The additions of extended and function block instructions to the basic instructions representing relays, timers, and counters, however, have helped ladder diagram programming to remain a flexible and ...

The demise of Instruction List? One thing that hasn’t changed recently with PLC programming languages is that there are still two basic types: textual programming using typed out commands and ...

For PLC programming, U.S control engineers and technicians turn typically to ladder logic, a programming technique that’s been around since the birth of programmable logic controllers, or PLCs, in the ...