TU812V1
TU812V1
：祖巧麗
：
PLC可以進(jìn)行自我診斷。當(dāng)不同的故障發(fā)生的時(shí)候，CPU按照事件的優(yōu)先程度不同而調(diào)用不同的錯(cuò)誤組織塊。在組織塊內(nèi)把故障信息用臨時(shí)變量的方式，存儲(chǔ)在其聲明表內(nèi)，運(yùn)用監(jiān)控軟件，將故障信息采入畫面里，就能夠?qū)崿F(xiàn)對(duì)PLC的工作狀態(tài)進(jìn)行監(jiān)控。如若有任何一個(gè)模塊發(fā)生故障，將會(huì)使得CPU停機(jī)。故而，下傳錯(cuò)誤組織塊OB122非常重要。
上位機(jī)監(jiān)控軟件運(yùn)用的是WINCC6.0，其是基于WINDOW對(duì)象鏈接以及嵌入，同時(shí)創(chuàng)建的開放式接口，能夠讓操作者在計(jì)算機(jī)屏幕中看到PLC的工業(yè)現(xiàn)場情況。在監(jiān)控畫面內(nèi)可以實(shí)現(xiàn)以下的功能：
（1）控制操作：通過WINCC組態(tài)環(huán)境的畫面定義噴吹的時(shí)間、周期以及卸灰的時(shí)間和周期，于中心控制室可以對(duì)相關(guān)設(shè)備實(shí)施在線控制，滿足手自動(dòng)控制方式的選擇以及在線設(shè)置PLC的部分參數(shù)。上位機(jī)只是總線中的一個(gè)站點(diǎn)，它和PLC執(zhí)行實(shí)時(shí)通迅。
（2）顯示功能：按照工藝流程在用戶窗口里設(shè)置電磁閥、風(fēng)機(jī)、卸灰機(jī)、皮帶、運(yùn)行狀態(tài)和故障顯示燈等。在上位機(jī)中能夠?qū)ΜF(xiàn)場設(shè)備予以實(shí)時(shí)監(jiān)控，并且建立起圖形對(duì)象和數(shù)據(jù)對(duì)象的對(duì)應(yīng)關(guān)系，在畫面中借助編程可以達(dá)到模擬顯示除塵系統(tǒng)各閥門運(yùn)行狀況的效果。各個(gè)閥門的位置指示運(yùn)用不同的顏色指示開位、關(guān)位以及正在開或是關(guān)等，還有現(xiàn)場儀表溫度、壓力以及狀態(tài)參數(shù)等指標(biāo)。
（3）數(shù)據(jù)管理：結(jié)合運(yùn)行參數(shù)的變化情況以及重要程度，數(shù)據(jù)存儲(chǔ)并且建立歷史和實(shí)時(shí)的變化曲線，借助實(shí)時(shí)及歷史的數(shù)據(jù)能夠摸清任一時(shí)間系統(tǒng)的運(yùn)行狀態(tài)，了解到除塵管理的過程，以供統(tǒng)計(jì)分析的時(shí)候用。實(shí)時(shí)變化圖顯示的是目前時(shí)間信號(hào)的變化情況，可把這種變化繪制成圖并進(jìn)行記錄。歷史變化圖能夠利用打印機(jī)進(jìn)行打印或者軟盤進(jìn)行備份，以便對(duì)生產(chǎn)工藝的變化或是事故予以分析。
（4）報(bào)警功能：如果某一個(gè)模擬量值超過一定范圍或是出現(xiàn)異常的時(shí)候，能夠按照不同的需要發(fā)出相應(yīng)的報(bào)警。借助工藝流程圖中相應(yīng)的設(shè)備報(bào)警，并借助文字進(jìn)行提示，顯示出故障的位置，同時(shí)在事件表內(nèi)記錄這一故障，對(duì)快速確認(rèn)故障，排除故障起到很好作用。
Newly listedESKOWATER FLOW METER VDK-3MG-DN
FORCE CONTROL 502-M2-MS-03 SERVICE PARTS KIT, NEW IN BAG
INGERSOLL-RAND / SOCATT PAD 77A-M825-7 *NEW*
BRADLEY PLASTIC EYEWASH BOWL DUST COVER S45-1964 *NEW*
BANNER 3FT RIGHT ANGLE SENSING END FIBER OPTIC CABLE ITA13S *NEW*
COSTGUARD 5 MICRON WATER FILTER CARTRIDGE CG5-20 *NEW*
WIDIA 1/4 BOT TAP 14024 *NEW*
WIDELL 1 7/8-12 H6 6FL S/S BOTTOM TAP
STANLEY A30LRA2-5 3/8" DRIVE ANGLE PNEUMATIC NUT RUNNER
FALK STEELFLEX FOR 50 & 1050T10 COVER GRID ASSEMBLY NIB
EAS 1/4" NPT FEMALE MONO COUPLER KBF6 *NEW*
STARCUT 1459758, GUNDRILL COOLANT, 13 7/8" OAL, 0.609", 5 1/2" SHANK, NIB
BELL & GOSSETT 3" X 4" CENTRIFUGAL PUMP SIZE 185016
APPLETON 1" ANGLE LIQUID TIGHT MALL IRON CONNECTOR ST-90100 *NEW LOT OF 3*
EATON 1/4"NPTM BRASS FITTING 68X6 *NEW LOT OF 10*
HARDING CS 001185001 FAN GRILL, LOT OF 2, NEW IN BAG
MORSE 2 1/2 - 4, TAP, NC, HS, GH-7, 6 FLUTE, 8 3/4" OVERALL LENGTH
