Best PLC Programming Software for Freelancers

The OpenPLC Editor is a completely free and open-source tool that adheres to the IEC 61131-3 standard for PLC editing. This software allows users to upload PLC code directly to any compatible board or system utilizing OpenPLC Runtime. OpenPLC represents a revolutionary shift in programmable logic controllers, offering an intuitive software interface that is fully open-source for both software and hardware aspects. The project was developed in line with the IEC 61131-3 standard, which outlines essential software architecture and programming languages for PLCs. It finds its primary applications in various fields, including industrial automation, home automation, IoT implementations, and SCADA research. The Runtime component is versatile, capable of operating on everything from minimal microcontrollers, such as Arduino, to powerful cloud servers. It plays a crucial role in executing the PLC programs that users develop through the Editor. Thus, the OpenPLC Editor serves as the primary interface for users to design and implement their PLC applications effectively.

VTScada is a user-friendly platform that allows you to create highly customized industrial monitoring and control applications that end-users can trust and use with ease. VTScada is used by many industries worldwide for mission-critical applications. The Human Machine Interface Software allows industrial users to monitor and control their equipment via a computer. This software can be used to control pumps and motors, or display fluid levels and temperatures on a monitor. HMI software (such VTScada) is used to control remote hardware and retrieve process information. Municipal utilities, for example, can use radios to centrally monitor the distribution of water and wastewater collection sites distributed over a large geographical area or an Ethernet network.

ISPSoft is a cutting-edge program development tool designed for Delta's programmable logic controllers (PLC), adhering to the IEC 61131-3 standard to facilitate the integration of various tasks in project management. Users are empowered to utilize both standard PLCopen® function blocks and Delta's proprietary function blocks, enabling them to meet diverse control needs effortlessly. The platform presents a user-friendly and effective development environment, making it suitable for projects ranging from simple to highly complex control systems. It allows for the introduction of symbols in both call-by-value and call-by-reference formats, which can be managed and stored independently. In addition, multiple monitoring tables can be housed within a single project, enhancing data organization. Users have the flexibility to design custom instructions tailored for specific applications across different industries. Additionally, ISPSoft supports a variety of interrupt types, including cyclic, I/O, timer, and external interrupts, thus offering robust options for task management. It ensures that the software provides applicable tasks tailored to various CPU configurations, while also boasting high-speed data logging capabilities, with intervals as short as a single CPU scan, greatly enhancing operational efficiency. This comprehensive tool ultimately streamlines the process of developing and managing control systems effectively.

The Studio 5000® platform merges various design components into a unified framework that enhances efficiency and shortens commissioning time. This user-friendly integrated design platform emphasizes swift design processes, the ability to reuse elements, teamwork, and virtual design capabilities. The revamped interface ensures a consistent and contemporary user experience across all Studio 5000 applications, making it easier for users to navigate. Studio 5000 Logix Designer® offers a straightforward programming environment that fosters collaboration among users in the design and maintenance of their systems. Through Studio 5000 Architect®, users can quickly initiate the development of their control and visualization applications. Additionally, the Studio 5000 Simulation Interface links both physical and simulated controllers to modeling and simulation tools, streamlining the process of virtual commissioning and facilitating model-based design. By integrating these features, Studio 5000 significantly advances the efficiency of automation projects.

ABB Automation Builder serves as a comprehensive software suite designed for machine builders and system integrators aiming to efficiently automate their systems and machines. By integrating essential tools for configuration, programming, debugging, and project maintenance, Automation Builder significantly reduces the primary cost factor in industrial automation projects: the time spent on software-related tasks. This software supports the engineering of AC500 PLCs, AC500 safety PLCs, CP600 control panels, as well as drives and motion control systems. Its user-friendly setup simplifies installation configuration and also manages software license registration, maintenance, and updates. With options ranging from a basic (free) edition to standard and premium versions, Automation Builder caters to both small-scale projects and the complexities faced by OEMs and system integrators managing larger endeavors. Users can quickly access Automation Builder with a built-in 30-day trial license, allowing them to evaluate its features and capabilities before committing to a purchase. This flexibility ensures that companies can find a version that best suits their specific automation needs and project requirements.

