This unit is a older PLC. Most of the C200HS processors had serial ports built in, not yours. The port shown in the photo is for a PRO27 hand held, or you can use a CQM1-CIF02 to connect the PLC to your PC. You could also install a rack mounted communication module, C200H LK201-V1. This information is found in manual W236-E1-6, starting on page 61
Hope this helps