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集散控制系統(Distributed Control System-DCS)集計算機技術、控制技術、通信技術、CRT技術于一體,廣泛應用于生產過程控制系統。隨著計算機和網絡技術的飛速發展,產生了一種新型的控制系統———現場總線控制系統(Fieldbus Control System-FCS)。但國內生產企業的情況是:大多數企業還處于模擬儀表和人工控制的階段,采用DCS控制系統的企業仍是少數。由于DCS應用廣泛、技術成熟,在現有的技術條件和市場條件下,FCS還不能完全取代DCS,而且目前現場總線設備和系統還十分昂貴。因此,除了新建企業外,國內企業在較長時間不可能全面采用現場總線技術,而必須走逐步發展、過渡的道路。 ??我們在上海石化股份公司環保部水質凈化廠監控系統的改造項目中,對3個生產單元已有的DCS和PLC進行改造,增加通信功能,實現總調度室對各生產裝置的集中監控。 2?系統改造方案?? 根據水質凈化廠各生產單元的功能和建設階段,分為廠外調節池、污水一段、氧化溝、四期污水處理、污泥脫水、污泥干化6個生產單元。另外,在廠部設有總調度室,但是總調度室的監控水平較為落后,改造之前基本上不能對各個生產單元進行監控。為了適應生產需要,提高生產效率,改善操作條件,加強監控手段,確保各生產裝置的正常運行,急需對各生產單元和總調度室進行技術和設備的更新改造,從而能在總調度室對各裝置進行監視管理,及時了解各裝置的運行情況,達到指揮及時和調度準確的目的。 2.1?現場監控系統的改造 ??現場監控系統的改造要充分利用原有儀表和設備,主要考慮可靠性和實時性。首先對自控程度較高的3個單元進行改造(系統結構見圖2—1): ??四期污水處理生產單元控制設備配置了兩套ALLEN-BRADELY公司PLC設備。25塊開關量輸入信號卡,可采集384點信號;7塊開關量輸出信號卡,可輸出112點信號;3塊模擬量輸入信號卡,可采集24點信號。兩套AB—PLC通過DH+(數據高速通道)實現數據共享。在原有的現場控制計算機上分別增加以太網卡,通過以太網將實時數據送到總調度室處理。??輸出192點信號;1塊模擬量輸入信號卡,可采集8點信號。系統運行采用遙控開關操作與全模擬流程盤顯示。在原有的Siemens S5-115UPLC上增加RS-232通訊模塊(CP524)和1臺現場操作站,用點對點方法連接,使PLC的數據通過現場操作站送到以太網上,與總調度室監控計算機通信。但RS-232傳輸速率只有9600bps,操作站僅對現場起到監視作用。
Bussmann 170M5973Bussmann 170M5248
FD1600/1200R17HP4_B2 FD1600/1200R17KF6C_B2
SKIIP642GB120-208CTV-F
FS225R12KE3/AGDR-71C
10000UF
EPCOS 400V4800UF B43564-S9488-M2
Bussmann 170M7066/7086/7106/7126
Bussmann 170L3161-F
BUSSMANN 170M7118/7119/7120/7121/7122/7123/7124/7125
Bussmann 170M3465
BUSSMANN 170M7083
Bussmann 170M3488/3489/ 3490/3491/3492/3493/3494/3495
Bussmann 170M5813
BUSSMANN 170M6663
Bussmann 170M3921/3922/3923/3924/3925/3926/3927/3928
BUSSMANN 170M4958/4959/4960/4928/4929/4930
170M2671
Bussmann 170M5922/5923/5924/5925/5926/5927/5928/5929
Bussmann 170M6408/6409/6410/6411/6412/6413/6415
Bussmann 170M4951/4952/4953/4954/4955/4956/4957
Bussmann 170M5508/5509/5510/5511/5512/5513/5514/5515
Bussmann 170M3959/3960/3961/3929/3930/3931
Bussmann 170M6420/6421/6470/6471/6520/6521/6570/6571
Bussmann 170M8611/8612/8613/8510/8511/8512/8513
Bussmann 170M8602/8603/8604/8605/8502/8503/8504/8505
BUSSMANN 170M3458/3459/3460/3463/3464
BUSSMANN 170M4438/4439/4440/4441/4442/4443/4444/4445
BUSSMANN 170M6538/6539/6540/6541/6542/6543/6544/6545
BUSSMANN 170M4558/4559/4560/4561/4562/4563/4564/4565
Bussmann 170M5588/5589/5590/5591/5592/5593/5594/5595
Bussmann 170M4266/4267/4268/4269
Bussmann 170M6108/6109/6110/6111/6112/6113/6114/6115
BUSSMANN 170M6258/6259/6260/6261/6262/6263/6264/6265
Bussmann 170M4822/4823/4824/4825/4826/4827/4828/4829
Bussmann 170M4965/4966/4967/4968/4969/4970/4971/4972
