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 | May 6, 2024 | General
Introduction: Welcome to the first of four postings in May about Modbus. Yes, it will be marvelous. This one will be about why we still use Modbus. The next three will focus on three key applications of Modbus in industrial automation: Monitoring, Datalogging, and...
by James Powell | Apr 29, 2024 | Troubleshooting
Have you ever wondered what would happen if you took the cable at the end of a PROFIBUS network and connected it back to the beginning of the network? Well, I have. Being involved with Troubleshooting, I have thought of all the different ways you could mess up a...
