text: <s>[INST] PowerFlex 753 with 20-750-ENETR Summary: Communications question.I have a PowerFlex 750 with the 20-750-ENETR option module installed. I have set the IP address using the parameters, have left the digi-switches at 999, and set parameter 5 to 1 - parameters. The ethernet cable is connected to a plant network hub, and I have yet to add the drive to the ControlLogix tree in the program. The Mod and Net A leds are flashing green. I have been unable to ping the drive at the address that is set. Is the drive able to be pinged, or do I need to get it connected to my PLC. Thanks. [/INST] I forgot - are the ports in the plant network switch allowing traffic to get through? Best way to test is for you to connect your computer directly to the drive, eliminating all other variables. Put your computer on the same subnet as you gave the drive, and ping it. If you can do that, the problem is external to the drive. \\n </s>