Bussmann 170M3396/3397/3446/3447/3448/3496/3497
Bussmann 170M5960/5930/5931/8600/8601/8500/8501
Bussmann 170M4973/4974/4988/4989/5966/5967/5981/5982
Bussmann 170M3266/3267/3268/3269/3270
BUSSMANN 170M7066/7086/7106/7126
Bussmann 170M5416/5417/5418/5466/5516/5517
Bussmann 170M3108/3109/3110/3111/3112/3113/3114/3115
170M2673/2674/2675/2676/2678/2679/2680/2681 170M1516
Bussmann 170M5316/6308/6309/6310/6311/6312/6313/6314
Bussmann 170M6208/6209/6210/6211/6212/6213/6214/6215
Bussmann 170M4316/4317/4318/4358/4359/4360/4361/4362
Bussmann 170M3566/3567/3568/3569/3570/3571/3572/3573
Bussmann 170M8638/8639/8640/8641/8642
BUSSMANN 170M2616/2617/2618/2619/2620
Bussmann 170M1408/1409/1410/1411/1412/1414/1415
Bussmann 170M4188/4189/4190/4191/4192/4193/4194
FZ1000R33HE3 FZ1800R17HP4-B29
Bussmann 170M5810 500A 690V aR / 170M5876
Bussmann BAO63 63A 550V BS88 gG BAO40 BAO50 BAO63M80
170M3902 125A 690V 170M3903/3904/3905/3906/3907/3908/3909
Bussmann 170M1780/1781/1802/1805/1807
Buss/BS88-4 100FE
Bussmann FWP-40A14Fa
BUSSMANN FWP-2A14Fa
Bussmann JJN-30 30A 300VAC/160VDC JJN-1~30A
BUSSMANN FWP-80Ba
Bussmann 170M5464
Bussmann FWP-150A
Bussmann 170M2073
Bussmann FRN-R-1.6
Bussmann 170M1371
Bussmann /170H0235/0236/0237/0238
Bussmann 170M8611
Bussmann FWH-60B
Bussmann JJN-60 60A 300Vac JJN60LS
Bussmann / GE 323A2433P6
Bussmann 170M3271 500A 690V aR 170M3272/3273
Bussmann 170L9578/9583 170L8880
Bussmann 170M3813D
Bussmann 170M6086
BUSSMANN 170M4445
Bussmann FWH-500A
Bussmann JKS-200
Bussmann 170M3421
Bussmann 170M6084
Bussmann FWH-300A
Bussmann 170M8545
Bussmann 170M6727
Bussmann 170M1413
BUSSMANN 170M6125
Bussmann 170M4700
BUSSMANN 170M6145
Bussmann 170L7299
Bussmann 170M5959
170M2692 16A 690V 170M2691/2693/2694/2695/2696/2697/2698
Bussmann 170M3809
Bussmann 170M8610
Bussmann 170M4016
Bussmann 170M3445
BUSSMANN 170M6464
Bussmann 170M4417
Bussmann 170M5739
Bussmann 170M6248
BUSSMANN 170M6149
BUSSMANN 170M4462
Bussmann 170M6016
Bussmann 170M3392
Bussmann 170M2667
Bussmann 170M6018
Bussmann 170M5465
Bussmann 170M6588/6589/6590/6591/6592/6593/6594/6595
Bussmann 170M3951/3952/3953/3954/3955/3956/3957/3958
Bussmann 170M4488/4489/4490/4491/4492/4493/4494/4495
Bussmann 170M6416 1250A 690V aR /170M6516/6517
Bussmann 170M5408/5409/5410/5411/5412/5413/5414/5415
BUSSMANN 170M3438/3439/3440/3441/3442/3443/3444
Bussmann 170M4243/4244/4245/4246/4247/5238/5239/524
Bussmann 170M4516/4517/4518/4519/4566/4567/4568/4569
Bussmann 170M8629/8630/8631/8632/8633/8634/8635/8636
BUSSMANN 170M6538/6539/6540/6541/6542/6543/6544/6545
