【正文】 設(shè)備的設(shè)備配置信息，在組態(tài)總線系統(tǒng)時自動使用這些信息；系統(tǒng)自動地對與整個系統(tǒng)有關(guān)的數(shù)據(jù)輸入誤差和前后一致性進(jìn)行檢查核對。在參數(shù)設(shè)定階段，每個從站將自己的實際組態(tài)數(shù)據(jù)與從主站接收到的組態(tài)數(shù)據(jù)進(jìn)行比較。第一類DP主站由DP從站讀取輸入信息并向DP從站寫入輸出信息。單主站系統(tǒng)可獲得最短的總體循環(huán)時間?！鬌P從站：帶二進(jìn)制或模擬輸入輸出的驅(qū)動器、閥門等?！糁С謫沃骰蚨嘀飨到y(tǒng)。◆每個DP從站最大為246字節(jié)的輸入和輸出數(shù)據(jù)?！魪姶蟮脑\斷功能，三級診斷信息。以主控制器S73152DP作為主站，通過以太網(wǎng)變換機ESM連接到安裝有以太網(wǎng) C P1613的工控機上。系統(tǒng)運行要求是按順煤流方向是正常順序停機、按逆煤流方向是正常順序啟動，而事故跳閘時是從設(shè)備故障點及其上游的設(shè)備瞬時停機，而且故障點下游設(shè)備保持原來的工作狀態(tài)不變。下面介紹第一部分的內(nèi)容， 生產(chǎn)過程的工藝流程圖 從輸煤工藝聯(lián)鎖流程圖分析得知，在控制系統(tǒng)程序組態(tài)時應(yīng)嚴(yán)格按照該流程進(jìn)行沒計及組態(tài)，以確保與設(shè)備和人身安全有關(guān)的控制程序的編程，亦須在遵循系統(tǒng)聯(lián)鎖的原則下靈活組臺。2 輸煤段工藝及控制要求 各工藝段所包含的設(shè)備由輸煤皮帶機、葉輪給煤機、往復(fù)式給煤機、碎煤機，滾軸篩帶式除鐵器、圓盤除鐵器、精細(xì)除鐵器、犁煤器、切換擋板拉繩開關(guān)和跑偏開關(guān)等組成，其他如撕裂打滑、堵煤等保護(hù)開關(guān)均不進(jìn)本控制系統(tǒng)。s first open field bus standard, its application field covers from mechanical processing, process control, electric power, traffic to building automation fields. PROFIBUSDP is an optimized module, have higher data transfer rate, applied to the munication between system and external equipment, especially suitable for the remote I/O system. It allows high speed periodic small batch data munication, suitable for high automation demands on time. This design is the application of Siemens field bus in power plant coal conveying system, power plant coal conveying system is the important process of the electric power production in power plants. Thermal power plant coal conveying system of process equipment layout is highly decentralized, single furnace boiler problem of accurate measurement of single grinding of coal has been affect the cost of power generation is equilibrium statistical problems, especially coal calorific value and statistical calculation of boiler bustion efficiency is still unable to solve intractable problems. And field bus technology for highly decentralized, electromagnetic interference, big equipment has its unique advantages, thus conveying system can be used with the DCS remote I / 0 bus mode of intelligent munication module bus pattern with the bination of control mode, advanced technology, improve the level of the coal conveying control system. This design for the project in two steps, first coal conveying control system renovation, and then the soft measurement of the coal and coal into the furnace. In order to ultimately achieve instantaneous single furnace fuel metering and dynamic production cost accounting purpose.Keywords Coal handling system,PCS,ProfibusDP目 錄摘 要 IABSTRACT II1 緒論 22 輸煤段工藝及控制要求 3 3 3 4 4 53 ProfibusDP協(xié)議 6 ProfibusDP的基本功能 6 ProfibusDP的通信原理 8 電子設(shè)備數(shù)據(jù)文件(GSD) 8 ProfibusDP的技術(shù)優(yōu)勢 94 系統(tǒng)的網(wǎng)絡(luò)結(jié)構(gòu) 10 SIMATIC PCS 7系統(tǒng)概述 10 SIMASTIC PCS 7結(jié)構(gòu)圖 105 系統(tǒng)硬件及功能配置 12 12 模塊的選擇 13 程序設(shè)計 13 14 通訊設(shè)置 16 S7300與S7200的EM277之間的ProfibusDP通訊 186 上位機監(jiān)控軟件的研究與設(shè)計 25 WINCC組態(tài)軟件的功能和特點 25 利用組態(tài)軟件WinCC設(shè)計系統(tǒng)監(jiān)控界面 25結(jié) 論 36參考文獻(xiàn) 37致 謝 381 緒論 在電廠輸煤系統(tǒng)中，輸煤的特點是工藝線路很長、設(shè)備數(shù)量多、系統(tǒng)跨度大而且布置分散、設(shè)備多采用強電控制、燃料敞露運輸、電纜用的數(shù)量較大、運行的環(huán)境惡劣、電磁對設(shè)備干擾大、設(shè)備間工藝聯(lián)鎖關(guān)系比較復(fù)雜。火力發(fā)電廠輸煤系統(tǒng)的工藝設(shè)備布置具有高度分散性，鍋爐的單爐單磨燃煤的計量準(zhǔn)確問題一直是影響電廠發(fā)電成本正平衡統(tǒng)計的頑癥，更是燃煤發(fā)熱量和鍋爐燃燒效率統(tǒng)計計算尚無法解決的棘手問題。摘 要PROFIBUS現(xiàn)場總線技術(shù)是隨著數(shù)字信號系統(tǒng)的發(fā)展而產(chǎn)生的,它是世界上第一個開放式現(xiàn)場總線標(biāo)準(zhǔn)，其應(yīng)用領(lǐng)域覆蓋了從機械加工、過程控制、電力、交通到樓宇自動化的各個領(lǐng)域。本設(shè)計是應(yīng)用西門子現(xiàn)場總線對電廠輸煤系統(tǒng)的改造， 電廠輸煤系統(tǒng)是火電廠電力生產(chǎn)的重要生產(chǎn)過程。關(guān)鍵詞 輸煤系統(tǒng)，PCS，PROFIBUSDP37 / 40ABSTRACT PROFIBUS field bus technology is with the development of the digital signal system, it is the world39。在電廠輸煤系統(tǒng)中，輸煤系統(tǒng)的工藝設(shè)備的布置具高度分散性，而現(xiàn)場總線技術(shù)對于