目前，測(cè)控技術(shù)廣泛應(yīng)用于煉油、化工、冶金、電力、輕工和紡織等行業(yè)。本文設(shè)計(jì)
了基于CAN 現(xiàn)場(chǎng)總線的測(cè)控網(wǎng)絡(luò)中下位機(jī)節(jié)點(diǎn)的設(shè)計(jì)，開(kāi)發(fā)了基于DSP 的下位機(jī)節(jié)點(diǎn)CAN現(xiàn)場(chǎng)硬件智能測(cè)控裝置及通訊軟件。通訊軟件主要包括三大模塊：CAN 現(xiàn)場(chǎng)智能測(cè)控裝置初始化，報(bào)文發(fā)送及中斷接收，基于自定義協(xié)議Proto-Can 節(jié)點(diǎn)的協(xié)議實(shí)現(xiàn)即D/A，A/D 等子程序。
關(guān)鍵字：現(xiàn)場(chǎng)總線；DSP；測(cè)控系統(tǒng)
Abstract: Recently, the measurement and control technology is commonly used in many areas. The slave nodes design of the measurement and control network based on CAN field bus technology is introduced in this paper. The communication software and CAN intelligence control device of slave nodes based on DSP (TMS320LF2407) is designed. It mainly includes modules: the initialize of CAN intelligence control device, the transmission and the interrupt reception of the message, the realization of nodes protocol based on user-defined protocol and subprograms of D/A, A/D.
Keywords: Field Bus; DSP; Measuring and Control System