by James Powell | Feb 21, 2024 | Troubleshooting
Introduction: When PROFINET was first released, almost all the nodes communicated at 100 Mbps. You had the odd device that communicated at 10 Mbps, but that was non-PROFINET and was not a big deal. In the last few years, things have changed. We now have 1,000 Mbps...
by James Powell | Jun 15, 2023 | Troubleshooting
Looking at the PROFIBUS DP waveforms and signal levels are key to determining if there is a problem and identifying that problem. In the last update of both our PROFIBUS Troubleshooting and Maintenance course and our Certified PROFIBUS Network Engineering course, JCOM...
by James Powell | Mar 9, 2023 | Troubleshooting
There has been a lot of talk about ChatGPT. My colleague Cambel Lai has been playing with it, and it is certainly impressive technology. However, as others have noted, it should be used cautiously. This is especially true when applied to industrial communications. We...
by James Powell | Jun 25, 2021 | Troubleshooting
Chapter 1 Introduction to Diagnostics in Operational Technology Operational Technology (OT) deals with all the technology used to control a factory or process plant. In the last 30 years, it has seen three significant changes. The first was the introduction of...
by James Powell | Jun 27, 2020 | Troubleshooting
My PROFIBUS troubleshooting tool of choice is ProfiTrace by PROCENTEC – an excellent tool. In my toolbox, I also have a cable tester called the HP-25 by HI-PORT CONTROLS in the UK. If I am working on a new segment, I will take it out and use it. However, up until now,...
by James Powell | Jan 12, 2020 | Troubleshooting
Life as a maintenance person can be very difficult at times. They are presented with mysteries on a daily bases. One of my favorites is when there is a temporary PROFIBUS issue – you are called down to the machine but by the time you get there, everything is working...
