How to connect to Siemens S7 plc with C# and Sharp7 library

[@giossicom]

Excellent, it works like a charme. In my case, I had a S7 1200 without the ability to use the dbRead command, so I just tried the ReadArea method and it worked as intended.

[@mohammadjalali660]

Hi how could I connect to PLC with MAC address. I want to write a program that connect to PLC with MAC address but Shrp7 take an IP. Please help me. Thanks

[@marioviola1983]

Nice video. Do you know wich is the best samplerate using this library?

[@nicowalter3186]

@Mesta Automation I have a question. Is there a way to run a code that gets the data’s automatically . For example I run the C# code and now the code once read all variables. Now the code is like in a standby mode and just read variables again when the variables got changed. I hope u understand what I mean.

[@joshiyash1011]

Hi, May i know how to connect to S7 300 having a access password protection setting enabled with a script having its password to unlock it from visual studio C#

[@xigbar02]

How do u know which one to write on DBread and which one to write on DBwrite?

[@davidloviscek7859]

Very good presentation. Bravo!!!

[@burner985]

awesome video! working as described, looking forward for more :)

[@aminecode]

It's working for me , thanks for you share , the video is well detailled

[@mahesaputra8385]

I got error CPU : Address out of range when try to accessing PLC S1200, please help any solution for this?

[@FernandoSilva-kv3ze]

this is amazing ! That help me a lot thanks, good work

[@НиколайСуди]

Please tell me how to cyclically read data

[@yunus11111111111]

very well. but can i use c++ with that?

[@FUNktshnl]

Is there a similar method to convert the buffer-values to decimal values for C++?

[@PIDOtomasyon]

hi dear, I want to connect to S7-300 and get datas, is it possible, can you share an example please. Thank you.

[@tekparautomatyka9474]

I've got a WORD variable at DB6.DBW272 and I can't get this value. Does it mean that address 272 is to big? If yes, then what is the biggest address in DB block? Please answer me, maybe I'm doing something wrong

[@tekparautomatyka9474]

I'm sorry everything is fine, that was my mistake. Thank You for this video

[@marcol5374]

Grazie Michele, ottima spiegazione :)

[@TheBreadshort]

Hello! Can you tell me what library is better, S7.Net, Sharp7, libnodave, whatever? Or maybe better use ModBus or raw TCP packets (TSEND_C/TRECV_C)?

[@Mesta-automation]

For new projects I use Sharp7.

[@TheBreadshort]

Thank you

[@mehmetturan8500]

when run the projet " a project with Output type of Class library cannot be started directly" recieve this message. how fix. when build libraray doesnt show any error

[@aknsibay8262]

Hi Thank you very much for your video. I can connect to s7-1200 plc because of your codes. But i've got an error message while i was trying to read DB. Error: ISO : Invalid Buffer passed to Send/Receive What can i solve this problem?

[@andrefelipepinheiroaleixo7737]

Thanks, Abdullah.

[@borakian]

Hi Mesta, really interesting video. I'm interested in getting information into Unity3D from TIA Unity uses C# as one of its scripting languages do you think that sharp7 would be easy to use?

[@Mesta-automation]

I never used Unity, but since it's capable of using .Net sockets, you should be able to use Sharp7. Someone already asked me the same question and in the end he got the communication up and running. Still, I don't know how difficult it was for him.

[@safaboumaiza2232]

please i want to know how to read input/output like (I0.0//Q0.0) and memory adress like (%M0.0,%MW2, %MD20,%MD30) could you tell me how to code it with sharp7 library?

[@Mesta-automation]

In user manual, page 33, you have the list of available functions, like MBRead, MBWrite, ABRead, etc...

[@safaboumaiza2232]

Could you please give me an example how to read variables like MBRead ( bool,enteger or real) ; i didint find examples :/

[@sthreetorch]

Thank you for sharing. BTW, how are you able to get the PLC IP address?

