April 29, 2024
Updated June 12, 2025
17 minute read
Embarking on a Career as a PLC Programmer
A Programmable Logic Controller (PLC) Programmer is a specialized engineer or technician who designs, develops, and maintains the automated systems that control machinery and processes in industrial environments. At a high level, PLC programmers write the instructions that tell machines what to do, how to do it, and when. These PLCs are ruggedized computers that form the backbone of modern automation, ensuring that everything from a car assembly line to a power distribution network operates efficiently and reliably.
Working as a PLC Programmer can be incredibly engaging. You'll often find yourself at the intersection of hardware and software, translating complex operational requirements into logical sequences that machines can execute. There's a thrill in seeing your code bring massive machinery to life or streamline a critical manufacturing process. Furthermore, the constant evolution of technology in this field means that learning is a continuous and exciting part of the job, with new challenges and innovations regularly appearing on the horizon.
Understanding the Realm of PLC Programming
PLC Programmers are pivotal in the world of industrial automation. They ensure that complex machinery and industrial processes operate smoothly, efficiently, and safely. This career path involves a unique blend of skills in programming, electrical systems, and problem-solving, making it both challenging and rewarding.
What are PLCs and Their Role in Industrial Automation?
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Reading list
We've selected some books
that we think will supplement your
learning. Use these to
develop background knowledge, enrich your coursework, and gain a
deeper understanding of the topics covered in
PLC Programmer.
This is another key textbook in power system relaying, offering in-depth coverage of the subject. It is suitable for advanced undergraduate and graduate students and provides a strong theoretical and practical understanding of protective relaying systems. It widely referenced book in the field.
Provides a broad survey of electric relays, covering their principles of operation and applications for various types. It includes historical background and discusses the design and principles of operation of relay components. This practical approach makes it a valuable reference for engineers, technicians, and students interested in understanding the wide spectrum of electric relays.
Known for its technical depth, this book provides an analytical approach to power system protection. It comprehensive reference for understanding abnormal system behavior and effective control actions using relays. It is suitable for advanced students and researchers.
Focusing on PLCs, a core technology in industrial automation, this book delves into their design and application. It covers various programming languages used in PLCs and emphasizes good program design practices and troubleshooting techniques. is highly valuable for those looking to understand and work with PLCs and is often used as a textbook.
Provides a practical, hands-on approach to implementing IIoT projects. It's valuable for those who want to gain practical experience in building smart industrial automation solutions using IoT technologies. It focuses on contemporary applications and provides a practical perspective.
Offers practical, real-world examples of PLC programming problems solved using both Ladder Logic and Structured Text, featuring both Allen-Bradley and Siemens platforms. It's highly useful for gaining hands-on experience and seeing how concepts are applied in industry.
Provides an introduction to Ladder Diagram programming based on the IEC 61131-3 standard. It's suitable for beginners, including those without an electrical background, and offers practical examples based on real-world automation problems. It focuses on the fundamental concepts of ladder logic.
Focuses on the practical aspects of commissioning power systems and protective relays. It is highly relevant for professionals working in the field, providing guidance on testing, setting, and maintaining relaying systems. It offers hands-on knowledge essential for implementing relay protection schemes.
With the increasing connectivity of industrial systems, cybersecurity is paramount. addresses the critical topic of securing industrial control systems, including SCADA, DCS, PLC, HMI, and SIS. It provides tools for developing and implementing effective cybersecurity programs in ICS environments.
Addresses the practical aspects and challenges of working with digital protective relays. It valuable resource for engineers and technicians who need to understand the application and troubleshooting of modern relaying technology. It helps in solidifying the understanding of digital relaying through problem-solving.
Another comprehensive resource covering the concepts behind PLCs. is often recommended for its clear explanations and inclusion of foundational concepts needed before diving into programming. It serves as a solid reference for students and practitioners.
Similar to other cybersecurity books, this title focuses specifically on the security aspects of industrial automation and control systems. It's crucial for understanding the vulnerabilities and protection methods in connected industrial environments.
This specialized book delves into the principles and applications of numerical distance protection, a key function of modern protective relays. It is suitable for advanced students and practicing engineers focusing on transmission line protection. It provides in-depth knowledge of a specific and important relaying application.
Specifically addresses the security of industrial networks, which are the backbone of modern industrial automation systems. It's essential for understanding how to protect these networks from cyber threats.
Covers the design, modeling, and evaluation of protective relays, including the use of advanced techniques. It is suitable for researchers and engineers involved in the development and assessment of relaying systems. It provides a deeper understanding of the technical aspects behind relay design and performance.
This introductory guide focuses on building PLC programs using the Structured Text language. It's designed for beginners and covers understanding ST syntax, programming logic, and even integrating contemporary concepts like generative AI in automation. It offers a fresh approach for those interested in text-based programming.
This practical guide focuses specifically on Allen-Bradley PLCs using RSLogix 500 software. It is ideal for those working with or learning on this specific platform. It provides step-by-step guidance for beginners on ladder logic programming within the RSLogix 500 environment.
Addresses contemporary issues related to the cybersecurity and electromagnetic compatibility of modern protective relays. It is highly relevant for understanding the vulnerabilities and protection methods for digital relaying systems in today's environment. This book dives into a critical and current topic in the field.
