Programmable Logic Controllers (PLC) | Ladder Logic wwwboutcircuits››Vol. IV - Digital›Ladder LogicThe History of Programmable Logic ControllersLadder Logic and Programming PLCsAdvanced Plc FunctionalityRemote Monitoring and Control of PLCs Via Digital Computer NetworksIn the late 1960’s an American company named Bedford Associates released a computing device they called the MODICON. As an acronym, it meant Modular Digital Controller, and later became the name of a company division devoted to the design, manufacture, and sale of these special-purpose control computers. Other engineering firms developed their own versions of this device, and it eventually came to be known in non-proprietary terms as a PLC, or Programmable Logic Controller. The purpose of a P..See more on allaboutcircuits Ladder Logic Basics - Ladder Logic Word Learn Ladder Logic Basics including the 7 parts of a ladder diagram, must know binary and logic concepts and essential logic functions you can't do without.