Given the communication protocol , this paper presents a state machine model based on primary / secondary distributive multicomputer communication system program , analyzes the solving methods of five parameters to present the state machine , and discusses the basic trellis architecture of source codes 摘要在約定通信協議的情況下,本文給出主從分布式多機通信系統程序的狀態機模型,分析表征狀態機的5個參量的求解方法,討論源代碼實現的基本框架結構。