How to communicate to an Allen Bradley PLC with C# using LibPlcTag library

[@nqaiser]

Thanks for this. Can you read a BIT from the Micrologix PLC aswell it has to be always an integer.

[@juandelarosa4434]

Thank you 🙏 I used the library with Visual Basic Code in Visual Studio 2015 on Windows 10 and it works very well with a PLC MicroLogix 1100. Good video and good web site. Greetings from Mexico 🇲🇽

[@djlowformat]

hi i am having issues connecting to a 1400 , what cpy type are you using? my program crash when checking for the status on the second rung before the read tag

[@gonzalomateos6948]

Disculpa Juan, en visual studio, el proyecto lo pudiste hacer como aplicación de Windows form?? Ya hize tal cual este video, pero sale la pantalla negra para mostrar el valor leído, quiero saber si es posible verlo en un textbox

[@gonzalomateos6948]

djlowformat is SLC type

[@KanenasAnyparktos]

can you share the source code?

[@EmrahKemik-w1n]

Great work. Thanks for sharing, bro.

[@jaimebatistaschuh1189]

great video, I would like to know if you have an example of how to write a boolean tag with compact logix

[@rafaelbonatto9143]

Thanks for the video. Do you know if you can use it with the Studio 5000 logix emulate?

[@alexmerit1414]

Thank you very much. Great video

[@PsykeBr]

Liked before watch! You aways make good videos. Thanks for your work! 👍🏻

[@jaikumaran2607]

Hello, this is a great tutorial video!! I have a question, I have micrologix850. And the mentioned PLC was programmed using Connected Component Workbench. Will I be able to read/write the values based on your tutorial? Thank you

[@oscarchavez8302]

I have the same question right now, I have micro820 plc, Did you try it using CCW?

[@hfe1833]

How to use it in java?

[@harikrishnasajja2946]

Thanks, Nice Explain. Using this library i can communicate with Allen Bradley Micro820(2080-LC20-20QBB) PLC?

[@linliu6690]

Hello, can you send me an example of your test success, lend me a reference. My email: [e-mail]

[@faisalnadeem53]

Hey Hari, Were you able to establish communication with Micro850?

[@engr.inigo.silva2000]

Bro, this library is able to use Visual Basic language?

[@tejaswikc5370]

Great Video, I have one question Can I use this library LibPlcTag for my project ? or Do i need to pay money for this ?

[@ahdezf]

no

[@EnriqueRK]

Could you explain how to read and write bit (B3:0/1), that could help me a lot. Thanks in advance

[@derekkendrick]

Hi does this work in xamarin forms Many thanks

[@ubafoxMauro81]

What is your VS Version?, mine is 2019 and throws errors everywhere as soon as I put the project reference like you did in this video

[@hectormzt1]

that's the same for me

[@jonathanblekkenhorst3770]

Same. I was able to fix it by making sure that all the projects were targeted to the newest .Net framework

[@tejaswikc5370]

Hello Team, Using this dll Is it possible to populate all the tags from the controller ( Any family) ?

[@saju8664]

Hi, good video. I tried with the library LibPlcTag but now is not working. Please could you do a new video about this? Please

[@MartinMaat]

Thank you. I watched your #7 video as well. So both allow me to actively read and write particular tags and I have to specify the correct type. I can read, only to find nothing has changed. This seems hardly helpful and quite error prone to me. I am puzzled by the stupidity of these APIs. What would be helpful is a subscription mechanism. I want to subscribe to a tag and be called after its value changed. And not more often than once every x ms, to be set by me. The event arguments should tell me the tag name, the new value and the value type. Even if the PLC does not offer this basic feature it could still be offered by the library API. The library could poll the subscribed to tags for changes and raise an event when appropriate. I don't think it is my job as an application developer to do the dirty work. If this is it I might as well use a socket and listen to what the PLC has to say myself.

[@ManhTien0055]

Great work, thank for sharing

[@jamespayne5645]

Big fan.,

[@Rudolf215]

can you communicate to an Allen Bradley PLC with assembly by chance?

[@suhasdpatil]

Hi, Thanks for sharing this video. It is really helpful. I went through the link you provided and saw Get and Set functions of different data types. However could not see Get and Set functions for string data type. Can you please let me know how to read and write to a tag of data type string? Thanks

[@jaihm6065]

i to facing same problem ,if u got answer please let me know to my mail [e-mail]

[@nadeem2nazar1]

Hi, what would be IP Address Incase Micro logix 1200. Serial Communication rather then Ethernet. Example(var tag = new Tag("AB_DF1-1", CpuType.SLC, "N7:0", DataType.Int16, 1); Thanks

[@nicwilson58]

thanks this helped a lot.

[@djlowformat]

cant connect to a ab 1400 program crash when checking the status before reading the tag, any ideas?

[@jaihm6065]

Can you let me know how to read and write string tags

[@hameedtalebi2351]

have you tried to connect to controLogix emulator? I don't have a PLC around and need to test this using an A/B contrologix emulator. the client (Libplctag() variable) can't connect. I have specified the path to be "AB_VBP-1,2" . The emulator is inside VM, but I am running the program on the host.

[@alejandroarevalo4505]

I`m in the same way, do you can running welll your program? I have error code -3

[@kossakossa8405]

Would you know how to set up the communication with rslogix5000 emulate? i have emulate and a softlogix emulated plc in slot 2 of a virtual back plane, and i used my computers LAN IP with 1,0 and 1.2 both was unsucessful. kept getting 0xc000013a error.

[@lucaslima4200]

How to read Float value?

[@Palash-Jain]

Hi Michele, Your contents are so helpful for me, thank you so much. Currently, I am trying to read data using pycomm python libraries, If possible can you please help me, how can we use this and there is any content for how can we read data with python Cheers, Palash Jain

[@DMarkezDj]

Its more easy read PLC Tags with pycomm than C# hahaha I tried long time ago with Python and its better, trust me. haha

[@tejaswikc5370]

Hello , Could anyone please help me with information . Is there any possibility to list entire global variables of Rockwell plc in a datagrid ?

[@HetanHawke]

thanks Mr .

[@jonathanalexissanchezsanto3356]

Hi!, this works for Micro Series of Allen Bradley?, i have a Micro850 and i check the project of the LibWrapper, i can't find the Cpu Type for my PLC model.

[@faisalnadeem53]

Hey Jonathan. Were you able to establish communication with Micro850?

[@distorsioname]

@@faisalnadeem53 it's complicated I am working with something similar but in a .net interface I already have the communication but the bits still need to be place.

[@techacademy9787]

Hi I have to do it PLC -Type 1756-L61 Controllogix. Tag Name Test_Tag controller slot number 1 Ethernet card slot number 2 please help me with tag creation

[@mikekosak9598]

cannot understand half of what you are saying.