Distributed station terminal IEC104 networking method

According to the distributed station terminal IEC104 networking method, a DTU public unit IEC104 server side starts interval unit interception; the DTU common unit IEC104 client starts a connection interval unit; the detection interval unit is connected; extracting master station data and forwarding to the interval unit; according to the method, data of an interval unit is extracted and forwarded to a server, a port mapping function is integrated to a public unit, a common industrial switch is adopted to replace a high-end industrial switch supporting port mapping, and the replacement scheme can save about 20% of production cost; the power grid data of the interval unit is completely mirrored and transmitted, the operation and storage of the public unit on a large amount of data of the interval unit are reduced, the program stability of the public unit is improved, meanwhile, the dependence of the public unit on a high-capacity and high-price MCU is reduced, and a guarantee is provided for further cost reduct