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IEC 61131-3

IEC 61131-3 is an international standard for programmable logic controllers (PLCs) that specifies the programming languages and development environments that can be used to program PLCs. The standard was developed by the International Electrotechnical Commission (IEC) and was first published in 1993. IEC 61131-3 defines five programming languages that can be used to program PLCs: Ladder Diagram (LD): This is a graphical language that is similar to the relay logic diagrams used in traditional control systems. It uses symbols to represent the various logic functions and control operations. Function Block Diagram (FBD): This is another graphical language that is based on block diagrams. It allows for the creation of reusable function blocks that can be easily interconnected to form complex control systems. Structured Text (ST): This is a high-level textual language that is similar to Pascal or C. It allows for more complex programming structures and mathematical calculations. Instruction List (IL): This is a low-level textual language that is similar to assembly language. It is typically used for very low-level control applications or for optimizing performance in high-speed control systems. Sequential Function Chart (SFC): This programming paradigm uses a graphical language to represent a system's behavior as a series of interconnected steps or stages. In addition to specifying the programming languages that can be used, IEC 61131-3 also defines a standard for the development environment, including the user interface, debugging tools, and documentation requirements. Overall, IEC 61131-3 provides a standardized approach to PLC programming, which makes it easier for PLC programmers to develop and maintain control systems across different manufacturers and applications. Youtube - / @SP_Tech_IN 1.IEC 61131-3    • IEC 61131-3   2.PLC Ladder Diagram    • PLC Ladder Diagram   3.Functional Block Diagram    • Functional Block Diagram   4.Sequential Function Chart    • Sequential Function Chart   5.Instruction List Deprecated    • Instruction List Deprecated   6.Structured Text    • Structured Text   7.Continuous Function Chart Non IEC    • Continuous Function Chart Non IEC   8.Combined Component Workbench CCW Installation    • Combined Component Workbench CCW Installation   9.CCW Overview    • CCW Overview   10.Automation Builder Installation    • Automation Builder Installation   11.Automation Builder Overview    • Automation Builder Overview   12.RSLogix 5000 Overview    • RSLogix 5000 Overview   13.WonderLogix Studio Installation    • WonderLogix Studio Installation   14.WonderLogix Studio Overview    • WonderLogix Studio Overview   15.Data Tags vs Memory Registers    • Data Tags vs Memory Registers   16.Data Scope    • Data Scope   17.Advanced Data Types    • Advanced Data Types   18.IO Addressing    • IO Addressing   19.Where Is My SCP CPT etc    • Where Is My SCP  CPT  etc   20.Program Structure    • Program Structure   21.Project Setup    • Project Setup   22.Project Layout    • Project Layout   23.Ladder Diagram Development 1    • Ladder Diagram Development 1   24.Ladder Diagram Development 2    • Ladder Diagram Development 2   25.Ladder Diagram Development 3    • Ladder Diagram Development 3   26.Ladder Diagram Emulation    • Ladder Diagram Emulation   27.Sequential Function Chart Instruction    • Sequential Function Chart Instruction   28.Sequential Function Chart Development 1    • Sequential Function Chart Development 1   29.Sequential Function Chart Development 2    • Sequential Function Chart Development 2   30.Sequential Function Chart Development 3    • Sequential Function Chart Development 3   31.Sequential Function Chart Emulation    • Sequential Function Chart Emulation