Benja (Customer) asked a question.

July 22, 2024 at 10:00 PM
How to fix "Disabled" and time out error for BRX PLC with ethernet connection

I have been trying to connect to my BX-DM1-36ER-D BRX PLC but I can not get past the time out errors. I have attached three pictures of errors that I can find and would appreciate any help on next steps. My ethernet adapter IP and subnet match the PLC's IP and subnet numbers.Splinter_3Splinter_1 

  • 10 answers
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  • HOST_franji1 (HOST Engineering)

    You can "enable" the link by clicking the Link Enabled checkbox in the Link Info dialog.

     

    However, your issue is a connection issue.

     

    What is your network setup for your PC you are using? What is your PC's subnet and subnet mask, along with its IP Address?

  • Benja (Customer)

    My ethernet adapters subnet mask is 255.255.0.0, with an IP of 192.168.1.40. My wireless LAN adapter for Wifi has a subnet mask of 255.255.255.0, with an IP of 192.168.1.245. Let me know if you need more info than that.

    • HOST_franji1 (HOST Engineering)

      With a subnet if 192.168.x.x on wired and 192.168.1.x on the wireless and a PLC IP address of 192.168.1.40, I am not sure how your computer is trying to connect to the PLC. You may need to disable your wireless in order to resolve the conflicting subnets, or enable the wireless but disconnect the cable to your adapter.

       

      Is there a specific subnet port you are expecting it to utilize?

       

       

      Expand Post

    • HOST_franji1 (HOST Engineering)

      Sorry, I misunderstood. It's your PLC's Ethernet Adapter subnet mask is 255.255.0.0 with an IP Address of 192.168.1.40 - that's fine to work with your PC's wireless. Try pinging your PLC from the cmd line. Just type ping 192.168.1.40 at the cmd prompt and see if you get a response from the PLC.

  • HOST_franji1 (HOST Engineering)

    Make sure you have checked the Link Enabled checkbox in the Link Info dialog

  • Benja (Customer)

    I disconnected from my wifi, hooked up to the PLC, pinged it and got a response. My connection issues were fixed from there. I'm guessing that I must have had another device on the wireless network assigned to one of my IP addresses and that was interfering.

    • HOST_franji1 (HOST Engineering)

      So please answer the question then:

      1. Do you have both a wired IP connection AND an WIRELESS connection to the same subnet 192.168?
      2. What is the IP Address of your WIRED network adapter?
      3. What is the IP Address of your WIRELESS network adapter?
      4. What is the IP Address of the PLC?

       

      Expand Post

  • Benja (Customer)

    1. I have just a wired IP connection to the PLC
    2. The IP address of my WIRED network adapter (the USB-C to ethernet cable) is 192.168.1.39
    3. When I turn off my wifi I believe there is technically no WIRELESS network adapter.
    4. The IP address of the PLC is 192.168.1.40

    • HOST_franji1 (HOST Engineering)

      I think what is happening with the Wireless enabled, its subnet is

      192.168.1.x

      and the wired subnet is

      192.168.x.x

       

      and when Designer asks the O/S to send packets to

      192.168.1.40

      that IP Address falls on BOTH subnets. That is not good - every subnet should be disjoint/unique so that the O/S knows how to route any packet from your PC to any IP address on EITHER subnet.

       

      Hence, when you DISABLED your WIRELESS, that eliminated the confusion to the O/S and so it started routing packets out the proper port (subnet).

       

      If you have an IT person, they may be able to help you with the wired and wireless IP configurations, and your connections to the PLC.

      Expand Post

  • OkiePC (Customer)

    In my opinion, you should never use the same IP scheme that every router out of the box will have. Your problem originated from the fact that you had not only one, but two ethernet connections with the default scheme (aside from the mask) of 192.168.1.x

    The 'puter has no idea how to route packets when there's this fork in the road.

 

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