OMRON E3C-S10 PHOTOELECTRIC SWITCH
YALE BACKCHECK SPRING ADJUSTMENT REVERSIBLE ALUMINUM DOOR CLOSER 3501 NEW
FESTO MINI PNEUMATIC CYLINDER AV-12-4
FALK 1.625" KW 3/8" X 3/16" COUPLING HUB, 1040T *NEW*
PHD CYLINDER ONLY BS10 1 X 20 -B-H4 NNB
FESTO MAINFOLD BLOCK FR-4-1/4C
WATTS FLUIDAIR 1/4" NPT INSERT KIT, IK20Y *NEW*
MOORE I/P CONVERTER 4-20MDAC 3-15PSI
TALEMA TOROIDAL POWER TRANSFORMER 8755-P2S2
DOOSAN WASHER TONGUE D917238 LOT OF 2 NEW
PARKER 3/8"NPT HYDRAULIC ROTARY ACTUATOR SERIES PS
BROWNING J50 S/C C/L CONNECTING CHAIN LINKS, LOT OF 2, NEW IN BAG
SLOAN A-15-A MOLDED DISC DIAPHRAGM FOR ROYAL & REGAL, LOT OF 5 NEW IN BAG SEALED
SMC 1/2" NPT MODULAR PIPING ADAPTOR E40T-04 *NEW IN BAG*
CARD 1-3/16-7 NS 4-FLUTE HAND TAP B-1
PARKER 4F-C4L-10-B CHECK VALVE, 1/4" NPT, 3000 PSI, NIB
EMECANIQUE ZCK J922H4 BODY CONTACT, NEW IN BAG
KAO 5.25" DOUBLE SIDED DOUBLE DENSITY DISKETTES MD2D *NEW LOT OF 10*
SKF EXPLORER BEARING 6205-2Z/C3 NIB
NIAGRA 1-1/2X3/4X1-5/8 2 FLUTE END MILL
SKF SNW 15X2-1/2" BEARING ADAPTER SLEEVE NIB SKF HE315
GREENFIELD 1 3/8-6, ROUND ADJUSTABLE DIE, NC, HS, 4 FLUTE, 3" OD, NIB
SALINA VORTEX CYLINDER DUC4.5X6-MG GRA05-F-S4-MG-W?S1-LL
3M 1" x 50YD, 80 GRADE, CLOTH UTILITY ROLL 051144-05110 *NEW*
FESTO 5-10 BAR CONTROL VALVE GR-1/8B0 151215 K008
HAGER 3.5" x 3.5", 1/2 M.S, FULL MORTISE-STD US 26D *NEW*
ECLIPSE 5/8" PIN DRIVE COUNTERBORE 413 6342
PARKER 250PSI, 2-PORT, 3/8"NPT FLOW CONTROL VALVE 3250G0319 *NEW*
LINCOLN DIVIDER VALVE UV-15S *NEW,SEALED*
CLEVELAND S62154 STYLE FORD SIZE 368 X 469 TAPER SHANK DRILL, 36YA-368 *NEW*
SATURN CIRCUIT BOARD CFUJK3-4 / SDB41024-2
PHD 1-3/8" X 3/4" PNEUMATIC CYLINDER 02942384-01 *NEW*
CLEVELAND 08686, SIZE 22 TAPER LENGTH DRILL, 5-3/4" OAL, HS, LOT OF 11, NEW
HALOGEN LEAK DETECTOR H25C-1N-6-N-E-P?S
HILTI 1" x 6" ANCHOR BOLT KB II 00045412 *NEW, LOT OF 3*
BRAD HARRISON 41360 MINI-CHANGE 5P FEMALE CORDSET, 6', NEW IN BAG
3M BLENDERM 1/2" x 5YD SURGICAL TAPE 1525-0 BOX OF 15
3M 7-1/8" FIBRE DISCS 983 CR *NEW, SEALED LOT OF 25*
UNION BUTTERFIELD 1/4X7, 4 FLUTE HAND TAP
DIXON 2-1/2" TO 5-1/2" RANGE, HOSE CAMPS HS-80 *LOT OF 10, NEW*
SMC 3/16" TUBE, 1/8"NPT FITTING KQU05-34S *NEW* LOT OF 10
WARNER 3/4" OPEN BALL BUSHING TWD-12 WRN *NEW*
BROWNING 7/8" BORE, SPLIT TAPERED BUSHING Q1 1 7/8 *NEW*
CM BIG ORANGE 2G804 1/8" WIRE ROPE CLIPS, LOT OF 5, NEW IN BAG
SANDVIK 2-1/2" STAINLESS STEEL CLAMP 76.1 / 9204 LOT OF 4
BRAD HARRISON 883030D01M003, 3P MALE/FEMALE CORDSET EXTENSION, NEW IN BAG
