I graduated in the 2018 with a bachelor's degree in electrical automation. Now I want to change my career to plc. I have no plc foundation. Please give me some advice from the seniors in plc. ?

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Firstly, it's important to understand the role of PLCs in the modern world. PLCs are the backbone of industrial automation, controlling machinery and processes in sectors ranging from manufacturing to infrastructure. As an electrical automation graduate, your understanding of circuits, control systems, and automation principles will serve as a valuable asset in PLC programming and troubleshooting.

To start your journey, I recommend getting hands-on with PLC hardware and software as soon as possible. Since you're new to PLCs, consider enrolling in entry-level courses offered by technical colleges, online platforms, or even PLC manufacturers like Siemens, Allen-Bradley, or Mitsubishi. These courses provide essential knowledge about PLC architecture, programming languages (Ladder Logic, Function Block, etc.), input/output systems, and network communication protocols.

Simultaneously, invest time in setting up a small PLC lab at home. Purchasing a starter kit or using simulation software can provide practical experience that's critical for skill development. This hands-on practice complements your theoretical understanding and hones your problem-solving skills, which are critical to your success in this field.

Networking with professionals and joining community forums are excellent ways to learn from seasoned PLC veterans. Platforms like PLC Talk, Automating forums, or LinkedIn groups are invaluable resources. Attend industry conferences, webinars, and workshops to stay updated on the latest trends, technologies, and best practices. This will also expose you to real-world applications and systems, which is critical for your professional development.

As you grow more comfortable with the basics, examine more advanced PLC topics. These can include data handling, advanced programming techniques, SCADA systems integration, and Industry 4.0 concepts like IoT and cyber-physical systems. This knowledge will as well as make you more versatile but also more attractive to potential employers who are looking for individuals with up-to-date skills.

One effective way to demonstrate your newfound PLC expertise to employers is through certifications. Many companies and organizations offer certification programs that validate your skills in PLC programming, installation, and maintenance. Certificates from respected organizations can significantly enhance your resume and boost your credibility within the industry.

Moreover, don't underestimate the power of a good mentor. If you can, find someone experienced in PLCs who can guide you through complex topics, offer career advice, and perhaps even assist in finding job opportunities. A mentor can help bridge the gap between academic knowledge and industry expectations, providing insight that can be hard to gain from textbooks alone.