A Soft PLC (Programmable Logic Controller) is a software-based controller that emulates the functions of traditional hardware PLCs. Unlike physical PLCs, Soft PLCs run on standard computing platforms such as PCs or servers, offering flexibility, scalability, and easier integration with other software systems. They are widely used in industrial automation to control machinery and processes, providing the same reliability and real-time performance as hardware PLCs when configured properly. Soft PLCs can be updated or expanded through software changes, reducing downtime and hardware costs. However, they may require additional cybersecurity measures to protect against threats targeting general-purpose operating systems.