## How to understand ladder logic?

## What is ladder logic programming?

**Ladder****logic****programming**is a coding language used to create circuit representations to help people build devices and to give instructions to controllers. While this can be used to build many different circuits,**ladder****logic****programming**primarily is used to make programmable**logic**controllers (PLCs).

## What is a ladder logic program?

**Ladder****logic**is widely used to**program**PLCs , where sequential control of a process or manufacturing operation is required.**Ladder****logic**is useful for simple but critical control systems or for reworking old hardwired relay circuits.

## What is a PLC ladder?

**Ladder logic**is a programming language used for**PLC**(Programmable**Logic**Controller) programming. It is a graphical**PLC**programming language which uses**ladder**diagrams to express**logic**operations with symbolic notation, much like the rails and rungs of a typical relay**logic**circuit.

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