This course leverages systems that facilitate the development of essential PLC troubleshooting skills. Students learn PLC input and output testing, software testing, and application troubleshooting through interactive exercises and real-world scenarios. Hands-on experience is a cornerstone of this course, with students working directly with industry-standard components, Ethernet Switches, an I/O Simulator, and a variety of application circuits. By studying industry-relevant applications and mastering troubleshooting techniques, learners build a robust foundation for success in diverse industrial settings. Through engaging instruction and practical exercises, students develop the skills and knowledge necessary for a rewarding career in fields such as manufacturing, automation, and beyond.