TC-HAO081
TC-HAO081
莫格電氣自動(dòng)化提供DCS PLC備件,產(chǎn)品服務(wù)于用戶(hù)安裝的控制系統(tǒng)(集散控制系統(tǒng),可編程控制器,面板控制器和驅(qū)動(dòng)器),在供應(yīng)超過(guò)65個(gè)不同的國(guó)家。
以“專(zhuān)業(yè)、 誠(chéng)信、創(chuàng)新、合作、共贏”的經(jīng)營(yíng)理念、不斷開(kāi)發(fā)新產(chǎn)品、為客戶(hù)提供優(yōu)質(zhì)服務(wù)、以大限度追求客戶(hù)滿(mǎn)意、并不斷開(kāi)拓新領(lǐng)域業(yè)務(wù)。
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:祖巧麗
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PLC的基本工作方式是順序執(zhí)行用戶(hù)程序,每一時(shí)鐘周期執(zhí)行一條指令。對(duì)用戶(hù)程序的執(zhí)行一般有循環(huán)掃描和定時(shí)掃描兩種,掃描過(guò)程分為三個(gè)階段,即輸入采樣階段、程序執(zhí)行階段和輸出刷新階段,如圖1所示。
(1)輸入采樣階段。PLC在輸入采樣階段以?huà)呙璺绞巾樞蜃x人所有輸入端子的狀態(tài),存人輸人寄存器,接著轉(zhuǎn)入程序執(zhí)行階段。
(2)程序執(zhí)行階段。PLC在程序執(zhí)行階段中順序?qū)γ織l指令進(jìn)行掃描。先從輸人寄存器讀人所有輸入端子的狀態(tài)。
圖 PLC程序執(zhí)行過(guò)程
(3)輸出刷新階段。所有指令執(zhí)行完畢后,將輸出寄存器中所有的輸出狀態(tài)送到輸出電路,成為PLC的實(shí)際輸出。
PLC執(zhí)行完上述的三個(gè)階段稱(chēng)為一個(gè)掃描周期。
UFM TYPE 4 FLOW METER MN-FSB50GMV-12-?32V1.0-A1WD
DEZURIK 2" NPT, 20 PSIG GLOBE VALVE 854806-1BA0-1C6?-1T
VAT HV ANGLE VALVE 21640-QA41-AAKZ?/0001 1506578/1 NEW IN BOX
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HAM-LET 2000 PSI 3/4 INCH NPT LOCKING BALL VALVE, H-700-SS-L-3/4-?T-LD
MANNESMANN REXROTH 250V 5A HYDRAULIC SOLENOID VALVE, H-4WH 25 E61//41 SO12
YARWAY 3/4" 250 PSI CAST IRON Y STRAINER, 901
JAYCO, 3/4" NPT, 125 PSI, 248 SCFM, VALVE TD
MAC 150 PSI SINGLE PRESSURE REGULATOR VALVE, PR63D-21AA *NEW*
PFEIFFER VACUUM AUTOMATIC VENTING VALVE TSF 012 *NEW*
LADISH 4" 150CWP GATE VALVE 4001-068
FESTO 24VDC FEILDBUS DIRECT VALVE INTERFACE, CPV18-GE-DN2-8
ROVALVE 150PSI 12" KNIFE GATE VALVE S17-A MIN/HYC
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CROSBY 3" PRESSURE RELIEF VALVE STYLE 2J3 J0S-E-15-C
VNE 1000 WOG 1 INCH DN25 STAINLESS STEEL BALL VALVE
MILWAUKEE VALVE 1/2" NPT, 125 SWP HORIZONTAL SWING CHECK VALVE
GRACO 38MM I.D. 79MM O.D. SEAT VALVE, 180529 *NEW*
SMC PRESSURE REGULATOR NIB IR3020-N02G
AIRCO 250 PSI APPROX 7/8" NPT AIR REDUCTION VALVE, 801-0233
ASCO RED HAT VALVE 8262G232 NIB
BELOIT 250PSI PRESSURE REGULATOR MC2-75-120B NIB
ROSS / DECCO, 2-10 BAR, 3-POLE MALE, 24VDC, SOLENOID VALVE, W6076B2437 / 316K33
NUMATICS 150 PSIG 1-1/2" NPT IN/OUT 1" NPT EXH. LOCKOUT VALVE, VT40N12Y
RICHDEL 120VAC DIAPHRAGM VALVE, I205PVN120ACNC
JAMESBURY 1" BALL VALVE 5150 313600 TT
ASCO 11.6 W PNEUMATIC SOLENOID VALVE EV8316G081V / EV8007G1 NNB
NACHI MODULAR VALVE OCY-G03-B-Y-50
AUTOMATIC VALVE 10BAR 150PSIG PNEUMATIC SOLENOID VALVE S31C-DB-6
1" BALL VALVE PN40
VICKERS PRESSURE REDUCING VALVE DGMX1 3 PB BW 20
SWAGELOK, 150oF, 1500 PSI, 0.188" TUBE OD, BALL VALVE, SS-62VS4-JL-KL-?T *NEW*
CASHCO * PRESSURE REGULATOR 1/2" 150'' * RF DA1 SST/CT/PF/D
ASCO RED-HAT 3/8" 20W 120PSI SOLENOID VALVE COIL NIB EF80172 103639
ROSS 2773A5072 110/120 VOLTS 50/60 HERTZ 3/4" IN/OUT PORT L-O-X VALVE
FESTO 145 PSI 1/4" NPT PNEUMATIC AIR VALVE W/O LEVER, TH-5-1/4-B
AMERICAN INDUSTRIAL 150-250PSI 350°F HEAT EXCHANGER AA-608-3-4-FP
UNION CARBIDE PUROX REGULATOR R-2047
CANFIELD SOLENOID CONNECTOR VDC/VAC NIB 6-48
BRASS 1/2" T FITTING LOT OF 20
BOSCH 3600PSI SOLENOID VALVE 081WV06P1V1010K?M024/00E51 *NEW, NO BOX*
COLONIAL * 2" * ND10 NW50 DA63 NNB
HAYWARD 2" CPVC UNION BALL VALVE SOCKET TB2200ST
PARKER 250 PSI 1/2" NPT LOCKOUT VALVE, LV40A
FLOWSERVE 1.750" MECHANICAL SEAL JS M71808 9/99 / CSCEX1750ECXVB NIB