Old habits die hard. But change is inevitable. And in this case, if proponents are right, change is on the way in the form of an open PLC programming standard known as IEC 61131-3. Promulgated by the ...

User-defined instructions (UDIs) let engineers write logic once and reuse it across many components, eliminating tedious copy-paste duplication. Any updates to a UDI definition automatically propagate ...

Recently I became interested in PLC programming. I'm not planning on working in this field on building a career, just want to play with a bit. I've some background in software development and ...

For many years in the industrial automation sector, end-user petitions for openness and flexibility had been at odds with what suppliers were willing to offer. Especially in the case of digital ...

The Allen-Bradley Micro850 and Micro870 programmable logic controller (PLC) systems use Class 1 implicit messaging capability for connectivity and design efficiency. Rockwell Automation expanded the ...