IC693PBM200歐美進口IC693PBM200歐美進口
PLC的應(yīng)用
目前,PLC在國內(nèi)外已廣泛應(yīng)用于鋼鐵、石油、化工、電力、建材、機械制造、汽車、輕紡、交通運輸、環(huán)保及文化娛樂等各個行業(yè),隨著其性能價格比的不斷提高,應(yīng)用的范圍還在不斷擴大,PLC的應(yīng)用大致可歸納為以下幾類。
1)、開關(guān)量的邏輯控制
這是PLCzui基本、zui廣泛的應(yīng)用領(lǐng)域。PLC的邏輯控制取代傳統(tǒng)的繼電系統(tǒng)控制電路,實現(xiàn)邏輯控制、順序控制,既可用于單機控制,也可用于多機群控及自動化生產(chǎn)線的控制等。如機床電氣控制、裝配生產(chǎn)線、電梯控制、冶金系統(tǒng)的高爐上料系統(tǒng)以及各種生產(chǎn)線的控制。
2)、運動控制
PLC可以用于圓周運動或直線運動的控制。目前,大多數(shù)的PLC制造商都提供拖動步進電機或伺服電機的單軸或多軸位置控制模塊,這一功能可廣泛用于各種機械,如金屬切削機床、金屬成型機床、機器人、電梯等。
鄭娟萍
廈門仲鑫航自動化設(shè)備有限公司
3)、過程控制
過程控制是指對溫度、壓力、流量、速度等連續(xù)變化的模擬量的閉環(huán)控制。PLC采用相應(yīng)的A/D和D/A轉(zhuǎn)換模塊及各種各樣的控制算法程序來處理模擬量,完成閉環(huán)控制。PID調(diào)節(jié)是一般閉環(huán)控制系統(tǒng)中用得較多的一種調(diào)節(jié)方法。過程控制在冶金、化工、熱處理、鍋爐控制等場合有非常廣泛的應(yīng)用。現(xiàn)代的大、中型PLC一般都有閉環(huán)PID控制模塊,這一功能可以用PID子程序來實現(xiàn),而更多的是使用PID模塊來實現(xiàn)。
4)、數(shù)據(jù)處理
PLC具有數(shù)學(xué)運算(含矩陣運算、函數(shù)運算、邏輯運算)、數(shù)據(jù)傳送、數(shù)據(jù)轉(zhuǎn)換、排序、查表、位操作等功能,可以完成數(shù)據(jù)的采集、分析及處理。這些數(shù)據(jù)可以通過通信接口傳送到的智能裝置進行處理,或?qū)⑺鼈兇蛴溆谩?shù)據(jù)處理一般用于大型控制系統(tǒng),如造紙、冶金、食品工業(yè)中的一些大型控制系統(tǒng)。
5)、通信及聯(lián)網(wǎng)
PLC通信括PLC相互之間、PLC與上位機、PLC與其它智能設(shè)備間的通信。PLC與其它智能控制設(shè)備一起,可以構(gòu)成“集中管理、分散控制”的分布式控制系統(tǒng),滿足工廠自動化系統(tǒng)發(fā)展的需要。
SIEMENS PTX6.H HIGH VOLT TERMINATION BLOCK ***NIB***
JOHNSON CONTROLS Y65F13-0 CLASS 2 TRANSFORMER ***NIB***
JOHNSON T-7606-1 TEMPERATURE ELECTRIC SWITCH 15-55F ***NIB***
USG SST 316 PRESSURE GUAGE 0-160PSI 0-1100KPA ***NNB***
JOHNSON CONTROLS VG7243LT-3008B0 VALVE ASSEMBLY ***NIB***
JOHNSON CONTROLS A72AA-4C CLOSE HIGH TEMPERATURE CONTROL ***NIB***
SPORLAN HVE-2.5-C THERMOSTATIC EXPANSION VALVE **NIB**
CONRAC/CRAMER 472A-E TIMER 30MIN 115/60 10A ***NNB***
JOHNSON T-5210-145 TEMPERATURE TRANSMITTER 0-100F ***NIB***
CARRIER 32LT-900-301/32LT900301/32LT-660-004 ***NIB***
EAGLE/DANAHER MP8A609 CYCLE TIMER 120V/60HZ 60SEC ***NIB***
SUPERIOR VALVE CO. 3060A/3060 450 PSI RELIEF VALVE ***NIB***
IFM/EFECTOR E18050 MICRO DC CABLE 4WIRE (LOT OF 4) ***NNB***
RANCO 012-4833-070 DUAL PRESSURE CONTROL ***NIB***
ALLEN BRADLEY 1492-WD4 TERM. BLOCKS (LOT OF 12) ***XLNT***
ALLEN BRADLEY 42KL-RTC-G3/A PHOTOELECTRIC SENSOR ***XLNT***
