connecting c# with TwinCAT

[Nielske 0]

Hello i´m a beginner and for my thesis i need to connect a C# program with Twincat 3. i made a simple program to test it but i got always the same error like you will see in the attached picture. I based my program on the example you find via this link: My link Anybody an idea how i can solve this problem. Thanks in advance. Edited 9 Apr 2014 by Nielske

[Joan M 3]

Hi Nielske, Take a look at this links: Information about connecting TC3 to different high level languages: http://infosys.beckhoff.com/content/1033/tc3_connectivity_overview/html/overview_intro.htm?id=13485 How to link the ADS library to your C# program: http://infosys.beckhoff.com/content/1033/tc3_adssamples_net/html/twincat.ads.setuptc3.htm?id=14149 And a nice list of sample code: http://infosys.beckhoff.com/content/1033/tc3_adssamples_net/html/tcsample_net_intro.htm?id=14153 I hope this will help you. I've still not done that with TC3... only with TC2 and it is a little different so... I'm afraid this is the best I can give you.

[Dacien 0]

You have not declared the variable hbool1 You must put it under: Private TcAdsClient AdsClient