Eaton's easySoft software facilitates the programming of easy controllers and displays, offering users the ability to input and edit circuit diagrams in their preferred format. The tool includes an integrated offline simulation feature, enabling users to validate circuit designs before they go live. It is designed to assist with the configuration, programming, and parameter definition for all intelligent relays, as well as the creation of visualization functionalities for MFD displays. Users can effortlessly transfer existing programs from earlier series (easy500/700/800) to the easyE4 PLC, with easySoft 7 automatically converting visualizations. Eaton aims to boost your product expertise, enhance troubleshooting abilities, and ensure the safe operation of machinery control solutions. Catering to various skill levels, Eaton provides self-directed learning opportunities, eLearning courses, and instructor-led training programs tailored to individual needs, ensuring that both novices and seasoned professionals find valuable resources. This comprehensive approach not only promotes skill development but also fosters a deeper understanding of the technology involved.

The SIMATIC STEP 7 within the TIA Portal serves as a complete engineering solution for setting up and programming SIMATIC controllers, applicable to both PLC and PC systems. With SIMATIC STEP 7 Professional (TIA Portal), users can manage the configuration, programming, testing, and troubleshooting of all versions of SIMATIC controllers effectively. On the other hand, SIMATIC STEP 7 Basic (TIA Portal) offers a cost-effective alternative to the Professional version, specifically designed for engineering the SIMATIC S7-1200 Basic Controllers and configuring SIMATIC HMI Basic Panels, as it includes WinCC Basic in its features. In the face of modern automation challenges, solutions must leverage powerful software that is efficient, adaptable, and dependable both now and for future needs. Selecting the appropriate license tailored to your specific requirements ensures that your software remains up to date in a cost-effective manner, enabling seamless integration and operation in various applications. As technology progresses, ensuring your tools evolve in tandem can significantly enhance operational productivity.

EcoStruxure Machine Expert, previously known as SoMachine, enhances engineering efficiency through user-friendly machine programming, featuring one of the most advanced and effective software tools available today. This innovative software solution facilitates the development, configuration, and commissioning of an entire machine within a unified environment, encompassing various aspects such as logic programming, motion control, robotics and mechatronics, simulation, diagnostics, as well as intelligent motor and load management, drives, and HMI (Vijeo Designer), alongside IIoT and network automation functions. By utilizing predefined templates, users can significantly reduce engineering time by leveraging comprehensive libraries or even introducing a new machine module. This all-in-one software is designed to meet the demands of both simple and high-performance machines alike, making it versatile for various applications. Additionally, the newly introduced Machine Expert Installer streamlines the software installation process, allowing it to be easily set up via the web, local folders, or physical media. This approach not only simplifies deployment but also ensures that users have immediate access to the latest features and updates.

Introducing Twido Suite, the pioneering programming software structured around the specific development tasks of your project, offering a navigation experience that quickly becomes instinctive! Experience a genuinely contemporary interface that is both straightforward and user-friendly, enhancing implementation speed and efficiency. With a strong focus on ergonomics, Twido Suite has been crafted to streamline all your operations, significantly cutting down on development time. Tailored for your diverse applications that range from 10 to 100 I/Os, it also facilitates the seamless upgrading of your automation systems while ensuring adaptability for future needs. It’s the ideal solution for developers seeking both simplicity and functionality in their projects.

EcoStruxure Control Expert serves as the unified software for programming, debugging, and operating various Modicon models including M340, M580, M580S, Premium, Momentum, and Quantum ranges. It enhances the development of applications by utilizing standardized objects and libraries, providing program units, and enabling seamless integration of field devices alongside robust debugging and simulation capabilities. Notably, EcoStruxure Control Expert facilitates the maintenance and updating of installations without requiring process interruptions (CCOTF), ensuring operational continuity. Additionally, with the Modicon M580 web server, users can perform diagnostics conveniently from any tablet or smartphone, enhancing accessibility. The software also features integrated conversion tools and the Unity M580 Application Converter (UMAC), which ensure a smooth transition and continuity when migrating from older PLC systems to the latest PAC technologies. This makes EcoStruxure Control Expert an essential tool for modern automation solutions.

