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 ...

When a PLC is used primarily to replace relays, timers, and counters, it's hard to beat the simplicity and usefulness of ladder diagram programming. Their ability to accept programming in ladder ...

UML is used as a representation of the Java programming language. Using sample class and sequence diagrams, you can see how UML conveys unambiguous code-mapping information to developers.