Plc Programming Ladder Logic

The most commonly used plc programming language is the ladder logic diagram.

Plc programming ladder logic.

The reason for its popularity is that relay logic diagrams were closely resembled by the ladder logic diagrams. Ladder logic is a visual programming language used to program plc s programmable logic controllers. Ladder logic plc programming. As programmable logic controllers became more sophisticated it has also been used in very complex automation systems.

You can reuse chunks of a plc program in your own plc program. Ladder logic plc programming. In fact reusable code is widely used and many automation projects are build on the isa 88 or s88 batch control standard which encourages reusable function blocks. The below figure shows the hardwired ladder diagram wherein the same.

Before going to program the plc with this language one should know some basic information about it. In this case the plc programming language ladder logic. The great thing about ladder logic is that it s much more visual than most programming languages so people often find it a lot easier to learn. Part 1 of 2 more videos are available.

When the plc was invented designers found a way to use the existing knowledge of the relay control system designers for programming the plc. Introduction to plc ladder logic programming. 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. Among several programming languages ladder logic diagram is the most basic and simplest form of programming the plc.