Hello,

I have a problem using a PC-System in WinCC Unified V17, the problem is :

When I press a button in my supervision to modifiy a PLC variable, there is the code below in the Trace Viewer :

session: 0002, trace: CCScriptFW::CHmiTag::OnWriteCompleted Access to tag denied., err=0x80000005, vt=0x8

I don't understand what is the problem, could you help me ?