Example

Copy Code
 if cLoginMode.ItemIndex > 0 then // if you want authentication (user or certificate)
  begin
    dOPCDAClient1.SetParam('ua-usermode', cLoginMode.ItemIndex.ToString);
    dOPCDAClient1.SetParam('ua-user', eUser.Text); // user name
    dOPCDAClient1.SetParam('ua-pass', ePass.Text); // user password
  end;