That makes more sense, thanks. I did in fact make a force table, set the DIG In's to TRUE and ticked to force. Then I selected FORCE ALL and the amber (orange) Force LED comes on the CPU, but still no LED on the DIG IN/DIG OUT cards. And remember that the DIG IN/ DIG OUT's are part of the CPU for the 314C-2 PN/DP. I have the DIG IN/DIG OUT card fed with the same L+ and M powering the CPU (Its all fed from a DIN terminal power rail that is supplied b y a simatic UPS).
Thanks again for all of the help.