OPC DA is one of the most widely used industrial communication technologies for exchanging real-time data between PLCs, SCADA systems, HMIs, historians, and other automation software. Although newer technologies such as OPC UA are becoming …
PROFINET has quietly powered millions of industrial Ethernet nodes for over two decades, and it just received its most significant overhaul yet. PI (PROFIBUS & PROFINET International) has released PROFINET Version 2.5, and this isn’t …
Every few months, someone asks me the same question in a different shape: “Which industrial protocol is the most secure: Modbus, BACnet, MQTT, or OPC UA?” The honest answer is that this is the wrong …
Every controls engineer has sat through a meeting where someone from corporate says, “We need to be more Industry 4.0,” without defining what that actually means for the panel they’re wiring or the PLC program …
If you’ve spent any time around modern PLCs, SCADA systems, or MES platforms, you’ve probably run into the term OPC UA. It gets mentioned constantly in the same breath as Industry 4.0, IIoT, and digital …
If you’ve spent any time around plant floors, control rooms, or automation vendor pitches in the last few years, you’ve heard the term “IIoT” thrown around, usually next to buzzwords like “digital transformation” and “smart …
If you’ve spent any time around a control panel, you’ve run into Modbus. It’s the protocol that refuses to die, invented in 1979 for PLCs, and still running half the industrial world today. But when …
Modbus TCP runs somewhere in almost every industrial facility you’ll ever walk into. PLCs, HMIs, RTUs, VFDs, and building management systems all lean on it because it’s simple, well-documented, and universally supported. But that same …
For decades, industrial automation has run on a patchwork of incompatible protocols. A plant floor might mix PROFINET on one line, EtherNet/IP on another, and Modbus TCP holding together a handful of legacy devices with …
If you walk into any industrial facility today, like a manufacturing plant, a water treatment station, or a commercial building’s mechanical room, you’ll find devices talking to each other over at least one of four …