摘要
针对具有４８５接口的低成本ＤＣＳ，提出一种简单实用的主从总线通讯协议，符合简化的ＯＳＩ模型。实际应用表明，协议合理，运行可靠。
Aiming at a low -cost DCS with RS-485 interface, this paper propoaes a mater-slave bus communication protocol based on reductiion OSI. The result in practical application shows that the protocol is reasonable and reliable .
出处
《自动化与仪表》
1996年第3期34-36,共3页
Automation & Instrumentation
