Electrical Circuit Foundation
Line (Ladder) Diagrams are what we use to troubleshoot/verify electrical wiring and components. These diagrams are read from left-to-right and top-to-bottom. This diagram has a series of single lines that indicate the logic of the control circuit and how devices are connected to each other. Vertical lines are the supply power and horizontal lines (rungs) are the control circuits (hint the name “ladder”). These diagrams can be simple or complex, depending on the desired result for the process.