What is PLC Logic in Scan Cycles REALLY Doing?

What is PLC Logic in Scan Cycles REALLY Doing?

Discover the inner workings of PLC logic in scan cycles and unlock a deeper understanding of industrial automation. We delve into the world of Programmable Logic Controllers, exploring the intricacies of scan cycles and how they execute PLC logic. Learn how PLCs process inputs, execute programs, and update outputs in a continuous cycle, and gain … Read more

Most Asked PLC Ladder Logic Question and Why

Most Asked PLC Ladder Logic Question and Why

What is the most asked PLC Ladder Logic Question? One of the most common and foundational examples of ladder logic programming involves designing a motor start-stop circuit that utilizes latching or seal-in logic. This specific scenario not only serves as a practical exercise but also encapsulates several critical principles of Programmable Logic Controller (PLC) programming … Read more

Secret to ONE SHOT Edge Triggers in PLC Scan?

Secret to ONE SHOT Edge Triggers in PLC Scan?

Did you know that understanding edge triggers can drastically improve your PLC understanding? How one-shots work within the PLC scan is vital in programming PLCs. In this post, we’ll dive into the world of programmable logic controllers and explore the techniques and strategy secrets you need to know to trigger your edges precisely and accurately. … Read more

Box Dumper Easily Learn PLC Programming

Box Dumper Easily Learn PLC Programming

PLC programming is a valuable skill that can be learned without a significant financial investment. With the EasyPLC learning suite, you can gain hands-on experience with industrial simulation and connect it to PLCs. One such PLC option is the free simulator of the Do-More Designer, which provides a practical platform for learning. We will guide … Read more

Top 7 problems with beginners using ladder logic

Here are the top 7 problems and concepts beginners struggle with using ladder logic (Ladder Diagram). Ladder logic is a programming language used in PLCs, and it is based on the graphical representation of electrical relay logic circuits. Many beginners struggle with ladder logic because it requires a different mindset than traditional programming languages like … Read more

Productivity 2000 PLC Program Control

Productivity 2000 PLC Program Control

The program control method and instructions will allow us to specify what parts of the logic get solved and when this happens. This will control how the PLC will scan and solve your logic in your program using a synchronous PLC Scan. Understanding the PLC program scan post will explain synchronous and asynchronous program scanning. … Read more

How Ladder Logic Program Scan Works

How Ladder Logic Program Scan Works

PLC programs scan cyclically. This means that it is repeated many times and in the same order. The primary sequence of a PLC scan is reading the inputs, executing the program, diagnostics, and communication, and updating the outputs. We will look at these scan items with particular attention to how the ladder logic program is … Read more

Learn PLC Programming Free Now – Video

Learn PLC Programming Free Now

We can learn plc free by using the Do-More Designer simulator. This is free, fully functional programming and simulator software. The PLC simulator also allows communication through the Ethernet and Serial ports of the computer to help you learn about HMI and communication. This video series will take you through the simulator’s basics of installing, … Read more

Productivity 2000 PLC Ladder Logic Counter

Productivity 2000 PLC Ladder Logic Counter

Most programmable logic controller (PLC) programs will include a counter instruction. The Productivity 2000 Series PLC has two different counter instructions for your program. These can be used in several different ways to adapt to your application. Basically, counters are used to count up or down to a specific limit. When the limit is reached, … Read more

Timing Diagram NOT Just Used for a Timer

Logic circuits in a PLC ladder logic program are either on or off. The inputs change, which will affect the outputs. This can be expressed in a timing diagram. The timing diagram or chart will show you how the ladder logic program will respond to the changing states of the inputs and outputs. This visual … Read more