C# and Siemens PLC lesson 1 - Read data from PLC

[@satanrm]

Thanks for the video.

[@plcfocus.solution]

You are welcome!

[@rafaelm.deoliveira3457]

Please can you tell me if the library uses the OPC UA protocol for reading and writing?

[@plcfocus.solution]

you can using KEPSERVEREX OPC Sir

[@jaroslavkromka5188]

Hi, is it possible to connect (ping) simulated PLC? I do not have physical device, but I want to try coding in this playlist.

[@plcfocus.solution]

Yes, you can. Please follow the next video or visit my website where the video is described.

[@fired_developer]

great!

[@plcfocus.solution]

oki sir

[@sonerarslan1110]

Hello, First of all, it was a really useful video. Thank you for the information. But I get an error like this in a similar program I made. (system.exception: 'the size of the class is less than 1 byte and therefore cannot be read') There are exactly 21 bools in the class I created. Frankly, I could not find much content regarding this problem. I would be glad if you could help me. Thank you.

[@plcfocus.solution]

please try to add 1 spare tag as integer at the last of that DB, don's put all only bool type. need to have byte or integer or real tag type in that DB.

[@sonerarslan1110]

@@plcfocus.solution Hello, I wrote 30 lines mixed with bytes and ints, but it still says that the minimum readable class must be 1 byte. example public static byte _op1 {get; set;} public static short _op2 {get; set;} thank you for your response.

[@yusufyaldz231]

var PLC_DB = 2; plc.ReadClass(TagList, PLC_DB); I'm getting this info error. I want to show you the error I got. System.Exception: 'The size of the class is less than 1 byte and therefore cannot be read' I need a solution, can you help me? (I AM USING S71500 PLC)

[@plcfocus.solution]

please show me the DB in plc and the class "tagList" Sir (in picture) via whatsapp or gmail

[@yusufyaldz231]

@@plcfocus.solution i have solved this error i will write a comment on how I solved this error in my free time thank you for everything a great educational video.

[@sonerarslan1110]

Merhaba sorunu çözebildin mi?

[@sare61]

that tutotrial is posible with plcsim without plc real?

[@plcfocus.solution]

yes, please watch next lession

[@eng_nasurhasan7619]

Please what type of plc you use?

[@plcfocus.solution]

S71200 CPU1212C AC DC RLY