After clicking on the “ Start Simulation,” you have to click on the “ Debug instance” button in the bottom left panel and the simulation will be started. You can click on the PLC log tab for more details about the error. If your ladder logic has any error, it will be displayed in the red color in the console tab. When you hover your cursor, you will see the names of all tools on the toolbar. When you are done, click on the “ Start PLC Simulation” button on the toolbar. Follow the above step to add input contact variables, output coils, blocks (for the timer, counter, etc.), comments, etc.Right-click in the middle space, then click on “ Add” and select power rail.You can also set the initial value of all the selected variables. Click on the “ Plus” icon in the middle panel. To create a ladder diagram, first, you have to define all the variables and their types like boolean, integers, real, arrays, byte, word, etc.All the programming functions like on/off buttons, timers, counters, functional blocks, numerical operators, comparative operators, etc., are available on the right panel of the software. Do note that you have to create a new empty folder on your PC every time you create a new project. To start a new project, click on “ File > New.” Then write the name of your project and select the programming language and click “ OK“. It offers you to write a program in any of the 5 PLC programming languages. It will take some time to open depending on the processor of your computer. After extracting the zip file, open the respective folder and click on the “ OpenPLC Editor” shortcut file to launch the software. It is a portable software, which means you need not install it on your PC. OpenPLCEditor is a freeware that is loaded with lots of features. We have the following software on this list: The best part of these software is that you do not require any external PLC hardware to run the simulation. You can download these software on your Windows PC and practice by creating different logic diagrams. If you are an engineering student and pursuing a course in PLC, this article will be beneficial for you because here, you will find the best free PLC simulation software to run on your PC. The first three are the graphical languages and the last two are the text languages. It uses the following programming languages: All the manufacturing industries, like the textile industry, food manufacturing plants, chemical industry, oil and gas sector, etc., use PLC to automate the production process. It is a digital computer used to control industrial machines. PLC stands for Programmable Logic Controller.
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