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SCXI-1000SCXI-1000

PLC對數(shù)字量信號的識別是通過其數(shù)字量輸入模塊完成的。PLC控制軋鋼生產(chǎn)設(shè)備時(shí)，設(shè)備中的壓力、溫度、液位、行程數(shù)字及操作按鈕等數(shù)字量傳感器與PLC的輸入端子相連，每個(gè)輸入端子在PLC的數(shù)據(jù)區(qū)中分配有一個(gè)“位"，每個(gè)“位"在內(nèi)存中為一個(gè)地址。讀取PLC輸入位的狀態(tài)值可作為識別數(shù)字量故障信號的根據(jù)。診斷數(shù)字量故障的過程，實(shí)質(zhì)就是將PLC正常的輸入位狀態(tài)值與相應(yīng)的輸入位的實(shí)際狀態(tài)值相比較的過程。如果二者比較的結(jié)果是*的，則表明設(shè)備處于正常工況，不*則表明對應(yīng)輸入位的設(shè)備部位處于故障工況。這就是PLC診斷基于數(shù)字量信號故障的基本原理。這種診斷方法，故障定位準(zhǔn)確，可進(jìn)行實(shí)時(shí)在線診斷。通過PLC的圖形功能塊編程，還可將故障診斷融入過程控制，達(dá)到保護(hù)軋鋼設(shè)備的目的。

手機(jī)

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鄭娟萍

廈門仲鑫航自動(dòng)化設(shè)備有限公司 

 PLC對模擬量信號的識別是通過PLC的模擬量輸入輸出模塊來完成的。模擬量輸入輸出模塊采用A/D轉(zhuǎn)換原理，輸入端接收來自傳感器或變送器的模擬信號，輸出端輸出的模擬信號作用于PLC的控制對象。PLC診斷模擬量故障的過程，實(shí)質(zhì)就是將在相應(yīng)A/D通道讀到的監(jiān)測信號的模擬量的實(shí)際值與系統(tǒng)允許的極限值相比較的過程。如果比較的結(jié)果是實(shí)際值遠(yuǎn)離極限值，則表明軋鋼生產(chǎn)設(shè)備對應(yīng)的受監(jiān)控部位處于正常狀態(tài)，如果實(shí)際值接近或達(dá)到極限值，則為不正常狀態(tài)。判斷故障發(fā)生與否的極限值根據(jù)實(shí)際系統(tǒng)相應(yīng)的參數(shù)變化范圍確定，利用PLC上的模擬量設(shè)定開關(guān)可精確設(shè)置該極限值。

Foxconn Lüfter Kabel ca.25cm Maxdata MPL3200 FL02 Neu

Freisprechanlage FUNLINE II Sony Ericsson T28s T 28 s Handy Auto Mobil efon

1 Paar Rack Halterung links rechts l/r 1U 1HE 4,4 cm (1.75'') Dell 3324 schwarz

Dell Hard Drive Blank Poweredge schwarz X2419 3.5 FS30

Dell PowerEdge 2550 Memory FAN Headsink 02F088 N23

Freisprechanlage FUN LINE II Nokia 6110 6120 6130 6140 6150 6160 6170 6180 NEU

TCM Magic-Push-Up-BH 80B 6 Tragvarianten wei? Push up BH NEU Versandfrei

12 Rollen Paketklebeband Kleberollen Packband Packfilm transparent 66m

12 Rollen Paketklebeband Kleberollen Packband Packfilm klar 66m

Hochwertiges Klappmesser G1208009 Messer Klinge 8cm lang + Stoffbeu VKF NEU

HD Deckel 2R033 für Dell SX 260 SX 270 SX260 SX270 HDD Halterung Versandfrei

TV Adapter Set Antenne TV Splitter & 2 Adapter NEU Versandfrei

Hochwertiges Klappmesser G1208005 Messer Klinge 8cm schwarz +Stoffbeu VKF NEU

HP Compaq HDD Hard Drive Carrier 177986-001 349471 349469-1 349469 8,9cm (3.5")

Automatik Schuhmaster der Renner NEUWARE OVP Versandfrei

Hochwertiges Klappmesser G1208008 Messer Klinge Holzgriff +Stoffbeu VKF NEU

Hochwertiges Klappmesser G1208010 Messer Klinge Holzgriff + Stoffbeu VKF NEU

Hochwertiges Klappmesser G1208011 Messer Klinge Holzgriff + Stoffbeu VKF NEU

Hochwertiges Klappmesser G1208007 Messer Klinge 7,5cm Holzgriff + Beu VKF NEU

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DVB-T Stabantenne mobil DVB T Antenne Magnetfu? Neu Versandfrei

