The Agile filter wheel controller can be accessed via telnet to agile-rotator on port 4100. Close the socket when you are finished (there is no disconnect command). ... Always prefix filterwheel commands with "fw ". ... If you mistype a command that does not have an "fw " prefix then you'll get whatever the rotator controller outputs. ... Returns status . Move filterwheel slot n , where 1 n 6. ... low-level stepper motor controller status . ... high-level filter wheel controller status . ...