Why are function blocks utilized with devices like RFID readers?

Function blocks are utilized with devices like RFID readers primarily to simplify Programmable Logic Controller (PLC) programs by packaging logic into a single program element. This modular approach allows for the encapsulation of complex functionality, which can be reused across different parts of a system or across multiple projects. By incorporating function blocks, programmers can create cleaner, more organized code that is easier to manage and maintain.

Additionally, function blocks can facilitate the implementation of specific operations associated with RFID reading and processing without having to write extensive code for each occurrence. This streamlining is particularly beneficial in automation systems where efficiency and clarity in programming are paramount.

Although enhancing security, reducing power consumption, and connecting multiple protocols are important aspects of system design, they are not the primary reasons for the use of function blocks in this context. Function blocks focus more on logical organization and reusability of code rather than the broader aspects of system performance or interoperability.