BasicMicro

installed USBRoboclawVirtualComport on my PC, download BasicMicro Motion Studio, when open it, there is not device can be selected. Checked device manager in Windows, there is not port number is shown.
I used IONStudio before to config RoboClaw.
Why I can't use it again, can't detect its port number.

Please confirm how you have the Roboclaw powered. Roboclaw must be powered from main power or logic power to be detected by USB. USB alone will not power the controller.