JOHNSON CONTROLS P66ABB-24C FAN SPEED CONTROL ***NIB***
JOHNSON CONTROLS T-5500-52 PNEUMATIC THERMOMETER ***NIB***
CARRIER 19 C 35 6151 SIGHT GLASS ***NIB***
SPORLAN HVE-7-C THERMOSTATIC EXPANSION VALVE ***NIB***
TURCK B 5143-0/B5143-0/U0879-55 P11 - C CORDSET ***NIB***
JOHNSON SERVICE CO. 49-23050-T5502-3 THERMOMETER ***NIB***
ACME TRANSFORMER PL-112700 PRIMARY FUSE KIT 600V 30A ***NIB***
DODGE 15Q15L56/MR94744 TIGEAR REDUCER 15:1 ***XLNT***
SPORLAN GV-1-C THERMOSTATIC EXPANSION VALVE ***NIB***
SPORLAN OE9S230 SOLENOID VALVE USE W/ OMKC-2 ***NIB***
PHOENIX CONTACT IEC 60947-7-1 TERM. BLOCK (LOT OF 8) ***XLNT***
BALLUFF BFS S65-PA-5-V09-NNN DATASENSOR ***NIB***
ALLEN BRADLEY 42KL-E1QZB-G3 PHOTOELECTRIC SENSOR ***NNB***
SUPERIOR VALVE CO 591WA-11ST BALL VALVE FULL PORT ***NIB***
FUJI AMPH-8780 NOZZLE CP-4 SMT NC-1850 5.0MM W/O AMID ***NNB***
FUJI AMPH-8770 NOZZLE CP-4/CP4 SMT NC-1837 3.7MM W/AMID ***NNB***
FUJI AMPH-8760 NOZZLE CP-4 SMT NC-1825 2.5MM W/O AMID ***NNB***
FUJI AMPH-8760 NOZZLE CP-4/CP4 SMT NC-1825 2.5MM W/AMID
SPORLAN ORIT-6-0/50-5/8, ORIT605058 VALVE ***NIB***
FUJI AMPH-8740 NOZZLE CP-4 SMT NC-1718 1.8MM WITH OUT AMID ***NNB***
FUJI AMPH-8730 NOZZLE CP-4 SMT NC-1713 1.3MM WITHOUT AMID ***NNB***
FUJI AMPH-8730 NOZZLE CP-4/CP4 SMT NC-1713 1.3MM W/AMID ***NNB***
FUJI AMPH-8720 NOZZLE CP-4/CP4 SMT NC-1710 1MM WITHOUT AMID ***NNB***
TOTALINE P502-8415S REFRIGERANT FILTER DRIER ***NIB***
CARRIER 5 F 20 3742 CASING UNIT ***NIB***
PROXIMITY 12ADM ROTARY POSITION INDICATING SWITCH ***NIB***
ALLEN BRADLEY 813S-VOA LINE VOLTAGE MONITOR RELAY ***NNB***
SUPERIOR VALVE CO 586WA-10ST BALL VALVE FULL PORT ***NIB***
SUPERIOR VALVE CO 587WA-14ST BALL VALVE FULL PORT ***NIB***
SPORLAN SVE-1-C THERMOSTATIC EXPANSION VALVE ***NIB***
YAMATAKE-HONEYWELL/FUJI MX100CM91A REMOTE FILE I/O ***XLNT***
AVAL DATA CORPORATION AVME-311F PCB CARD ***XLNT***
YAMATAKE-HONEYWELL MX100PT12 OUTPUT TRANSISTOR ***XLNT***
YAMATAKE-HONEYWELL MX100PT21 OUTPUT RELAY 16PT ***XLNT***
YAMATAKE-HONEYWELL MX100GT78 32 PT DC 12/24 IN ***XLNT***
YAMATAKE-HONEYWELL MX100 CP91 90-001-1C PCB CARD ***XLNT***
