Yes, you can use the computer to verify.
Since the IP address of your PLC is already 192.168.254.128 set the Standard port on the DSPSX to 192.168.254.129 and plug the two together.
Make the Expansion Port on the DSPSX IP address 192.168.253.129 and make your PC 192.168.253.130 and plug them together.
Now you will be able to view the webpages on 192.168.253.129 through your PC.
Yes I had figured that out from your help a few posts ago. I just got the info to come through on the page as well. I had to set the plc and the dsp to SRTP for them to talk to one another. Seems like everything is populating now. I'm sure i'll have some bugs to work out though now that I got that working. Thanks so much for you help. I still have to try and figure out that whole trigger situation as well.