Basic Ladder Logic For Beginners скачать в хорошем качестве

Basic Ladder Logic For Beginners

Ladder logic is used to develop software for programmable logic controllers (PLCs) used in industrial control applications. The name is based on the observation that programs in this language resemble ladders, with two vertical rails and a series of horizontal rungs between them. Horizontal lines in a ladder diagram are called “rungs,” each one representing a unique parallel circuit branch between the poles of the power supply. Typically, wires in control systems are marked with numbers and/or letters for identification. Ladder logic still dominates PLC programming - Drives and Controls Magazine. Ladder logic continues to be the dominant language for programming PLCs, accounting for more than 81% of the global market, despite the availability of several other languages defined in the IEC 61131-3 standard. Ladder diagrams, or Relay Ladder Logic (RLL), are the primary programming language for programmable logic controllers (PLCs). ... The ladder diagram uses contacts to represent the switches, or any input, and the coil symbol to represent an output. A line showing an input or several inputs and an output is known as a rung.