in continuity of our communication,  i stil have the problem with connection.

I want't to ask how can i test the USB2Dynamixel  because i think there is a problem with it.

BUT:

I made the process from the beginning
I unistall RoboPlus manager for my PC and i have re-instaled from start and the USB2Dynamixel connected properly and the port is com6 to my PC and the Roboplus manager. Whe itry to connect the USB2Dynamixe with the serial cable to cm510 : it is not connected . The TXD in USB2Dynaxixel is blinkswhen i try to connect (the mode switch is in RS232-FOR CM510)

After this failure i try to connect a servo AX-12 with USB2Dynamixel (mode switch TTL), i connect the servo to usb2d. and the servo to cm510 controller (witout serial cable)  and i try to search the servo to roboplus manager : error connectio is the result  and i try with the Dynamixel Wizard : error is the result

THAT IS ME PROBLEM

I read again the USB2Dynamixel manual (www.robotis.com) but i don't know what alse to do??????

IHAVE THE PROBLEM WHEN ITRY TO CONNECT WITH USB2Dynamixel WITH HAVIMO2 CAMERA AND I DID NOT SUCCESS , AFTER THAT THE USB2Dynamixel connect properly to me PC but not with the cm510(RS232 MODE) and with the servo (TTL mode)