Dear,I run to this problem when I updated the firmware in myrio 1900 from version 3.0 to 3.5. Before update the thrusters was running fine by using the run engine, after update the thrusters not running anymore. Any helps will very appriciated! ThanksLong

Hey Tao! I'm glad to hear your ports are showing up in MAX now. And I think it's a good idea to use the analog output on the myRIO. As long as you know what voltages the motor controller needs in order to command the correct moves and a control loop in place, you should be good to go.