Bussmann 170M3466/3467/3471/3472
Bussmann 170M5968/5969/5970/5971/5972/5974/5975
Bussmann 170M5249/5250/6246/6247/6249/6250/6251
Bussmann 170M3188/3189/3190/3191/3192/3193/3194
BUSSMANN 170M5058/5059/5060/5061/5062/5063/5064/5065
Bussmann 170M5108/5109/5110/5111/5112/5113/5114/5115
Bussmann 170M1566/1567/1568/1569/1570/1571/1572
Bussmann 170M4980/4981/4982/4983/4984/8985/4986/4987
Bussmann 170M3008/3009/3010/3011/3012/3013/3014/3015
BUSSMANN 170M4258/4259/4260/4261/4262/4263/4264/4265
BUSSMANN 170M6138/6139/6140/6141/6142/6143/6144/6145
Bussmann 170M3066/3067/3068/3069/3070/3071/3072/3073
Bussmann 170M5366/6358/6359/6360/6361/6362/6363/6364
Bussmann 170M3516/3517/3518/3519/3520/3521/3522/3523
Bussmann 170M4464 500A 690V aR 170M4458/4459
Bussmann 170M3246/3247/3248/4239/4240/4241/4242
BUSSMANN 170M8614/8615/8616/8617/8618/8619/8620/8621
Bussmann 170M3358/3359/3360/3361/3362/3363/3364/3365
Bussmann 170M7078/7079/7080/7081/7084/7085
Bussmann 170M1565 63A 690V aR
Bussmann 450FMM
Bussmann 170M8552
Bussmann 170M8554 1250A 690V aR 170M8555/8555D
Bussmann 170M1368
Bussmann 170M5388/5389/5390/5391/5392/5393/5394/5395
BUSSMANN 170M6644/6645/6646/6647/6648
BUSSMANN FWP-800A
Bussmann 170M3488/3489/3490/3491/3492/3493/3494/3495
Bussmann 170M3243
bussmann FWP-70B
Bussmann 170M6596/6597/6598/6599
Bussmann 170M5494/5495/5496/5497/5498/5499/5500
Bussmann 170M4921/4922/4923/4924/4925/4926/4927
Bussmann 170M3388/3389/3390/3391/3392/3393/3394/3395
BUSSMANN 170M5644/5645/5646/5647/5648/5649/5650
BUSSMANN 170M7064/7065/7084/7085/7104/7105/7124/7125
BUSSMANN 170M6558/6559/6560/6561/6562/6563/6564/6565
Bussmann 170M3420 450A 170M3416/3417/3419/3420/3421
Bussmann 170M8606/8607/8608/8609/8506/8507/8508/8509
Bussmann 170M4396/4397/4446/4447/4496/4497
Bussmann 170M3238/3239/3240/3241/3242/3243/3244/3245
Bussmann 170M4243/4244/4245/4246/4247/5238/5239/5240
BUSSMANN 170M3145/3146/3147/3148/3195/3196/3197/3198
BUSSMANN 1708622/8623/8624/8625/8626/8627
BUSSMANN 170M6346/6347/6348/6349/6546/6547/6548/6549
Bussmann 170M3508/3509/3510/3511/3512/3513/3514/3515
Bussmann 170M4388/4389/4390/4391/4392/4393/4394/4395
BUSSMANN 170M7060/7061/7080/7081/7100/7101/7120/7121
BUSSMANN 170M3258/3259/3260/3261/3262/3263/3264/3265
R302S
Bussmann 170M6018/6068/6218/6019/6069/6169/6219
Bussmann 170M1416 80A 690V aR /170M1417
Bussmann 170M4408/4409/4410/4411/4412/4413
Bussmann 170M1308/1309/1310/1311/1312/1313/1314/1315
Bussmann 170M4802/4803/4804/4805/4806/4807/4808/4809
注:聯系我時,請說是在“傲立機床網”上看到的,謝謝!