Raspberry Pi getting data from Micro 800

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  • #4004
    ThumperThumper
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      I am looking to extract some data(tag values) from a micro 800 controller using a Raspberry Pi  I was looking for advice/best way to accomplish this if possible.  

      #4005
      cajunconfiguratorcajunconfigurator
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        Hey Thumper.. what specifically are you looking to do? whats the end goal?

        #4006
        ThumperThumper
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          Thanks Sean. Looking to get some tag values from the plc and use an app to use the data from the pi unit.

          #4007
          Anonymous
            Karma: 0
            Rank: Padawan

            You can use an opc server like kepware, unfortunately very few of them are free, if you had a micro 850 it can do Modbus

            https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000PAbISAW

             

            #4010
            mrincrediblemrincredible
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              I’ve heard of people using FreeOpcUA Client on the pi side. Then use RSLinx OPC server to map and pull tags. I’m not sure if linx support OPC-UA or just OPC-DA but this may be the easiest way to pull data using a pi.

              #4011
              cajunconfiguratorcajunconfigurator
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                Right, Thumper I understand that you want to get the data.. but the reason I am is, its not like you can just put a pi on the network and suck in traffic. I dont know if a PI has the drivers to exchange on Ethernet IP

                Rockwell is a CLOSED architecture, with really proprietary data structures called tags. as far as I know there are a couple of driver sets that you could use to read the tag data, but most are for C# or Visual C#. I dont know if  there is a mono implementation  for ARM that you can leverage to run those.

                There was the LibPi PLC project but I dont know if its been kept up….

                You COULD.. read modbus values or get OPC data or a bunch of other things to interface the controller and get values and data… but i really think it will be tough to get native AB tags.

                 

                 

                #4012
                cajunconfiguratorcajunconfigurator
                Moderator
                  Karma: 187
                  Rank: Jedi

                  Right, Thumper I understand that you want to get the data.. but the reason I am is, its not like you can just put a pi on the network and suck in traffic. I dont know if a PI has the drivers to exchange on Ethernet IP

                  Rockwell is a CLOSED architecture, with really proprietary data structures called tags. as far as I know there are a couple of driver sets that you could use to read the tag data, but most are for C# or Visual C#. I dont know if  there is a mono implementation  for ARM that you can leverage to run those.

                  There was the LibPi PLC project but I dont know if its been kept up….

                  You COULD.. read modbus values or get OPC data or a bunch of other things to interface the controller and get values and data… but i really think it will be tough to get native AB tags.

                   

                   

                  #4014
                  Anonymous
                    Karma: 0
                    Rank: Padawan

                    Hi Sean,

                    Following up on the .NET application drivers, which one is the best in your opinion? If they have their own merits, what are those merits?

                    I came across ASComm.NET (https://automatedsolutions.com/products/dotnet/ascomm/), REACT.NET (https://react-css.com/allen-bradley-drivers/) and INGEARS (https://ingeardrivers.com/products/net-products/netlogix/). Maybe there are more, you can enlighten me on that as well.

                    Looking forward to your advice.

                    Cheers,

                    Alfred

                    #4145
                    StixoffireStixoffire
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                      Use PyLogix on Github ..

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