Hello,

           We have a Schneider SLG-50 with Sinumeric 840D controls and we are getting two error boxes the first is labeled frmLogo.Timer1.Timer with the following message Error: MDIForm1 DDE: remote station refused to perform operation, Error number: 1033 and the second box is labeled SLG withe the following message We will end the application. -MDIForm_Resize-No resest- Signal or NCDDE-server not available. We have swapped the NCU card and power module with a set out of a working machine and have changed the upgraded solid state hard drive back to the original hard drive to rule out any issues during the creation of the new hard drive. Neither of the these changes have made a difference in these errors. Also with these errors the information boxes on the upper control panel/ HMI are cut in half on the screen.

Thank you for your help.