HMI Pad Forums Main Forums HMI Pad Support Siemens S7 1200 V4.1 not connecting with HMI Pad

This topic contains 6 replies, has 3 voices, and was last updated by  hayabuta 3 years, 7 months ago. This post has been viewed 1227 times

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  • #21747

    hayabuta
    Participant

      Hello all,

      I’m a new user of HMI Pad and so far very happy with the solution. I have installed it on one of our processing system and it is functionally on par with much more expensive HMI solutions but yet a lot more flexible. Way to go SweetWilliam!

      Now as I gained confidence with the system, I ordered a new batch of S7 with the new firmware (V4.1) installed right off the bat. That’s when I realized that HMI Draw cannot communicating with the new firmware and tells me “an error was found in received data” instead every time I try connecting it with the CPUs. Since V4 S7-1200′s hardware is different from the V3s, I’m pretty much stuck with them. So I really need to figure out how to use HMI Pad with these V4 CPUs.

      Unfortunately the solution I found on the forum in this link http://www.sweetwilliamsl.com/support/forums/topic/an-error-was-found-in-received-data/ didn’t work out for me. It still keeps refusing to connect. At this point, my project can connect seamlessly with my old V3 CPUs, therefore I think the new firmware really is the problem.

      Could anyone please show me the way around this?

      Thank you very much in advance!

      #21748

      gregM
      Participant

        I have PLC’s with V 04.01.03, I’ll see if I can get V 4.1 on one and try to communicate with it.
        But it probably won’t be till tomorrow.

        #21749

        gregM
        Participant

          I guess the version that I have on my PLC’s is the latest version, and I have no problem communicating with it.
          there’s a checkbox that you have to check, Click device configuration, Click on PLC, Protection, Check Full Access.

          #21750

          hayabuta
          Participant

            Thank you for your very immediate help. I will go back and try again.

            I went offline, check the GET/PUT permission and got online again. I tried restarting a few times as well. I’m wondering how I am supposed to know if the checkbox has already taken effect. Maybe warm restart isn’t sufficient?

            #21751

            hayabuta
            Participant

              It turns out that I just forgot to apply the hardware configuration to the CPU. After downloading the setting, the error was gone.

              Instead, it shows another error “Connection error: “Connection refused”". I kept playing with the controller slot parameter but it only gets me a few tag updates before it goes “connection refused” again. What could be the cause?

              #21752

              Grzegorz
              Participant

                Hi,

                if You changes protection of PLC, need to rebuild all configuration and project of PLC and after this load it to the PLC.

                I use also S7 1200 v 4.1 without any problems ( my protection of PLC is like a screenshots )

                S7 1200 v4.1

                regards

                • This reply was modified 3 years, 7 months ago by  Grzegorz.
                • This reply was modified 3 years, 7 months ago by  Grzegorz.
                • This reply was modified 3 years, 7 months ago by  Grzegorz.
                • This reply was modified 3 years, 7 months ago by  Grzegorz.
                • This reply was modified 3 years, 7 months ago by  Grzegorz.
                #21759

                hayabuta
                Participant

                  Thank you Grzegorz! The solution is right. It is working now!

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