{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is SBF?","a":"SBF (System Function Block) refers to a pre-programmed block provided by the system for users, which is already embedded in the S7 CPU. Users can directly call these blocks in their own programs, but they cannot view or modify them in STEP7, nor can  they be deleted online. As part of the operating system, they do not occupy storage space. Additionally, SBF can also refer to the start button for forward rotation in motor control systems. In frequency division multiplexing technology (FDM), SBF stands for sideband filter. Furthermore, in some cases, SBF can also represent low-pass decoding."}]}],"pr":"bbb1ef46ac8dd2d7ff71e60e9c25ad546ea512861ac1fc3066390368255221a3"}