PLC Programmer – is that something for you?

PLC (Programmable Logic Controllers) are nowadays an indispensable part of all industrial automation systems. These small, inconspicuous devices, when properly programmed, allow for controlling specific industrial processes or devices, replacing relay-based control systems. This enables simplification, and sometimes even the complete elimination, of wiring between relays and contactors.

A defined number of input circuits in a PLC is responsible for collecting information about the state of the machine or system being operated, while the output circuits are used to connect signaling and actuating components. Thanks to this, PLC controllers play a key role in managing both simple three-color traffic lights and advanced automated systems in warehouses or production halls.

The history of programmable controllers dates back to 1969, when the Modicon Model 084 controller, designed by Dick Morley, was introduced in the United States. This controller weighed 46 kg, had 4 kB of memory, and was several times larger than the controllers used today. By the late 1960s, PLCs had gained popularity in the automotive industry in the USA before being adopted in South America and eventually worldwide. Today, the ongoing automation in almost every industry has increased the demand for PLC controllers. This, in turn, has led to a growing need for PLC Programmers, whose role is to program and integrate these controllers with machines and devices.

Programmable Logic Controllers (PLCs) are used across nearly all industrial sectors due to their remarkable versatility. Furthermore, PLCs can also be utilized to control simple devices we use daily, such as elevators.

As a result, PLC programming has become one of the most valued skills in modern industry. A PLC Programmer creates algorithms using blocks provided by the manufacturer or designs custom ones. These algorithms serve as a set of commands for the PLC, directing the operation of a machine. Every PLC operates in a loop: reading and writing input states, generating output states, storing them in memory, communicating with networks, and checking the performance of its components.

• Process Analysis – Before creating a program, every PLC programmer performs a detailed analysis of the process to be controlled by the PLC. At this stage, factors influencing the operation of individual machines are identified. This step is essential for accurate programming as it allows for precise determination of the inputs and outputs for the given process.

• Program Creation – The next step in PLC programming is writing the program. Specialists use various programming languages for this purpose. If the programming language is not predetermined by the manufacturer, it must be selected to align with the logic of the device’s operation and fit the conditions under which the programmed process will function.

• Program Simulation and Testing – At this stage, the program is tested on a simulator or a real object. These tests verify the program’s functions, correctness, and safety.

• Making Adjustments and Program Optimization – Problems that arise during testing must be resolved before installation. At this stage, additional features may be added, or changes made to existing capabilities. The goal is to ensure the smooth functioning of the program.

PLC programming is just one of many skills utilized daily by a PLC Automation Engineer. Professionals in this role should be proficient in reading electrical diagrams, understanding technical documentation, and working with control programs and relay logic concepts. Experience in the field of electrical engineering is also highly valuable.

In addition to technical expertise, soft skills are essential for a PLC Automation Engineer. One key aspect of this role involves traveling for system commissioning, which is an integral part of every project. These assignments often take place abroad and involve working in multinational teams. Therefore, a strong command of English is crucial for seamless communication with international teams and resolving potential issues.

Other important qualities for candidates seeking this position include:

• Communication and Teamwork Skills – These are essential as PLC Automation Engineers frequently interact with end clients and other contractors during commissioning. They are often tasked with conducting technical consultations or training sessions for the client’s staff. Additionally, they participate in official project tests or acceptance reviews.
• Creativity – This trait is invaluable when it comes to solving problems and adapting systems to meet client requirements.

The combination of technical knowledge, interpersonal skills, and creative problem-solving makes the role of a PLC Automation Engineer both challenging and rewarding. It also highlights why such professionals are indispensable in modern industrial automation projects.

A career as a PLC Automation Engineer is often pursued by graduates of fields such as Automation and Robotics, Mechatronics, or Electrical Engineering, at either the undergraduate or master’s level. However, this educational background is not mandatory. Through specialized courses leading to certifications and with relevant experience in the technical field, it is also possible to qualify for a PLC Programmer role.

In addition to formal education, internships or apprenticeships, even while still studying, play a crucial role. These experiences positively impact a young candidate’s job application. As mentioned earlier, proficiency in English or German, particularly for both verbal and written communication, is an invaluable requirement. Therefore, during education, it is essential to focus on learning technical terminology, which is key to effective communication in project-related matters.

Nieodłączną częścią pracy większości Programistów PLC są wyjazdy służbowe i praca na delegacjach, która może przydarzyć się w każdym projekcie. W związku z tym, dobrze aby kandydat był gotowy na podróże służbowe na uruchomienia programowanych wcześniej systemów. Prawo jazdy kategorii B również może okazać się niezbędne w pracy Automatyka.

Business trips and working on-site during delegations are integral to the work of most PLC Programmers. These assignments can occur during any project, so candidates should be prepared for frequent travel to commission previously programmed systems. A category B driver’s license may also be necessary for the role.

If you see your future in PLC programming and possess qualities like openness, communication skills, and high motivation for work, along with experience gained during studies, courses, or internships, a career as a PLC Automation Engineer might be perfect for you.

Don’t hesitate to try your hand and apply. We encourage you to monitor our job postings and send your applications to the email address: rekrutacja@stevia-automation.pl.

We look forward to hearing from you!