Jack Steele Posted December 16, 2011 Report Share Posted December 16, 2011 I have an M91-2-T1 that is not communicating with my PC. It told me that the Operating System in the control was out of date and then I was able to upgrade the software. It put the PLC into Bootstrap mode, upgraded it and then told me that communications had been established but after that I will get the standard error message about restarting the PC, M90 Program or control. How can I link with it to upgrade the operating system but NOT be able to upload the program that is running in it so that I can modify it? It says that it is unable to open Port 1. I am running XP, do I need a driver so that I can communicate with this PLC? Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.