【摘要】 Modbus是一种开放的、标准的现场总线通信协议,是世界自动化领域中普遍使用的协议之一。本文设计了Modbus实验系统,给出了该系统功能描述及硬件原理框图,建立了软件分层模型,并通过实例描述了系统节点的程序设计思想和设计流程。更多还原

【Abstract】 Modbus is a kind of exoteric and standard field bus protocol,which is applied widely in the world field of automation and control.This paper introduced the Modbus protocol and design experiment system based on C8051F Series singlechip.The system function and the composing of hardware were described.A software configuration was summarized.In addition,some examples to design an experiment program were given.更多还原