FUJI VM1932/X0041PA-3 PCB CARD W/O MEMORY CARD ***XLNT***
FUJI DF9200143-BO/JZMMC-IS70B REV. B 01 PCB CARD *XLNT*
FARNELL ELECTRONIC COMP CE/148-955 TRANSFORMER ***XLNT***
FARNELL ELECTRONIC AT/D3012 148-957 TRANSFORMER ***XLNT***
STREAM SM90-IN/SM 90-IN/5580001021 INTERFACE ***NIB***
OMRON CPM1-20EDR I/O UNIT EXPANSION (NO END COVER)*XLNT
OMRON CPM1-20EDR I/O UNIT EXPANSION ***XLNT***
OMRON C40H-C6DR-DE-V1 SYSMAC PROGRAMMABLE CONTROL ***XLNT***
OMRON CQM1-CPU11-9 END PLATE FOR PLC ***XLNT***
OMRON C28P-EDR-A 20P 24VDC I/O UNIT EXPANSION MODULE ***XLNT***
ALLEN BRADLEY 512-CJA-6P-25R STARTER W/ DISCONNECT ***NIB***
ALLEN BRADLEY 512-AJA-6P-24R STARTER W/DISCONNECT ***NIB***
KME 20C05018 MOD 01 MONITOR ***XLNT***
SIEMENS HNF261S HEAVY DUTY SAFETY SWITCH 30AMP ***NNB***
BUSSMANN LPS-RK-30SP FUSE TIME DELAY (LOT OF 6) ***NNB***
SIEMENS HF321J HEAVY DUTY SAFETY SWITCH 30AMP ***NNB***
BAYSIDE NR23S-020-010 GEAR HEAD RATIO N20:1 ***NNB***
DYNAPAR/DANAHER CONTROLS H220100100245 TACHOMETER ***XLNT***
RITTAL SZ 2586/SZ2586 LIMIT SWITCH ***XLNT***
POTTER & BRUMFIELD KRP-14DN-24 RELAY 3PDT 24VDC ***XLNT***
ALLEN BRADLEY 100-A09NZ*3/B CONTACTOR 9A 3P 24VDC ***XLNT***
ALLEN BRADLEY 104-A09NZ243/A REVERSING CONTACTOR ***XLNT***
PHOENIX CONTACT 1492-HM2 TERMINAL BLOCK (LOT OF 13) ***XLNT***
OPTO 22 G4IOL LOCAL PANEL INTERFACE ***XLNT***
OPTO 22 SNAP-IDC5Q TWO AXIS QUADRATURE INPUT MOD *XLNT*
OPTO 22 SNAP-B8MC RACK 8MOD W/EXTRA TERMINAL BLOCK*XLNT
SOLA ELECTRIC 23-13-060-2 TRANSFORMER 60VA ***NNB***
OMRON E3S-BT11-L 12-24VDC PHOTOELECTRIC SWITCH ***NNB***
ANALOG DEVICES 3B17-00 LVDT INPUT MODULE ***XLNT***
ANALOG DEVICES 3B16-00 STRAIN GAGE INPUT MODULE ***XLNT***
ANALOG DEVICES 3B37-X-00 ISOLATED TC INPUT MODULE*XLNT*
ANALOG DEVICES 3B31-03 ISOLATED V INPUT MODULE ***XLNT***
ALLEN BRADLEY 800MR-A1D1S SERIES C PUSHBUTTON ***NIB***
ANALOG DEVICES 3B03 4 CHANNEL BACKPLANE ***XLNT***
ALLEN BRADLEY 845T-HC32BFW-C INCREMENTAL ENCODER ***NIB***
ACTUS POWER NPSA25-NN-60-E1 SERVO AMPLIFIER ***NIB***
NEMIC/LAMBDA MBS-1320-33 250V/20AMP NOISE FILTER ***NNB***
ALLEN BRADLEY 871C-P8R18 PROXIMITY SWITCH 10-30VDC*NIB*