The graphical programming realm Explaining the principal differences among the graphical PLC programming languages, Yerger started with Ladder Diagram, noting its development from relay logic. “It ...

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Here Stephen Hayes, managing director of automation and control technology specialist, Beckhoff UK, explains that by optimising traditional coding practices, businesses of all sizes can overcome this ...

IEC 61131 languages. A first step toward industrial programming standardization was the creation of IEC 61131 in the mid-1990s, with improvements made in subsequent revisions.

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 ...