Free PLC Training: Learn PLC Programming Online | PLC Academy

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This site is DEDICATED to the teaching of PLC programming. We offer free resources and training to teach yourself PLC programming.From PLC Basics like ladder logic, function block diagrams, structured text programming, and SCADA systems –we have it all.Our online resources are ideal for those looking to teach themselves PLC programming.And for those looking for more structured learning, we offer a curated list of online PLC Training Courses offered by the top PLC programming experts around the world.report this adLatest PLC Programming Articles TutorialsSortRead MoreBest PLC Programming Books: Top 10 PicksYou can learn a lot about PLC programming from books. Everything from ladder logic and structured text, to how to use specific PLC platforms like the Siemens S7-1200. In this collection below you will find all the best PLC programming books. Some of them are free to download as pdf and some are sold as books or e-books.The reason I made this collection is because there are many different PLC programming books out there. And not all of them are equally good. You don’t want to waste time or money on a book that is not good.Online you will find many different types of PLC programming books. Most of them are about PLC programming in general. You can for [...]Read MoreLadder Logic Tutorial – Part 2: Building LogicWelcome to the second part of my ladder logic tutorial. In part 1 of the ladder logic tutorial, I introduced you to the very basics of ladder logic and to some basic instructions.In this second part of the tutorial I will teach you how to solve actual problems with ladder logic and how to use it to build PLC programs. At the same time you will be introduced to several other ladder logic instructions:Set / Reset CoilsSet or Reset PrioritySet / Reset Function BlocksSR Function BlockRS Function BlockBuilding Logic with Ladder LogicLogic Gates with PLC InstructionsOR and AND GatesNOT Logic GateInterlocking with Ladder LogicLadder Logic [...]Read MoreCounters in PLC ProgrammingA PLC counter is a function block that counts up or down until it reaches a limit. When the limit is reached the output is set.The thing is that counting is in fact widely used in PLC programming. Often you will have the need to counts different things. An example of this could be to keep track of how many times a process has been completed. Or how many products has been produced.Read MoreSCADA System (Supervisory Control and Data Acquisition): What is SCADA?Have you ever wondered what a SCADA system really is? How does it work? And why is it called Supervisory Control and Data Acquisition?In this tutorial I will give you an introduction to SCADA systems and architecture, SCADA applications and programming. All the basics you need to know about SCADA systems.Read MoreTimers in PLC ProgrammingSome of the most essential functions in PLC programming are the timers. Time in PLC programs is used almost everywhere from delaying the start of a motor to prolonging a signal. PLC timers are used exactly for that. Although they at first can seem confusing it doesn’t take a lot to understand how they work and how to use them.Read MoreISA-88 (S88) Batch Control ExplainedWhen it comes to automation and manufacturing ISA-88 or just S88 is inevitable.It is a standard for published by The International Society of Automation (ISA) that sets out models and terminology addressing batch control. The standard was published in an attempt to standardize and thereby making it easier for automation suppliers to integrate, communicate and configure batches. It is adopted by Europe as IEC 61512-1.Today, the standard is used by most manufacturers and automation suppliers that deal with batch control. Especially productions of food and medicine utilizes if not the whole, then at least parts of the standard to keep track of their batch production.Read MoreRisk Assessment Example with ISO 12100Do you struggle with risk assessment? Safety in machinery is a very important, but often under taught area full of complicated terms from the ISO 12100 standard. This article will take you through a risk assessment example by using procedures and methods from ISO 12100 and the old ISO 14121-2.Risk assessment is a way of finding risks and hazards in your machine design. All machine designers have to make sure their machines are safe for humans to operate. Eventually, it is our responsibility to find all the risks and then eliminate those risks.Read MoreGuide to Safety Relays and Safety CircuitsSafety relays are a special type of relay you can use to build a safety circuit. Safety is a critical issue in machine design. It is crucial to have a good basic understanding of the