在总线结构的分布式测控系统中，当系统实时性要求较高、突发性较强时，主从通信方式往往不能适应需要，而需要采用竞争式通信。
In distributed measurement and control system with bus structure, master slave communication may be replaced by race communication, when real time and burst are needed.
介绍一种用VB工具软件开发集散型控制系统的方法，并用主从式通信控制方式解决了通信网络中的总线竞争问题。
This paper introduces means to develop a distributive control system with VB language. With main follow control manner, the problem of bus competition is overcomed.
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