Module block type control system

The utility model relates to a module block type control system. The module block type control system is characterized in that at least three switch power sources, at least three control processors, a frame with an analog input card, an analog output card, a switching value input card and a switching value output card and at least three exchangers are connected in a combined manner to obtain one of a simple single-machine system, a basic double-machine fault tolerant system and a complete three-machine fault tolerant system according to different control requirements and control scales; and three control modes corresponding to the three systems are adaptively recognized according to differences of module components and wire connecting modes of the different systems. The module block type control system has the advantages that all components of the same distributed control system are utilized, a simple structure, a basic structure and a complete structure are formed according to different control requirements and control scales and a method of building blocks by using modules, and control requirements on different industries or different control areas in the same industry are met.