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 ...

Debugging and analysis of PLC programs can be time-consuming processes. Until now, equipment developers usually have had to check their PLC's programs by using a sampling trace function or, if they ...