詳細(xì)內(nèi)容：1785-CHBM 用戶界面 每臺PLC都通過CPU模塊上的MPI集中編程接口和配置有MPI接口的PC機(jī)相連。我們采用西門子的CP5611與PLC的CPU相連。PC機(jī)中配置SIMATICSTEP7V5.2編程軟件。 由于是冗余系統(tǒng)，還需要安裝西門子的冗余軟件，才能做到PLC的兩個(gè)CPU之間同步。3臺上位機(jī)中，其中兩臺是操作員用的監(jiān)控機(jī)，另一臺為維修機(jī)。在整個(gè)系統(tǒng)中，上位機(jī)之間可以互相通訊，也可以與PLC之間通訊。每臺PC機(jī)都要安裝CP5611驅(qū)動軟件，才能完成功能。 程序結(jié)構(gòu) 系統(tǒng)組態(tài)及參數(shù)設(shè)置 由SIMATICSTEP7V5.2編程軟件，進(jìn)入硬件組態(tài)狀態(tài)，對各臺PLC進(jìn)行網(wǎng)絡(luò)參數(shù)設(shè)置。首先，建立Pro2ject，如取名為C：\ swjtu，在該文件下選擇網(wǎng)絡(luò)Subnet為PROFIBUS，站名為SIMATIC414HStation，然后進(jìn)行硬件組態(tài)。其次是建立各站在網(wǎng)絡(luò)的地址。最后組態(tài)3個(gè)PG/PC站，在選項(xiàng)窗口中選中CP5611，并分配地址，主編程站地址為0，其余兩個(gè)只要地址不相同即可。 程序結(jié)構(gòu) 西門子SIMATICS7-400HPLC的編程器STEP7可運(yùn)行在PC機(jī)的Windows環(huán)境下，界面友好，提供了梯形圖、語句表和塊圖3種形式的編程、調(diào)試、診斷等功能。本實(shí)例采用模塊化程序結(jié)構(gòu)，程序由幾大功能塊組成，每個(gè)功能塊完成一系列的控制邏輯，放置在組織塊OB1中的指令決定控制程序的各功能塊的執(zhí)行。本例中功能塊FC1是微機(jī)聯(lián)鎖命令處理程序，F(xiàn)C2是進(jìn)路處理程序，F(xiàn)C3，F(xiàn)C4是微機(jī)聯(lián)鎖狀態(tài)處理程序，F(xiàn)C5是常量定義，F(xiàn)C6是信號輸出處理，F(xiàn)C7是道岔輸出處理，F(xiàn)C8是信號采集。程序結(jié)構(gòu)框圖如圖4所示。功能塊為多層次調(diào)用，F(xiàn)C1在調(diào)用其他功能塊，比如FC1調(diào)用FC9， FC9調(diào)用FC10，F(xiàn)C10調(diào)用FC11、FC12、FC13、FC14等。在STEP7中，允許功能塊調(diào)用最多為16層。 　　圖3為應(yīng)用于唐山鋼鐵集團(tuán)公司焦化廠火車站的微機(jī)聯(lián)鎖系統(tǒng)的PROFIBUS-DP/MPI網(wǎng)絡(luò)原理框圖。3臺監(jiān)控機(jī)為監(jiān)控層，PLC為聯(lián)鎖層，I /O為控制層。車站聯(lián)鎖系統(tǒng)主要由聯(lián)鎖以及信號、道岔、區(qū)段和進(jìn)路的動作建立。本例中，以車站微機(jī)聯(lián)鎖的控制過程說明PROFIBUS-DP網(wǎng)絡(luò)的實(shí)踐應(yīng)用。 網(wǎng)絡(luò)系統(tǒng)結(jié)構(gòu)圖 圖3　網(wǎng)絡(luò)系統(tǒng)結(jié)構(gòu)圖 　　進(jìn)路控制過程包括進(jìn)路建立、進(jìn)路解鎖。進(jìn)路建立包括進(jìn)路選擇、道岔控制、進(jìn)路鎖閉、信號控制，進(jìn)路解鎖就是對已建立的進(jìn)路、道岔進(jìn)行的進(jìn)路鎖閉，進(jìn)路解鎖包括取消進(jìn)路、人工解鎖、正常解鎖、中途折返解鎖、故障解鎖。 程序結(jié)構(gòu)框圖 圖4　程序結(jié)構(gòu)框圖 　　在組織塊OB1中，先調(diào)用FC1對聯(lián)鎖命令進(jìn)行處理，其中包括進(jìn)路處理、道岔處理、信號處理，調(diào)用FC2對進(jìn)路進(jìn)行處理，調(diào)用功能塊FC1、 FC2對聯(lián)鎖狀態(tài)進(jìn)行處理，再調(diào)用功能塊FC6、FC7、FC8對數(shù)據(jù)進(jìn)行輸入輸出處理。以功能塊FC1命令處理程序?yàn)槔�，說明其功能調(diào)用過程。功能塊 FC1先調(diào)用 FC10進(jìn)行進(jìn)路選擇，然后調(diào)用FC11、FC12、FC13等，對其他命令進(jìn)行處理。 結(jié)論 從實(shí)際應(yīng)用來看，整個(gè)網(wǎng)絡(luò)運(yùn)行良好，網(wǎng)絡(luò)結(jié)構(gòu)簡單，技術(shù)性能穩(wěn)定。實(shí)踐證明，PROFIBUS-DP網(wǎng)構(gòu)成的靈活實(shí)用分布式網(wǎng)絡(luò)在鐵路系統(tǒng)有良好的應(yīng)用前景。 