A ten-year old white paper entitled “A Guide to Troubleshooting PROFIBUS PA Networks” is the most downloaded document from www.us.profinet.com. The guide is so old it still says PTO instead of PI North America. In the guide, author James Powell promotes a systematic approach that makes network set-up and trouble-shooting easy. You can download the guide here.
James is also the author of Catching the Process Fieldbus: An Introduction to Profibus for Process Automation. The newest edition of the book can be downloaded at no cost here.