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| 摘要: |
| 研究了Modbus协议在备用电源自投(简称BZT)装置内部及装置与上位机的通信问题。首先对Modbus通信协议及其报文格式进行了详细介绍；然后以高压母联自投方式为例分析了BZT的动作过程，并简单介绍了BZT装置的多CPU硬件平台；根据装置各类监控量的数据类型和传输特点．设计了一种简化的信息分类方案；最后详细阐述了整个通信过程。 |
| 关键词: 备用电源自投装置 Modbus通信协议 多CPU |
| DOI： |
| 分类号:TN914.3 TM762.1 |
| 基金项目: |
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| Application of Modbus protocol in communication software design of automatic bus transfer |
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CAO Zhe HUANG Yi-zhuang
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| Abstract: |
| A study on Modbus protocol is given,which is applied in the internal communication of ABT(Automatic Bus Transfer) and the communication between ABT and its superordinate station. Modbus protocol and its message frame are introduced in detail,and the operation process of ABT is analyzed with the automatic transfer types of bus bar breaker as an example. The multi - CPU platform of ABT is briefly introduced. According to the data types and transmission characteristics of the monitoring parameters,a simplified information sorting solution is designed. The whole com-munication procedures are explained. |
| Key words: automatic bus transfer,Modbus protocol,multi-CPU structure |