140XTS10215 1,768.42 1 PC RMB 140XTS10206 1,386.83 1 PC RMB 140XTS01212 2,147.64 1 PC RMB 140XTS01209 2,024.81 1 PC RMB 140XTS01206 1,901.98 1 PC RMB 140XTS01203 1,768.42 1 PC RMB 140XTS00500 371.70 1 PC RMB 140XTS00212 1,768.42 1 PC RMB 2/28 Price Adjustment List C&A-2012-HEC.xls 140XTS00209 1,706.41 1 PC RMB 140XTS00206 1,645.59 1 PC RMB 140XTS00203 1,583.58 1 PC RMB 140XTS00200 384.08 1 PC RMB 140XTS00100 799.95 1 PC RMB 140XSM01000 15,818.60 1 PC RMB 140XSM00200 4,871.69 1 PC RMB 140XCP90000C 3,612.60 1 PC RMB 140XCP90000 3,770.47 1 PC RMB 140XCP60000 304.36 1 PC RMB 140XCP51000 483.81 1 PC RMB 140XCP50000 420.20 1 PC RMB 140XCP40200 1,203.82 1 PC RMB 140XCP40100 1,504.78 1 PC RMB 140XCP20000 258.96 1 PC RMB 140XCA71709 1,745.65 1 PC RMB 140XCA71706 1,037.65 1 PC RMB 140XCA71703 763.37 1 PC RMB 140XCA10215 1,768.42 1 PC RMB 140XCA10206 1,386.83 1 PC RMB 140XBP01600C 6,671.53 1 PC RMB 140XBP01600 5,402.67 1 PC RMB 140XBP01000C 5,402.67 1 PC RMB 140XBP01000 4,132.58 1 PC RMB 140XBP00600C 4,132.58 1 PC RMB 140XBP00600 2,861.32 1 PC RMB 140XBP00400C 3,546.78 1 PC RMB 140XBP00400 2,335.50 1 PC RMB 140XBP00300C 3,352.24 1 PC RMB 140XBP00300 2,317.63 1 PC RMB 140XBP00200C 2,541.37 1 PC RMB 140XBP00200 1,519.25 1 PC RMB 140XBE10000C 4,956.82 1 PC RMB 140XBE10000 3,771.29 1 PC RMB 140SHS94500 4,978.00 1 PC RMB 140SDO95300S 13,852.62 1 PC RMB 140SDI95300S 11,779.85 1 PC RMB 140SAI94000S 22,038.27 1 PC RMB 140NWM10000 39,341.08 1 PC RMB 140NRP95400C 28,438.94 1 PC RMB 140NRP95400 26,966.89 1 PC RMB 140NOM25200C 21,180.40 1 PC RMB 140NOM25200 19,934.69 1 PC RMB 140NOM21200C 18,687.98 1 PC RMB 140NOM21200 17,442.42 1 PC RMB 140NOM21100C 13,706.96 1 PC RMB 140NOM21100 12,459.04 1 PC RMB 140NOE77111C 26,633.44 1 PC RMB 140NOE77111 25,423.13 1 PC RMB 140NOE77101C 19,369.37 1 PC RMB 140NOE77101 18,159.08 1 PC RMB 140NOC77101 19,595.17 1 PC RMB 140NOC77100 19,595.17 1 PC RMB 140NOA62200 19,937.02 1 PC RMB 140HLI34000C 8,219.99 1 PC RMB 140HLI34000 8,695.34 1 PC RMB 140ESI06210C 18,318.08 1 PC RMB 140ESI06210 17,086.58 1 PC RMB 3/28 Price Adjustment List C&A-2012-HEC.xls 140ERT85410Z 21,023.52 1 PC RMB 140EIA92100C 11,442.90 1 PC RMB 