https://forge.codesys.com/forge/talk/CODESYS-V2/thread/fa4842dc8f/2020-02-27T20:14:55.301000ZRecent posts to Login-to-PLC problems2020-02-27T20:14:55.301000Z2020-02-27T20:14:55.301000Zshooterhttps://forge.codesys.com/u/shooter/https://forge.codesys.com40e3f994204915f62d4fa6a07905d9c84696856f

<div class="markdown_content"><p>sometimes resetting the computer is the solution, It is caused by windows 7 doing strange things with ports etc.</p></div>

2020-02-27T20:14:53.804000Z2020-02-27T20:14:53.804000Zdannoskahttps://forge.codesys.com/u/dannoska/https://forge.codesys.com24f3599ba819faec8ee3a160597f1a7aa93224d7

<div class="markdown_content"><p>Hallo, sometimes a problem with LAN (TCP/IP) login to PLC (from CoDeSys) occurs. CoDeSys selects one project/instalaltion, which it "refuses to connect to".... <br/> When I choose the On-Line/login function, CoDeSys does not log to the PLC, or - to be exact - does not display the on-line values. Neverthelles, the CoDeSys gateway server shows to be "active", as well as the blue icon of the Connection shows active connection the CODeSys itself remains off-line (and few dozens of seconds later it annouces Connection failure - Disconnected) - I mean in the "program editing" look, not displaying the values. Also in the CoDeSys Menu the option On-line remains "selectable"...<br/> To exclude problems in my connection, firewall.... I tried to open another (you can say any other) project and to "go on-line" - no problem. <br/> Sometimes it helps to wait few hours (withoout any action "on site", or settings change on my notebook) or to restart the PLC (if I do not time to wait...) and the conenction runs smoothly.<br/> Does anybody know, what (and how) is to be reset/deleted to enable the connection in such case?<br/> (Have CoDeSys 2.3.9.46 running on Win 7/64 bit Professional...)<br/> Thanks<br/> Daniel</p></div>