fy2000j microcomputer error-proof blocking system is a complete error-proof solution exclusively for the centralized control mode (o&m station). the system is operated in the form of client/server to realize the function of centralized and uniform control. it can browse the status of the primary and secondary equipment of all slave stations. the system is composed of a centralized control error-proof system and slave station error-proof systems. through network communication technology and error-proof intelligent topology technology, the centralized management, maintenance and real-time sharing of the data of each slave station are realized. at the business level, error-proof blocking is realized for invoice issuance at station and remote review, for remote invoice issuance and local operation, and for cross-station operation.