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Cmore to BRX plc protocol

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  • Cmore to BRX plc protocol

    I have a EA9-T7CL-R HMI that I need to connect to a BRX-DM1ED23D PLC using a ethernet connection. I have programs loaded in both the HMI and PLC but not sure of the ethernet settings in either. I have tried all the ethernet protocols in the HMI drop down menus but unable to connect. The drop down menu does not list the BRX PLC ethernet. I get a PLC timeout message on all other protocols selected.


  • #2
    try DoMore
    Whether Symbolic or not, I do not know.

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    • #3
      I will try after work. Thanks. Should the PLC and HMI ip addresses be the same?

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      • #4
        No..

        The PLC will have it's IP Address.. and the HMI will have it's Address.. and the HMI will need to know the PLC Address..

        Same Sub Net.. so the First Three Octsets ( 192.168.2.?? the first three groups of Numbers ) have to be the same.. The Last Digits ( The ?? in my Example ) will be unique for each piece of hardware on the System

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        • #5
          Thank you. I thought it needed to be different. I did try different addressing and protocols with no luck, at least now I know what's correct.

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          • #6
            Can you communicate to the PLC and to the C-more via Ethernet from your PC? If not, get that working. Use Do-more Designer for the PLC, and the C-more configuration software for the C-more. If you need help with this, tell us your PC's
            1. IP Address
            2. Subnet Mask

            Are you on a company network?
            There are 10 kinds of people in this world, those who know binary, and those who do not.

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            • #7
              You may find these videos useful.

              Ethernet in C-more and BRX:
              https://www.automationdirect.com/vid...at2=56&cat3=57
              https://www.automationdirect.com/vid...at1=12&cat2=14
              https://www.automationdirect.com/vid...at1=12&cat2=14
              https://www.automationdirect.com/vid...&cat2=2&cat3=3

              And this page of videos on BRX
              https://www.automationdirect.com/vid...&cat2=2&cat3=3

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              • #8
                I did no connect to either plc or hmi through ethernet yet. I programmed both from usb. I will try later today and post results. I am not on a company network.

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                • #9
                  Originally posted by jroad19 View Post
                  I did no connect to either plc or hmi through ethernet yet. I programmed both from usb. I will try later today and post results. I am not on a company network.
                  That works. It's easier to understand/diagnose/fix from the PC with a PC based application.

                  Is it on a network that has other things on it, like an Ethernet printer or a WiFi or Gateway, so maybe there is an established subnet?
                  There are 10 kinds of people in this world, those who know binary, and those who do not.

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                  • #10
                    On the finished project the plc and hmi will only communicate to each other directly through ethernet. No outside networking

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                    • #11
                      In some ways that is better (i.e. fully isolated). So you probably will NOT have a switch, and you will ever need to connect your PC via Ethernet to either device (i.e. you will always use USB to connect your PC to the C-more and to the BRX)?

                      We can define a subnet for the two devices. Definitely watch the first video HMI Eng posted on IP Address Basics and Subnetting
                      There are 10 kinds of people in this world, those who know binary, and those who do not.

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                      • #12
                        I think a direct Ethernet connection you need to use a crossover cable. At least on the Productivity series controllers to Cmore you do.

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                        • #13
                          Working now. Results are, the cable does not need to be a crossover. The protocol needs to be Domore ethernet internal memory. As CAP mentioned the IP addressing needs to be different. The protocol selection was my problem. Thanks to everyone for all the input. Hope it can help someone else also.

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