principles behind safety relays and safety circuits.With that said, safety often becomes a confusing matter because a lot of terminology is attached to it. All that terminology comes from the standards describing safety circuits, functional safety and thereby safety relays.Read MoreAll About PLC Analog Input and Output Signals and ProgrammingDo you know how to scale your analog input? Or wire your analog output?Many people struggle with analog signals in PLC programming. The wiring and how to use an analog input or output in your PLC program can be tricky. Most often you will see digital example PLC programs and in my Structured Text Tutorial most of the examples are digital programs.I’m writing this article because many of you wanted to learn how to use analog signals in PLC programming. Analog signals are used widely in PLC programs but also often used in a SCADA system. So how do you connect that 4-20mA analog transmitter to your PLC and use it in your PLC program? How do you scale an analog [...]Read MoreFunction Block Diagram (FBD) Programming TutorialOne of the official and widely used PLC programming languages is the Function Block Diagram (FBD). It is a simple and graphical way to program any functions together in a PLC program. Function Block Diagram is easy to learn and provides a lot of possibilities.Read MoreBest Online PLC Training Courses (Top 8 of 2020)Did you know that most universities don’t have PLC programming courses?To learn PLC programming you will have to either teach yourself through finding bits and pieces of various PLC programming resources online – or you can enter one of the online PLC Training Courses.Read MorePLC Ladder Logic Programming Tutorial (Basics)One of the best visual programming languages is a PLC programming language called ladder logic or ladder diagram (LD).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.The smart thing about ladder logic is that it looks very similar to electrical relay circuits. So if you already know a little bit about relay control and electrical circuits, you can learn ladder logic even faster.But that’s definitely not a requirement, and I myself didn’t understand relays when I first learned ladder logic.Read MoreArduino UNO Tutorial for BeginnersWelcome to the first chapter of my Arduino Tutorial for Beginners. In this chapter, you will learn the very basics of the Arduino platform so that you can start programming. I will teach you how to set up your computer and write your first program for the Arduino Uno board.Read MoreSiemens LOGO Starter Kit – PLC Programming for BeginnersNew to PLC programming? Here’s the starter kit that will teach you the basic fundementals of PLC programming.With its small size, user friendly software and low price the Siemens LOGO Starter Kit is absolutely perfect for beginners.Read MoreRSLogix Micro Starter Lite with RSLogix Emulate 500You can build ladder logic PLC programs and simulate them for free. This guide will show you how to download and install the popular RSLogix Micro Starter Lite and how to use the RSLogix Emulate 500 to simulate your ladder logic PLC programs.Read MoreStructured Text Tutorial to Expand Your PLC Programming SkillsDo you also struggle reading your own and other huge ladder diagrams?The truth is, that even though ladder logic is an easy programming language for beginners, it can be very hard to read and understand. That’s why some consider Structured Text to be a better PLC programming language – and you can learn all about it in this tutorial.Read MoreLearn PLC Programming With The Siemens S7-1200 Starter KitYou probably have heard about the Siemens S7-1200 PLC. It is the latest Siemens PLC and the best for learning. Get the Starter Kit with the programming software SIMATIC S7 TIA Portal and begin learning Siemens PLC programming. You can even control the S7-1200 PLC with your smartphone!Read MoreWhy You Should Use Normally Closed For Stop ButtonsYou may know the difference between normally open and normally closed contacts, but do you know where to use them? This article will teach you where to use normally open and where to use normally closed for inputs and in your PLC program. You will learn how to connect your PLC program with the physical PLC inputs.Read MoreLadder Logic Symbols – All PLC Ladder Diagram SymbolsLadder logic symbols are the basic building blocks for ladder diagrams. Right here you will find all the ladder diagram symbols which are described in IEC 61131-3. The symbols are available for download in all formats and in a PDF-file.Read MoreLadder Logic Examples and PLC Programming ExamplesI will start this article by making a confession:When I develop a PLC program, I steal other people’s ladder logic.I am stealing ladder logic examples for inspiration and solutions to my