140EIA92100 9,482.17 1 PC RMB 140EHC20200C 16,429.21 1 PC RMB 140EHC20200 15,165.53 1 PC RMB 140EHC10500C 16,429.21 1 PC RMB 140EHC10500 15,165.53 1 PC RMB 140DVO85300C 17,027.59 1 PC RMB 140DVO85300 15,407.75 1 PC RMB 140DSI35300C 10,689.91 1 PC RMB 140DSI35300 9,352.15 1 PC RMB 140DRC83000C 6,416.36 1 PC RMB 140DRC83000 5,133.10 1 PC RMB 140DRA84000C 7,699.64 1 PC RMB 140DRA84000 6,416.36 1 PC RMB 140DDO88500C 7,699.64 1 PC RMB 140DDO88500 6,416.36 1 PC RMB 140DDO84300C 7,699.64 1 PC RMB 140DDO84300 6,416.36 1 PC RMB 140DDO36400 12,840.00 1 PC RMB 140DDO35310C 9,307.37 1 PC RMB 140DDO35310 8,021.67 1 PC RMB 140DDO35301C 9,353.39 1 PC RMB 140DDO35301 7,704.49 1 PC RMB 140DDO35300C 8,984.14 1 PC RMB 140DDO35300 7,625.60 1 PC RMB 140DDO15310C 9,307.37 1 PC RMB 140DDO15310 8,013.17 1 PC RMB 140DDM69000C 8,868.68 1 PC RMB 140DDM69000 7,554.42 1 PC RMB 140DDM39000C 7,234.90 1 PC RMB 140DDM39000 5,971.20 1 PC RMB 140DDI85300C 9,070.53 1 PC RMB 140DDI85300 7,773.68 1 PC RMB 140DDI84100C 7,131.97 1 PC RMB 140DDI84100 5,836.37 1 PC RMB 140DDI67300C 8,347.33 1 PC RMB 140DDI67300 7,064.05 1 PC RMB 140DDI36400C 13,361.77 1 PC RMB 140DDI36400 11,561.57 1 PC RMB 140DDI35310C 8,565.24 1 PC RMB 140DDI35310 6,742.03 1 PC RMB 140DDI35300C 7,700.85 1 PC RMB 140DDI35300 6,480.51 1 PC RMB 140DDI15310C 8,565.24 1 PC RMB 140DDI15310 6,740.81 1 PC RMB 140DAO85300C 10,489.20 1 PC RMB 140DAO85300 8,725.05 1 PC RMB 140DAO84220C 7,074.95 1 PC RMB 140DAO84220 5,780.78 1 PC RMB 140DAO84210C 7,074.95 1 PC RMB 140DAO84210 5,780.78 1 PC RMB 140DAO84010C 8,024.09 1 PC RMB 140DAO84010 6,740.81 1 PC RMB 140DAO84000C 7,699.64 1 PC RMB 140DAO84000 6,427.27 1 PC RMB 140DAM59000C 7,554.42 1 PC RMB 140DAM59000 6,240.17 1 PC RMB 4/28 Price Adjustment List C&A-2012-HEC.xls 140DAI75300C 9,124.37 1 PC RMB 140DAI75300 7,872.68 1 PC RMB 140DAI74000C 6,740.81 1 PC RMB 140DAI74000 5,467.22 1 PC RMB 140DAI55300C 9,318.25 1 PC RMB 140DAI55300 8,034.99 1 PC RMB 140DAI54300C 6,028.97 1 PC RMB 140DAI54300 4,745.69 1 PC RMB 140DAI54000C 6,740.81 1 PC RMB 140DAI54000 5,467.22 1 PC RMB 140DAI45300C 9,630.63 1 PC RMB 140DAI45300 8,347.33 1 PC RMB 140DAI35300C 9,630.63 1 PC RMB 140DAI35300 8,347.33 1 PC RMB 