by James Powell | Apr 22, 2025 | How things work
Introduction We live in a multi-protocol world and will continue to do so for some time to come. Different protocols will work better in different applications. In this blog post we will first introduce Modbus and PROFIBUS protocols and talk about their key strengths...
by James Powell | Mar 28, 2025 | How things work
Cassette tapes, OS2, MicoVAX, and HART: all products of the 1980s, yet only one has survived the test of time. HART, or Highway Addressable Remote Transducer, is an industrial protocol that dates back to the mid-80s. Having been in the marketplace for so long, HART...
by James Powell | May 27, 2024 | How things work
Introduction Modbus RTU and TCP are, when compared to PROFINET, PROFIBUS and EtherNet/IP, slow protocols. Therefore, it is not suited for ‘real-time’ control in most cases. However, if the process is also very slow, then Modbus can be fast enough. If things change in...
by James Powell | May 21, 2024 | How things work
Introduction: Data logging is an offshoot of data monitoring. Often, the same data being monitored by the HMI is also sent to a Data historian for logging. This works great except for remote sites or when the data is very important. In these cases, you want to have a...
by James Powell | Mar 18, 2019 | How things work
Have you ever laid up at night wondering how EtherNet/IP prioritizes their messages or even if they ever did? Well maybe I was working too hard on writing my EtherNet/IP training course, or maybe I am a bit of a geek. Probably both. At this time, I was reading a...