EAXUS verslbare Tischleuchte Tisch Leuchte mit 12 LEDs silber schwarz OVP NEU

5 Stück Reise- Netzadapterstecker UK Adapter auf EU- / EURO -Stecker schwarz NEU

Hochwertiges Klappmesser G1208006 Messer Klinge 8cm lang + Stoffbeu VKF NEU

Hochwertiges Klappmesser G1208004 Messer Klinge 8cm lang gold + Beu VKF NEU

Hochwertiges Klappmesser G1208002 Klinge geschwungen 8cm lang + Beu VKF NEU

Trust 510DS MINI NOTEBOOK DOCKING Station OVP VK36

5 Stück Foxconn CPU Kühlerhalterung Retention Module für In Sockel 478 NEU

1 Rolle Stretchfolie transparent klar 20mμ L 300m B 500mm Folie Handstretchfolie

Maxdata 304006 S3057011003 5 in 1 CardReader CF MMC SD MS SM 5-pin schwarz NEU

5 Stück Reise- Netzadapterstecker UK Adapter auf EU- / EURO -Stecker wei? NEU

HAMA Starter Set Away für Nintendo DSi Schutzfolien Tochpens Tasche schwarz NEU

FSC Fujistus Siemens Li-ion Akku FLX-BP2 CP187503 LOOX FLX3A VK02 NEU

Original FSC Fujitsu Siemens Akku FLX-BP2 LOOX FLX3A FLX3AW NEU

66pin AGP MODULE SM5041M16IN3 4MB J07

3 Stück Reise- Netzstecker UK Adapter auf EURO Stecker schwarz Versandfrei NEU

Musik Weihnachtsmann Santa singend USB Batterie 25cm gro? Weihnachten OVP NEU

1 Paar 2 Stück HP Laufwerkschienen 3.5 94V0 2TT-702S-0001 für Vectra VL 420

1 Paar (L/R) FS Laufwerksschienen HDD Scenico P320

1 paar Fujitsu Siemens Laufwerksschienen K668-C68 K668 C68 für Scenico P320

Philips TDA4841PS VA9ED0 DS02455 integrierter Schaltkreis Maxdata S1217020047

TV Adapter Set Antenne TV Splitter &2 Adapter Neu VKF

Toshiba PA1302U-1PMS 12 Schutzfolien 54x75mm VK35 NEU

Toshiba PX1147E-1PCA Ledertasche PocketPC e400 VKF NEU

Santa Claus Weihnachtsmann singt mit Gitarre 24cm gro? USB Weihnachten OVP NEU

Card Reader 6in1 USB intern 8,9cm AN14 AN17 FS88 Versandfrei

Enermax Ultra-Cool Extra Silencer HDD UC-003D4FS Festplatten Kühler Rahmen NEU

Edles Klappmesser schwarzer Einhandgriff Holzoptik Taschenmesser + Beu NEU

Hochwertiges Klappmesser G1208008 Messer Klinge 7,5cm lang Holz +Stoffbeu NEU

Hochwertiges Klappmesser G1208007 Messer Klinge 7,5cm lang hellbraun +Beu NEU

Hochwertiges Klappmesser G1208011 Messer Klinge 8 cm lang Holz + Stoffbeu NEU

Toshiba PA3182U-1ETC Stylus Packs e310 OVP VKF

Hochwertiges Klappmesser G1208012 Messer Klinge 7,5cm lang Holz +Stoffbeu NEU

Hochwertiges Klappmesser G1208010 Messer Klinge 8cm lang Holz + Stoffbeu NEU

Klappmesser Einhand Holzgriff hellbraun Taschenmesser Messer outdoor +Beu NEU

Klappmesser edler schwarzer Griff Holzoptik Outdoor Taschenmesser + Beu NEU

Edles Klappmesser mit goldenen Metallgriff Gold Taschenmesser Messer +Beu NEU

Edles sch?nes Klappmesser Taschenmesser Outdoor Messer mit Stoffbeu NEU

Conceptronic 4 port USB 2.0 Hub Erweiterung C4USB2 + Netzteil OVP NEU

Hochwertiges Klappmesser G1208003 Messer Klinge 7,5cm lang hellbraun +Beu NEU

Edles Klappmesser sch?ner Natur Holzgriff Taschenmesser Outdoor +Stoffbeu NEU