140DAI34000C 7,074.95 1 PC RMB 140DAI34000 5,780.78 1 PC RMB 140CRP93200C 18,781.38 1 PC RMB 140CRP93200 17,529.23 1 PC RMB 140CRP93100C 13,773.21 1 PC RMB 140CRP93100 12,521.21 1 PC RMB 140CRP31200C 15,884.15 1 PC RMB 140CRP31200 13,236.80 1 PC RMB 140CRA93200C 18,781.38 1 PC RMB 140CRA93200 17,529.23 1 PC RMB 140CRA93101C 15,027.57 1 PC RMB 140CRA93101 13,762.55 1 PC RMB 140CRA93100C 13,773.21 1 PC RMB 140CRA93100 12,521.21 1 PC RMB 140CRA31200C 14,440.14 1 PC RMB 140CRA31200 12,033.45 1 PC RMB 140CRA21220C 11,372.06 1 PC RMB 140CRA21220 10,108.62 1 PC RMB 140CRA21210C 11,664.10 1 PC RMB 140CRA21210 10,425.43 1 PC RMB 140CRA21120C 10,262.34 1 PC RMB 140CRA21120 9,034.22 1 PC RMB 140CRA21110C 10,114.78 1 PC RMB 140CRA21110 8,886.64 1 PC RMB 140CPU67261C 151,705.13 1 PC RMB 140CPU67261 131,916.62 1 PC RMB 140CPU67160S 120,265.97 1 PC RMB 140CPU67160C 119,742.05 1 PC RMB 140CPU67160 108,773.97 1 PC RMB 140CPU65260C 122,281.10 1 PC RMB 140CPU65260 106,331.38 1 PC RMB 140CPU65160S 102,005.69 1 PC RMB 140CPU65160C 115,719.76 1 PC RMB 140CPU65160 101,256.01 1 PC RMB 140CPU65150C 89,850.02 1 PC RMB 140CPU65150 77,081.14 1 PC RMB 140CPU53414BC 107,129.40 1 PC RMB 140CPU53414B 102,007.47 1 PC RMB 140CPU43412UC 83,330.60 1 PC RMB 140CPU43412U 72,461.40 1 PC RMB 140CPU43412AC 80,841.84 1 PC RMB 140CPU43412A 76,505.61 1 PC RMB 140CPU31110C 44,010.87 1 PC RMB 140CPU31110 42,277.92 1 PC RMB 5/28 Price Adjustment List C&A-2012-HEC.xls 140CPU11303C 46,557.43 1 PC RMB 140CPU11303 44,650.02 1 PC RMB 140CPU11302C 26,702.24 1 PC RMB 140CPU11302 24,630.75 1 PC RMB 140CPS52400C 12,400.81 1 PC RMB 140CPS52400 11,160.84 1 PC RMB 140CPS51100C 6,210.36 1 PC RMB 140CPS51100 4,959.86 1 PC RMB 140CPS42400C 16,120.68 1 PC RMB 140CPS42400 14,880.73 1 PC RMB 140CPS41400C 13,640.77 1 PC RMB 140CPS41400 12,400.81 1 PC RMB 140CPS22400C 12,400.81 1 PC RMB 140CPS22400 11,160.84 1 PC RMB 140CPS21400C 11,160.84 1 PC RMB 140CPS21400 9,920.88 1 PC RMB 140CPS21100C 6,210.36 1 PC RMB 140CPS21100 5,736.28 1 PC RMB 140CPS12420C 11,128.56 1 PC RMB 140CPS12420 10,015.44 1 PC RMB 140CPS11420C 9,378.10 1 PC RMB 140CPS11420 8,337.00 1 PC RMB 140CPS11100C 6,210.36 1 PC RMB 140CPS11100 5,212.53 1 PC RMB