PLC programs.From time to time you will be facing the same problem, when you do PLC programmingwith ladder logic. By looking at examples of ladder logic programs, you will be able to find a solution to your problem very fast. You may even find a smarter solution in the ladder logic examples than your own solution.Read MorePLC Logic – The Logic Behind The PLC ProgramThis is anintroduction to PLC logic. You can usePLC logic tobuild PLC programs with simple electrical circuit diagrams. In this article,I will usecombinatorial logic to build the functionality of a PLCprogram.Andto get as close as possible to real a PLC programming language like ladder logic,thePLC logic in this article will becontacts and relays in an electrical circuit.Read MoreSiemens S7-200 – Getting Started with Siemens S7 PLC’sThe Siemens S7-200 PLC is a very popular choice when you start PLC programming. It is the cheapest PLC from Siemens, and it is very easy to begin programming. The Siemens S7-200 has a limited variety of functions, but it certainly also has a lot of advantages. With this article, you will be ready to start configuring and programming the Siemens S7-200 PLC.Read MoreThermocouple Types For Measuring Different Temperature RangesThermocouples are fast temperature sensors with a wide temperature range. You can get all different thermocouple types, and you have to choose the type of thermocouple suitable for your project. The thermocouple types have different temperature ranges and tolerances.Read MoreHow To Make An Ethernet Cable (Crossover Straight-through Method)This is my guide on how to make an Ethernet cable. Often justreferredto as a network cable or patch cable. Making your own Ethernet cables will not only cut downthe price of your cables. You can also make the Ethernet cables in theexactlengthand with the exact wiring you need. Use this guideif you are making Ethernet cables forpersonal or professional use.Read MoreProfibus Cable, Connector And Termination TipsProfibusorProcess Field Busis a standard within field bus communicationsin the automation industry. A network for industrial computers made to withstand high amounts of noise. The two wire Profibus cable makes different network topologies possible, like the star, the tree and the line or a combination.Read MorePLC Hardware Components ExplainedThe basic architecture of a PLC is important to understand. It is crucial to know about the basic PLC hardware components that are inside PLC, because it will make your understanding of the PLCmuch easier. The hardware components are the physical building blocks of the PLC.Read MoreScan time of the PLC programNow, that we know what hardware is inside the PLC, the next step will be to take a look at the software inside the PLC and how it runs. Every PLC has a scan time and a scan cycle. This is how the PLC and the software inside the PLC works. The scan cycle is the cycle of which the PLC gathers the inputs, runs your PLC program and then updates the outputs. This will take some amount of time often measured in milliseconds or ms. The amount of time it takes for the PLC to make one scan cycle is called the scan time of the PLC.Read MoreCombinatorial Logic and the PLC ProgramBefore getting started with the PLC programming, let me illustrate some basic concepts about a PLC program.If you know about the PLC scan time, you can start to explore how the PLC program works. Combinatorial logic gives you the basic understanding of how combining the two states – true and false with logic. The basics of PLC programming is combining logic. That’s why combinatorial logic can be a great way into PLC programming. Since the fundamentals of combinatorial logic and PLC programming are the same.Follow UsBuy a PLC Training KitAB Micro820 Starter KitAB Micro1100 Starter KitSiemens S7 1200 Starter KitThe links above are affiliate links. If you buy something through one of these links, you won’t pay a penny more, but I’ll earn a small commission.This comes at no additional cost to you, and helps me keep the lights on. Thank you for your support!TrendingSortMost ViewsLadder Logic Examples and PLC Programming Examples363404Structured Text Tutorial to Expand Your PLC Programming Skills156461PLC Ladder Logic Programming Tutorial (Basics)147083Ladder Logic Symbols – All PLC Ladder Diagram Symbols77489All About PLC Analog Input and Output Signals and Programming72548Function Block Diagram (FBD) Programming Tutorial65797Best Online PLC Training Courses (Top 8 of 2020)51170Scan time of the PLC program38712Learn PLC Programming With The Siemens S7-1200 Starter Kit31693Profibus Cable, Connector And Termination Tips31389report this adWe are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Full disclaimer here.

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