Kathrin

Hello I want to controll a motor with LabView through a serial port. I am able to make it move by entering a command in LabView. With one of them I want to know the position of the motor. So I have to read the answer at the serial port. I am able to give the command to the port but when I want to read the answer I only read the command. :headbang: How may I be able to make the interface know that I want to read the answer? I already took some loops to wait but it still does not work... I looking for some help cu Kathrin :-) P.S.: I added the VI Download File:post-4227-1140699207.vi