The Totally Integrated Automation Portal (TIA Portal) offers comprehensive access to a wide array of digital automation services, encompassing everything from digital design to cohesive engineering and clear operational visibility. By utilizing simulation tools, you can significantly reduce your time to market, enhance plant productivity through advanced diagnostics and energy management features, and improve flexibility with connections to higher management levels. TIA Portal combines innovative simulation capabilities, integrated engineering processes, and transparent operation to deliver enhanced flexibility, speed, and productivity. This suite of new features is advantageous not only for system integrators and machine builders but also for plant operators, positioning TIA Portal as an ideal entry point into automation within the Digital Enterprise. Additionally, the digital workflow allows for the creation of a virtual model of machines and plants, enabling thorough simulation and testing of all components prior to actual construction. This preemptive approach ensures that potential issues can be identified and resolved early in the process.

The LADDER EDITOR for Windows® offers a range of user-friendly features that leverage the unique aspects of the Windows® operating system, including icons, a menu bar, and intuitive mouse control. Users can easily execute common operations like cut, copy, paste, and save in a manner familiar to those who have used other Windows® applications. Additionally, commands can be executed and ladder symbols inputted conveniently with a mouse, enhancing the overall user experience. These features collectively empower users to program with greater efficiency and ease. Ultimately, the LADDER EDITOR streamlines the programming process, making it accessible for both novice and experienced users alike.

The CODESYS OPC UA Server offers a flexible solution for runtime environments that efficiently utilizes the controller's resources. This component is independent of the platform and seamlessly integrates with existing runtime systems. Aimed at OEM clients, it allows for the incorporation of custom OEM objects through its built-in provider interface. It boasts a variety of features such as automatic input suggestions, syntax error detection, debugging capabilities, and simulation tools to facilitate efficient development processes. The compiler generates optimized and robust machine code specifically for HXCPU. Additionally, project trees provide a unified approach to managing devices, tasks, and application programs, enhancing overall organization and productivity in development workflows. This comprehensive toolset ensures that developers can maximize their efficiency while working on complex projects.

Pro-H is a versatile 32-bit programming tool designed for use with all Hitachi H-Series PLCs. Its flexible selection of editors significantly reduces the time needed for programming, making it more efficient. The software includes additional specialized instructions tailored for H-Series PLCs, ensuring comprehensive functionality. Furthermore, it adheres to the standards set by IEC 61131-3, promoting compatibility and reliability in programming. This combination of features makes Pro-H an essential resource for engineers working with Hitachi PLC systems.

SILworX provides an intuitive user interface for programming and configuring HIMA's safety-related controllers while also facilitating error diagnostics. This streamlined process minimizes user mistakes and accelerates engineering, allowing for quicker commissioning of your safety system and immediate adaptation to evolving requirements. As a component of the HIMA Smart Safety Platform, the engineering tool adheres to current standards such as OPC UA (Open Platform Communications Unified Architecture). With its robust API, the software seamlessly integrates into nearly any system environment. It also supports automated testing and version management via external tools, enabling easy comparisons of logics and visibility of changes. Additionally, with the SILworX COMPARATOR PLUS, project modifications can be executed swiftly and clearly. This feature enables users to visually and tabularly compare the logic of two different programs, functions, or function blocks (Programming Organization Units), presenting the alterations in a detailed manner. This capability not only enhances clarity but also fosters a more efficient workflow for engineers involved in safety systems.

CX-Programmer, which serves as the programming interface for the entire Omron PLC series, is seamlessly incorporated within the CX-One software suite. This software boasts a plethora of features designed to enhance the efficiency of developing PLC programs. With the introduction of new parameter-setting dialogues, users can significantly reduce the time spent on setup, and the availability of standard function blocks in both IEC 61131-3 structured text and traditional ladder language allows for effortless program development through a simple drag and drop method. Additionally, users can design complex programs utilizing data blocks that consist of either uniform data types (Arrays) or varied data types (Structures). The program makes it easy to access member symbols of the newly created User Defined Type directly. With automatic memory allocation and management, symbol creation is expedited, and users can conveniently monitor all member symbols in the Watch Window simply by referencing their names. Furthermore, using Structures and Arrays as In/Out variables for a Function Block streamlines the process of passing multiple parameters in a consistent format, ultimately improving overall programming workflow. This combination of features makes CX-Programmer an invaluable tool for both novice and experienced programmers alike, facilitating a more intuitive approach to PLC programming.

RSLogix 500 serves as the design and programming environment tailored for the 1747 SLC and MicroLogix controller platforms. This software solution is adaptable, scaling according to the specific controller platform and the programming features it offers, thereby guaranteeing optimal compatibility and performance for your unique application needs. Additionally, its versatility makes it suitable for a range of industrial automation tasks.