Edles Klappmesser mit Holzgriff hellbraun Messer Taschenmesser + Stoffbeu NEU

1 Paar Laufwerkschienen 21-807007 Primergy TX200

3 Stück Foxconn CPU Kühlerhalterung Retention Module für In Sockel 478 NEU

Teccus TAFS 1 S Sicherungen 0,315A 0,63A 1,0A 1,25A VKF

Hochwertiges Klappmesser G1208002 Klinge geschwungen 8cm lang + Stoffbeu NEU

Edles Klappmesser Einhandgriff Taschenmesser Outdoor + Stoffbeu NEU

Edles Klappmesser edler Holzgriff Braun Taschenmesser Messer Outdoor +Beu NEU

Edles Klappmesser Dunkelbrauner Holzgriff Taschenmesser Outdoor + Beu NEU

Klappmesser edler schwarzer Einhandgriff Holzoptik Taschenmesser + Beu NEU

Hochwertiges Klappmesser G1208006 Messer Klinge spitz 8cm lang + Stoffbeu NEU

Heaveny MP3- MP4-Player Handy Halterung fürs Auto beige Versandfrei

Hochwertiges Klappmesser G1208004 Messer Klinge 8cm lang gold + Stoffbeu NEU

Hochwertiges Klappmesser G1208009 Messer Klinge 8cm lang + Stoffbeu NEU

Teccus TAFS 2 S Feinsicherungen 2A 2,5A 3,15A 10A VKF

DVB-T Stabantenne mobil DVBT Antenne Magnetfu? Neu

FSC Fujitsu Siemens GZ02 P69 (400) fusselarmes Tuch zur Reinigung (5 Stück) NEU

1 Paar 2 Stück Laufwerkschienen 21-807007 Fujitsu Siemens Primergy TX150 TX200

Mini Taschenlampe Schlüsselanh?ngerformat 1LED drehbarem Kopf NEU Versandfrei

Sharkoon Lüfter Geh?uselüfter Schutzgitter FAN Grill Scream 80 mm silber NEU

Hochwertiges Klappmesser G1208005 Messer Klinge 8cm Griff schwarz + Beu NEU

Leunic Magic Box Print File Sharing Device switch TR40

Sharkoon Lüfter Schutzgitter FAN Grill Atomic Atom UV 80mm Casemod leuchtet NEU

Philips TDA4856 VARW90 DS0349 3 integrierter Schaltkreis Maxdata S1219010020 NEU

Smartphone Handy Digitalkamera Tasche schwarz H09 NEU

3 Stück Reise- Netzadapterstecker UK Adapter auf EU- / EURO -Stecker wei? NEU

Schutzgitter Lüftergitter 90mm 92mm Lüfter Gitter AF09

3 Stück Reise- Netzadapterstecker UK Adapter auf EU- / EURO -Stecker schwarz NEU

Teccus TAFS 1 S Feinsicherungen 0,315A 0,63A 1,0A 1,25A

Teccus TAFS 2 S Feinsicherungen 1,6A 2A 2,5A 3,15A 10A

Conceptronic 4 ports USB 2.0 Hub C4USB2 +NT

Reise- Netzadapterstecker UK Adapter auf EU- EURO -Stecker wei? NEU Versandfrei

Reise- Netzadapterstecker UK Adapter auf EURO Stecker schwarz Versandfrei NEU

PQI MEABR222JA 256MB DDR2 RAM Speicher PC2-4200 533MHz Versandfrei

Original FSC Fujitsu Siemens Li-ion Akku FLX-BP2 CP187503 LOOX FLX3A FLX3AW NEU

Dell 71JMG 284VW HDD Blendrahmen Tray Rahmen 8,89cm (3.5 Zoll) 1HE schwarz

Toshiba PX1157E-1PAC Stylus 4-Pack 4Stifte e800 OVP NEU

Toshiba PX1157E-1PAC Stylus 4-Pack e400 OVP NEU

Toshiba PA1302U-1PMS PA1302U 1PMS 12 Schutzfolien 54x75mm für PDA Pocket PC NEU

Mini Taschenlampe Schlüsselanh?ngerformat 1LED drehbarem Kopf +Gliederkette NEU

Toshiba PA3182U-1ETC Stylus Packs e310 OVP NEU

Foxconn CPU Kühlerhalterung Retention Module für In Sockel 478 Mainboards NEU

Toshiba PX1147E-1PCA Ledertasche PocketPC e400 NEU

