Comparison of C Language and ST Language in Xinjie PLC C Language ST Language Addition + + Subtraction – – Multiplication * * Division / / Assignment = := Logical AND && AND Logical OR || OR Logical NOT ！ NOT Comparison – Greater Than > > Comparison – Less Than < < Comparison – … Read more
Application Case of Enumerated Variables · An enumeration is a user-defined data type that allows users to define meaningful names for a set of integer values, making the program more readable and maintainable. · Enumeration variables can only take one of the identifiers defined in the enumeration, which helps to limit the range of values … Read more
Click the blue text PLC Automation Hub Follow us Master ST language to make your PLC programming more efficient and intuitive What is ST Language? ST (Structured Text) is a high-level PLC programming language that resembles Pascal or C language, adopting a structured programming approach. Compared to Ladder Diagram, ST language is more convenient and … Read more
Why do I need to write another book titled “Practical Guide to ST Structured Text Language PLC Programming” as I discussed earlier? After mentioning this idea, it is quite a challenge for me personally. Once completed, I hope it can truly help the engineers who are working hard in the field of PLC programming! Therefore, … Read more
Why Choose ST for Writing FB? Clear Logic and Easy Maintenance The ST language expresses logic in text form, making it suitable for describing complex control processes. With a reasonable code structure and comments, developers can easily understand and maintain the code. Modular Programming FB itself is a modular programming unit, and ST allows developers … Read more
‖ System Learning Life is like a marathon; sometimes you need to pause and fish a bit to go further. The project team received a requirement to determine the deviation range of the servo and handle alarms. One expert completed it using a few loops, finding it too simple. So, he wrote a pure if-statement … Read more
Click the blue text PLC Automation Exchange Follow us Precise control, efficient motion – creating an intelligent servo control system In the field of industrial automation, servo motor control is one of the core technologies. Today, we will delve into how to use the Mitsubishi FX5U PLC to write a complete pulse axis control program … Read more
Click the blue text PLC Automation Exchange Follow us 1. Overview of Application ScenariosIn industrial automation projects, it is often necessary to achieve data communication between different devices. The Omron NX102-1200 PLC acts as a master station, reading floating point data from slave devices (such as sensors, instruments, other PLCs, etc.) via the MODBUS TCP … Read more
In ST language, operators are the smallest functional units for constructing program logic, just as letters are to an article. Their correct usage directly determines: the accuracy of control logic the reliability of device behavior the convenience of code maintenance Mastering the characteristics of operators is a core competency requirement for PLC programmers. This issue … Read more
Creating ST Programming Language Projects in Siemens and Mitsubishi PLCs In Siemens PLCs, the structured language is referred to as SCL, which is the ST language. In the current TIA Portal programming software, programs and data are presented in the form of “blocks”. The data block (DB) is equivalent to data registers in other PLCs. … Read more
