Ladder Logic
Ladder logic is basically a program that is represented by a graphical diagram, which is based on a circuit diagram of relay logic. This program contains two vertical lines called ‘rails’ and horizontal lines called ‘rungs’ which makes it look like a perfect ladder. The graphical representation of an ladder logic program is called as Ladder Logic diagram(LLD).
PLC Programming Ladder Logic
A PLC or Programmable Logic Controller is a special type of digital computer without a monitor and keyboard. This is basically used in industrial automation such as manufacturing, automotive, food and beverage, chemical processing, and more to automate systems. This tiny computer receives data through input and sends operating instructions as output.
As the name suggests, it’s a programable device. The main languages that are used to program a PLC are ‘Ladder Logic’ and ‘C’. Ladder Logic is the most used programming for PLCs.
Table of Content
- Ladder Logic
- Ladder Logic Structure
- Ladder Logic Components
- Description and Working
- Advantages an Disadvantages
- Applications
- Examples