Maybe you are new to Ethernet Networking or maybe you’ve been doing it for a while and you know how to get it to work but fumble most of the time before getting it right. Either way, this blog is intended to give a basic understanding of Ethernet networking. We won’t get into more advanced topics like VLANs and DMZ, and if you haven’t even heard those terms, that’s fine.
This is meant as a beginners guide. So let’s get to it.
Firstly, let’s talk about your address. No, I don’t me
Almost every week I support someone using Modbus communications in one form or another. And when I say one form or another, I truly mean that. Modbus is not a single protocol but a family of protocols. There’s Modbus ASCII, Modbus RTU, and Modbus TCP and maybe even more, but those are the ones I am most familiar with.
I cannot say that I am a guru on Modbus, but I can certainly attest to dozens, if not hundreds of hours setting up and using this protocol. Mostly I have used it in two fo