Raspberry Pi getting data from Micro 800

[Thumper _ParticipantKarma: 141Rank: Jedi]

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.  

[Sean TerrellModeratorKarma: 187Rank: Jedi]

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

[Thumper _ParticipantKarma: 141Rank: Jedi]

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

[AnonymousKarma: 0Rank: 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

 

[mrincredibleParticipantKarma: 53Rank: Padawan]

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.

[Sean TerrellModeratorKarma: 187Rank: 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.

 

 

[Sean TerrellModeratorKarma: 187Rank: 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.

 

 

[AnonymousKarma: 0Rank: 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

[Ken SParticipantKarma: 172Rank: Jedi]

Use PyLogix on Github ..

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