Provides practical lessons on programming multiple popular PLC brands, including Allen-Bradley, Siemens, and Mitsubishi, using real-world examples. It's beneficial for gaining exposure to different PLC platforms and common industrial applications.
An introduction to Structured Text (ST) programming for PLCs, following the IEC 61131-3 standard. is valuable for those looking to learn a text-based programming language beyond ladder logic. It includes numerous code examples and best practices for structuring programs.
Provides a strong foundation in the principles of industrial instrumentation and process control, which are essential components of industrial automation. It's a practical guide with real-world applications, making it suitable for students and professionals seeking a solid understanding of the basics. It can serve as a textbook for introductory courses.
Delves deeper into PLC programming, exploring advanced concepts such as data handling, PID control, and communication protocols. It is valuable for engineers looking to enhance their expertise in industrial automation with a focus on ladder logic applications. It provides practical knowledge for real-life projects.
Focuses on the protection of electricity distribution networks, where relays play a crucial role. It covers the specific challenges and relaying practices in distribution systems. It valuable resource for understanding relay applications in a specific part of the power grid.
Provides a practical introduction to PLC programming methods and industrial applications, aiming to be manufacturer-independent. It includes examples and problems utilizing several popular PLCs, focusing on fundamental understanding applicable across different brands.
Would cover the fundamental principles of industrial control systems, providing a broad understanding of how automation is implemented in industrial processes. It is likely a good resource for gaining a foundational knowledge of the subject.
While a specific author is not provided, books on this topic generally cover the principles and practices of designing electrical control systems, which heavily utilize relays. Such a book would be essential for understanding how relays are integrated into larger control schemes. It would provide practical knowledge for designing and implementing control circuits.
A comprehensive overview of electric motors and their control systems, crucial elements in automated industrial processes. The book covers operation, selection, installation, control, and maintenance of various motor types and control systems. It's a practical reference for anyone involved with the electrical aspects of industrial automation.
Part of a series, this handbook focuses specifically on end-to-end testing of protective relaying schemes. This critical aspect of ensuring proper system operation and involves testing the entire protection path, including relays and communication. It specialized but important topic for professionals.
Focuses on the use of Ethernet/IP in power and utilities applications. It covers the design, implementation, and troubleshooting of Ethernet/IP systems in power and utilities environments. It is written by an experienced engineer with a deep understanding of the protocol.
Clearly explains the fundamentals of power system protection with illustrative examples. It good starting point for those new to the subject and can be followed by more advanced texts. It helps solidify an understanding of the basic principles before diving into more complex topics.
Focusing on Supervisory Control and Data Acquisition (SCADA) systems, this book explores their applications worldwide. SCADA systems are integral to industrial automation for monitoring and controlling dispersed processes. useful reference for understanding SCADA architecture and implementation.
Focuses on the use of Ethernet/IP in medical device applications. It covers the design, implementation, and troubleshooting of Ethernet/IP systems in medical device environments. It is written by an experienced engineer with a deep understanding of the protocol.
Focuses on the use of Ethernet/IP in process control applications. It covers the design, implementation, and troubleshooting of Ethernet/IP systems in process control environments. It is written by two experienced engineers with a deep understanding of the protocol.
Likely offers a practical, hands-on approach to industrial automation, which is essential for gaining practical skills in the field. While specific details require further verification, such books are invaluable for bridging the gap between theory and practice.
Offers broad coverage of industrial automation, including a significant section on programmable controllers, instrumentation, and motion control. It focuses on operation rather than mathematical design and is suitable for a variety of courses. It's a good reference for understanding the broader context of PLC applications.
This practical resource covers industrial electricity and motor control systems, including the use of relays in these applications. It is suitable for electricians and those working in industrial settings. The book helps in understanding how relays are applied in real-world industrial automation and control circuits.
Offers a deep dive into the Modbus protocol, another widely used industrial communication standard. It's highly relevant for understanding how PLCs communicate with various devices and systems, as mentioned in the course descriptions.
This textbook focuses on electric motor control, a common application where various types of relays are extensively used. It covers control circuits, motor starting methods, and protection, providing practical knowledge on relay applications in this domain. It good resource for understanding a specific, widespread use of relays.
While not solely focused on relays, this book covers the principles of control system design, which often involve the use of relays as control elements. It provides a broader context of how relays fit into overall control strategies in industrial automation. It is useful for understanding the application of relays within control systems.
This practical guide focuses on the HART protocol, commonly used in process automation for communication with smart field devices. It's valuable for those working with instrumentation and control systems that interface with PLCs.
While not solely focused on industrial automation, this book is highly relevant to contemporary topics like machine vision and intelligent automation. It provides a comprehensive introduction to the fields of pattern recognition and machine learning, which are increasingly being applied in industrial settings for tasks like quality control and predictive maintenance.
A classic resource specifically for Siemens S7-300/400 PLCs, focusing on Ladder Diagram (LAD) and Function Block Diagram (FBD) programming. While focused on an older platform, it provides foundational knowledge for working with Siemens PLCs and their programming environments. It valuable reference for understanding the evolution of Siemens systems.
This book, written for Westinghouse Electric, focuses on electro-mechanical relay systems used historically. While these systems are older technology, understanding them is crucial for working with existing infrastructure and gaining a complete historical perspective on relay development. It's more valuable for historical context and understanding legacy systems.
For more information about how these books relate to this course, visit:
OpenCourser.com/career/44nxor/plc
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