[@xigbar02]

you go to plc configuration, then u double click on the ethernet picture inside the plc picture, then u go for general, ethernet adress u will find it there

[@김정웅-w3w]

Very Nice. Thank you!!

[@roberto.rojasrangel]

Thanks, good work

[@automatykairobotyka6ct484]

I found 1 problem. When I have the value -1 in db2dbw2 and i want to get it to the VS, then I see that instead -1 the value is 65535. So this is still a posituve value. How to change it into negative?

[@MartinMaat]

It sounds like you declared your type to be ushort where it should be short.

[@nguyenquocbao3812]

the IP address you typed 127.0.0.1 is the IP address of your PLC or your PC ?

[@alz4452]

hi, if you want working with plcsim you need use NetToPLCsim

[@pradeepmourya9362]

I want to connect my plc with ASP can u help to do that or any example for reference

[@mohamedsaied5780]

Good effort!

[@marekmagath7090]

Hey guys, can i connect more PLC to my program with snap7?

[@Mesta-automation]

Yes, you can create as many S7Client you like, then use ConnectTo to assign ip to every different client. Every S7Client instance should have it's own ip.

[@marekmagath7090]

thank you :)

[@marekmagath7090]

and did you find some examples for Asynchronous functions?? Or could you make video on it?

[@alexandersentcha8323]

Could you please tell how to use with VB?

[@alexandersentcha8323]

Everything are working.

[@PhongTran-tz3ee]

"byte[] db1Buffer = new byte[44]; result = client.DBRead(1, 0, db1Buffer.Length, db1Buffer);". I see this code, but i dont know how to determine DB number, start value and size. Any one can help me, please? thank you!

[@Mesta-automation]

That instruction is reading DB1, from index 0, 44 bytes, and it's putting the result on db1Buffer.

[@Automation28]

[@manueld1892]

Thanks!

[@JMMedinaDev]

is it tested on real operation with a real PLC and working? What version .net you need to make it work? I would like to put it together with Unity Game engine and make the magic happen. But I fear I wont be able to maintain this in asynchronous operation while a main thread do the game engine magic.

[@Mesta-automation]

People already did things with Unity and Sharp7. Run a search for "Unity" in the commens of: www.mesta-automation.com/how-to-write-a-siemens-s7-plc-driver-with-c-and-sharp7/ Check also github.com/stefan-schindler/plc-programmable-3d-simulation

[@JMMedinaDev]

Mesta Automation thanks you

[@JMMedinaDev]

In your opinion wich driver you feel more confortable with, Sharp7 or S7.Netplus? I made unity work with S7.netplus cause its a plane dll you import to unity, but Sharp7 feels more robust and the documentation is great.

[@mohamedsoliman624]

thanks a lot

[@ajayjatode419]

your website not working too much ads coming

[@Mesta-automation]

Sorry, should be fixed now

[@eset3649]

cool thank you

[@luslus..19]

What is the difference between Sharp7 and Snap7 ?

[@Mesta-automation]

Sharp7 is C# only, Snap7 is C++ with a C# wrapper.

[@thanhnguyenminh8500]

TEST OK WHEN CONECT S7 1200 BY SIMULATION BUT DO NOT CONECT WHEN CONECT PLC S71214 AC/AC/RL REALITY, PLEASE HEPL ME AND EVERYONE !

[@user-li1uz3wu7w]

Hi! as I understand you correct, you may need to change the default IP of the PLC, it's 0.0.0.0 as I know Check this article to make it clear: support.industry.siemens.com/cs/document/41737436/how-can-you-change-the-ip-address-of-an-s7-1200-without-using-step-7-basic-?dti=0&lc=en-WW Cheers

[@antoniijalarsson7277]

You are impossible to understand. Any English versions.

[@MartinMaat]

I had no trouble understanding what he said. I had more trouble reading his code which is too small.

[@toxk1]

Very good! Thank you a lot!!

[@mohamedaitali5724]

thanks for help. good work