-On-Fault test screen, Megger
has also included a feature called RIO Import. RIO is a file
format that defines the operating characteristic of specific
relays. Customers who already have RIO files for their
relays can import them into the Click-On-Fault RX diagram
ready to test. Shown below is a RIO file import for a SEL
321 relay. Six shot test points are defined