基于PC 的控制系統(tǒng)是自動(dòng)化技術(shù)發(fā)展的一個(gè)新的方向，具有成本低、開(kāi)放性好、與IT
技術(shù)兼容性好等優(yōu)點(diǎn)。針對(duì)工業(yè)生產(chǎn)中存在的安全問(wèn)題，通過(guò)采用防爆型遠(yuǎn)程I/O，建立了一套以工業(yè)PC 機(jī)及軟邏輯（SOFTPLC）控制軟件為控制器、以PROFIBUS-DP 現(xiàn)場(chǎng)總線為網(wǎng)絡(luò)的分布式監(jiān)控系統(tǒng)。同時(shí)利用組態(tài)王提供的人機(jī)界面完成了對(duì)現(xiàn)場(chǎng)數(shù)據(jù)的實(shí)時(shí)采集和處理。本文分析了基于PC 的現(xiàn)場(chǎng)總線控制技術(shù)和實(shí)現(xiàn)方法，重點(diǎn)闡述了系統(tǒng)的硬件設(shè)計(jì)和軟件設(shè)計(jì)。
關(guān)鍵詞：PROFIBUS-DP；PC；防爆；組態(tài)軟件
Abstract ： Control system based on PC is a new trend of automatic technology,
having advantage of low cost、good opening and compatibility with IT technology.
To the security problem existing in the industrial production, adopting explosionproof
type remote I/O, set up a distributed monitoring system using Industrial PC
and soft logic control software (SOFTPLC) as controller and PROFIBUS-DP as network.
And with the man-machine interface offered by Kingview, we succeeded in finishing
the real-time data acquisition and processing. This paper analyses the technology
and the realization method of the fieldbus control based on PC, and expounds the
hardware design and software design of the system.
Keywords：PROFIBUS-DP；PC；explosion-proof；Configuration software