Structured Text (ST) is a text-based programming language for PLCs, similar to languages like Python. It's preferred by those with a programming background because it's better for complex calculations and looping tasks compared to Ladder Diagram (LD). ST allows for more efficient coding of mathematical operations and loops. However, since most maintenance personnel are more comfortable with LD, it's recommended to use LD for most of the project and ST only for parts that require heavy data manip