sjump Posted November 25, 2020 Report Share Posted November 25, 2020 I am having trouble connecting my PC to the PLC. I have tried both the ethernet and the USB port. Could some one help point me in the right direction on solving this issue? Link to comment Share on other sites More sharing options...
MVP 2023 Flex727 Posted November 25, 2020 MVP 2023 Report Share Posted November 25, 2020 Your information is a little sparse here for anyone to provide any useful help. Which PLC model? What happens when you try to connect with USB? Have you tried using a different cable? Have you tried reinstalling the driver? For Ethernet, what is the IP address of the computer and the IP address of the PLC? Are they on the same subnet? Are you using either a crossover cable or an Ethernet hub? Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted November 25, 2020 MVP 2023 Report Share Posted November 25, 2020 The first question when this happens is "Did you run the installation program as administrator?" If not, communication may be blocked. Let us know. Joe T. Link to comment Share on other sites More sharing options...
Tom Bowman Posted October 2 Report Share Posted October 2 I am having a similar issue as above. I am using TCP, there is a switch in the system and I can ping the ip address of the plc and the hmi. but when I try to make a Unilogic connection to the plc, after about 30 seconds it can not connect. The results on the unilogic screen says device does not respond to ping. But the computer dos window can ping. Any suggestions? Link to comment Share on other sites More sharing options...
pascal Posted October 3 Report Share Posted October 3 have you tried to connect your PC and your PLC to a "standard" switch, without management on the switch.... If you connect both with the switch of your IT department, maybe they block some ports on your network ? It's not because you can ping, you could talk to the PLC some ports have to be opened by your IT ? Link to comment Share on other sites More sharing options...
Tom Bowman Posted October 3 Report Share Posted October 3 Lat last night I was able to get connected. I had to do an upgrade to the offline file to the new version I have on my notebook, then connect and then it said I had to do a firmware upgrade on the PLC for the new version, did that, then was able to get connected. Thanks Link to comment Share on other sites More sharing options...
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