系統主要由監控中心、無線通信系統、現場監控終端、傳感器及儀表四部分組成。
監控中心:由微機、無線數傳機、全向天線、模擬屏及UPS組成,主要完成各現場終端數據的實時采集、監測、控制、數據存儲、打印報表、數據查詢等功能。
廈門岳航計算機工程有限公司
聯系人:李素云
企業QQ:2851195446,2851195466
手機:18965423501
座機:0592-5165501
無線通信系統:監控中心與各泵站終端之間采用無線方式通訊。監控中心為主動站,其它終端副站為被動從站,該系統采用無線電管理委員會給定的數據頻率,以一點對多點的方式與從站通訊,監控中心為全向天線,各副站為定向天線。
現場監控終端:核心為PLC,是一個智能設備,它有自己的CPU和控制軟件,主要完成現場的數據采集、轉換、存儲、報警、控制等功能,并通過無線信道與監控中心微機進行數據通信。根據監控中心的命令分別完成系統自檢、數據傳送、控制輸出等任務。
傳感器及儀表:是PLC監測現場信號的“眼睛”,現場所有信號都需經過傳感器及儀表的轉換,才能輸出標準信號,被PLC終端所接受。系統主要測量電壓、電流、液位、壓力、流量及耗電量等參數。
現場PLC監控終端是工業現場與監控中心之間的橋梁紐帶,一方面它采集現場儀表、變送器、設備運行狀態等信號,另一方面它又與監控中心通訊,執行有關命令。現場終端一般無人值守。因此,終端機的性能和質量對系統的可靠性影響很大。經充分論證,選用西門子S7-200系列PLC作現場終端具有較高的性能價格比,它具有體積小、易擴展、性能優等特點,非常適合小規模的現場監控。New Redington 1-PCU-34 Mechanical Counter 4 Digit Right Hand Actuation
Red Lion CUBC0030 Single Preset Counter 10-28VDC Relay
New Hecon G0468189 Totalizer 115VAC 2.75W 8 Digits
Lot of 2 Red Lion CUB10000 Miniature Counter, 6-Digit, 1.5A, Need Batteries
Omron H7ET-N-B 7-Digit Time Totalizer LCD, 0-999999.9 HR, 10-YR Battery
Lot of 2 Omron H7ET Self Powered Time Counter
Veeder Root 744386-011 Counter Totalizer 6 Digits 115VAC
New Omron Compact Time Totalizer 6 Digit H7GP-TD
Omron H7GP-TD Compact Time Totalizer Counter 6 Digit
Redington 7620-6T0 Hourmeter
Veeder-Root C3420562 Totalizing 6 Digit LED Counter, 12-24VDC
New Danaher C628-81050 Veeder Root Dual Preset Counter
Eagle Signal HK520A6 Timer Totalizer, 99999sec, 120VAC 60Hz, Resettable
Omron H7ET-B Self Powered Time Counter, 7 Digit
Red Lion CUB3T310 Electric Timer 0.1 to 99999.9 Hour 6 Digit Remote Reset
Red Lion Controls CUB70010 Counter 8-Digit Yel/Grn Backlight **DEAD BATTERY**
Red Lion CUB7T100 Counter 8 Digital Timer **BATTERY INCLUDED**
Pair of Red Lion CUB7T100 Counter 8 Digital Timer **Without Lithium Battery**
New McMillan Co. 220 Rate Totalizer & Programming Assistant *Never been used*
New McMillan Co. 220 Rate Totalizer *Never been used*
Syrelec 3131 B45 Counter
DURANT 6-Y-41346-402-MEU 6 Digit Counter 24VDC 3W
Lot of 2 Phoenix Contact PLC-BSC-24DC/21 Terminal Block w/ 29666595 Relay
Phoenix Contact DEK-OV-24DC/24DC/3 Isolated Terminal Block Relay 24VDC Control
Crouzet 84134021 Solid State Relay 50A / 24-280VAC out / 90 - 280 VAC control
Lot of 2 Invensys IO-ODC-R0-060 Continental SSR Interface Module 4-28VDC
Potter & Brumfield 2IO-4B Relay Board
Potter & Brumfield 2IO-4B Relay Board w/ (3) OAC5 Relays
Potter & Brumfield 2IO-4B Relay Board w/ (4) OAC5 Relays
Allen Bradley 700-SKOC2Z25 Solid State Relay w/Socket, 5-24VDC IN, 5-48VDC OUT
CII Continental RVD3/5V75T/L 24-660VAC 3Phase 75Amp Solid State Contactor; 4-32V
TURCK Multi Modul Relay Couplers MK73-R12/24VUC DIN Rail Mount 24VAC
Cii Continental RVD3/5V75T/L Solid State Contactor
2D78559 2D78559G01
CE03250 CE03250-000000
EL3020
07KT97
07KT97
07KT97 WT97
07KT97 WT97
07KT97(WT97)
1336F-BRF50-AA-EN
1579A00412LM1BV
1756-IB16I
CVX-1243-MC2
DSDI110A 57160001-AAA
DSDO110
DSQC604 3HAC12928-1
KA55HXKGE-8331
MSD013A1Y
MSD2CCBBYN
MSD2DDDDYN
New Carlo Gavazzi RM1A48D50 Solid State Relay 4.5-32VDC Control 480VAC 50A Line
Carlo Gavazzi RM1A48D50 Solid State Relay 4.5-32VDC Control 480VAC 50A Line
Continental Industries RSDA-660-25-1D0 Solid State Relay
Chromalox 4001 SCR Single phase Zero-Crossover SCR power Controller
New Gefran GQ-50-24-A-1-3 Solid State Relay w/ Logic Control 50A 230VAC
Celduc SC864910 Solid State Relay 90-240VAC Input, 24-520VAC 50A Output
CRYDOM A2450 Solid State Relay 90-280VAC 50A 47-63Hz