Failure to connect to DHCP network

    Hello everyone, i am working on a research project. I have a system with a kollmorgen servodrive, a compactrio 9054 and a Fanuc R-2000ic 125L with a 30ib plus controller. I am trying to connect all these component through a switch and the only one that does not get an automatic ip through DHCP is the robot controller. When I check the status window it is shown that the link state is 100/full in the port 1 but I still get the failure on DHCP status and thus I cannot have an ip. Does anyone have an idea why this is is happening, i would greatly appreciate the help.

  • kwakisaki March 4, 2025 at 7:11 PM

    Approved the thread.

    Have you enabled DHCP from the TCP/IP setup screen?


    Have you setup any of the advanced DHCP menu items?

    These topics are covered in the Internet Options Setup and Operations OPERATOR'S MANUAL (MAROUIN9010171E).

    Why not use a Static IP? I don't know that I've ever run into an industrial network that was setup for DHCP.

    This is what is shown in my TP. I was trying to use a DHCP setting rather than static because i have all the components of the network connected to a switch that is later connected to my PC. Previously when I tried an static approach on the servodrive of the servomotor (with ip address 169.254.xx.xx) I could not connect to it. Is it possible to have an static ip connected to the switch and still have communication between devices?

    Quote from sanch509

    Previously when I tried an static approach on the servodrive of the servomotor (with ip address 169.254.xx.xx) I could not connect to it. Is it possible to have an static ip connected to the switch and still have communication between de

    Of course, this is "industry standard", think you made something simple wrong at your attempt to use static ip.

    I put the following ip:

    169.254.208.201

    And the ip of the pc is 169.254.xx.xx. At pinged the rest of the components and it worked alright, I tried with the Port A and i only got a request time out and with port B I got adestination host unreachable notice. As well I tried to establigh a DHCP connection through both ports and it failed.

    I tried your suggestions and could succesfully ping it to the compactRio, but im still having trouble with the PC. I wanted to use roboguide and labview (a vi running in the pc) with it but I do not know wy the ping is still unsuccesful.

    Apparently it is connected to the PC? I could create a copy of the software throught the robot neighborhood in roboguide but still I do not know how to send and receive data through an external VI given that ping is timed out. Should I fovus better on an FTP connection?

    I wrote the subnet you recommended me, and the pc ip is 169.254.208.200. But as i said i could add the robot into the robot neighborhood and when I created a copy of the robot into robodk, every change i made to the robot controller was also copied. So it is connected, I think at this point is more of a question of why I cannot ping to the pc and how can i assure the data i get from a labview vi is correct.

    Btw. Thanks for the previous help

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