7. Connection Procedure 7.3.2. Starting the CX-Programmer and Connecting Online with the PLC Start the CX-Programmer and Connect Online with the PLC. Install the CX-One and USB driver in the personal computer beforehand. 14 1 Start the CX-Programmer. 2 Select Auto Online - Direct Online from the PLC Menu. 3 The Direct Online Dialog Box is displayed. Select the USB Connection Option for Connection Type and click the Connect Button.