Heaveny MP3- MP4-Player Handy Halterung fürs Auto NEU

Mitsubishi M52741SP-A M52741SP A IC Linear 38-pin Chip Monitor NEU

Standard CPU Kühlerhalterung Halterung Retention Module für In Sockel 478 NEU

Toshiba 3 Stifte PA3182U-1ETC Stylus Packs e740 OVP NEU

Heaveny MP3 - MP4 - Player Handy Halterung fürs Auto Car beige NEU

Reise- Netzadapterstecker UK Adapter auf EU- / EURO -Stecker wei? NEU

Reiseadapter Netzadapterstecker UK Adapter auf EU- / EURO -Stecker schwarz NEU

MDC vacuum model KAV-150-P-SP angle valve

MDC 1-1/2in Pneumatic Vacuum Angle Valve 311074 KAV-150-P

MDC KAV-150-P-OPT2 Stainless Steel Pneumatic Vacuum Angle Valve 1-1/2" Used

NEW MDC KAV-150 ANGLEVALVE NW40 HV MANUAL 310074 FACTORY SEALED BOX

LOT OF 2 MDC KAV-150-P HV PNEUMATIC ANGLE VALVES NW40 1-1/2"

MDC KAV-150-P-OPT 311074-02 Angle Valve NW40 HV Vacuum Pneumatic Magnetic Reed

AMAT MDC KAV-150-PSP Vacuum Right Angle Valve 1-1/2" NPT Pneumatic NW40/Warranty

MDC Vacuum Products KAV-150-P-OPT Pnuematic Angle Valve

MDC 311074-02 Angle Valve Model KAV-150-P-02( NIB)

MDC Vacuum Valve NW 40 Model # KAV-150-p

MDC VALVE ,TURBO ISO W/STEM-MDC K40 KAV-150-PSP

Lot of 2 MDC KAV-150-P Vacuum Angle Valve

MDC Vacuum Products Corporation KAV-150-P-02 P/N 95-53907 Angle Valve

MDC 311074-02 Angle Valve Model KAV-150-P-02 NIB

8193 MDC KAV-150-P-02 VACUUM PUMP VALVE 0-125 PSI

MDC KAV-150-P Pneumatic Bellows Valve 311074-10

MDC Vacuum Products Corporation KAV-150-P-OPT2 P/N 96-75006-E Angle Valve

MDC Vacuum Products Corporation KAV-150-P-02 P/N 95-40809 Angle Valve B

MDC Vacuum Products Corporation KAV-150-P-02 P/N 95-40809 Angle Valve

Stainless Steel MDC 3" Angle Pneumatic Vacuum Valve KAV 150P AMAT Centura New

Manual Stainless Steel MDC KAV-150, 90° Vacuum Valve with Conflats L652

MDC KAV-150-P Pneumatic Angle Valve AMAT 3870-01141 Used Working

MDC KAV-150-P-10 Pneumatic Angle Valve Used Working

MDC 311074-10 Pneumatic Angle Valve KAV-150-P lot of 7 working

MDC KAV-150-PSP VACUUM VALVE FACTORY REFURBISHED

APPLIED MATERIALS (AMAT) 3870-01441 MDC KAV-150-P311074 Valve AIR-ACT Open SPRG

APPLIED MATERIALS (AMAT) 3870-01441 MDC KAV-150-P311074 Valve Vacuum Bellows AI

MDC Vacuum Angle Valve KAV-150-P

MDC VACUUM - KAV-150-P-OPT - HIGH VACUUM VALVE MODEL KIV 200 P

MDC KAV-150-P Inline Valve 311074 Used

MDC KAV-150-P Pneumatic Angle Valve Lot of 3 Used

Linear Bearing Used MR12MN+330L CPC LM Guide THK RSR12 IKO LWL12 2Rail 4Block

Actuator Unit Used Parts 230mm Stroke Ground Ball Screw/GTR1205C5/SR15W/CNCRoute

Rolled Ball screw STK1605+780mm Used SBC Linear THK BTK1605 linear bearing

Miniature Rolled ball screw Used MTF1002+133L Linear Motion LM Bearing

SHS35-1580mm THK Used LM Guide actuator linear rail bearing for maintenance Rail

Actuator Unit Parts Used / Ball Screw/Support/ LM Guide/Linear Bearing/CNC Route

LS15AL+1250mm NSK Used LM Guide THK SR15W Linear Bearing 2Rail 4Block Lightweigh

NB Linear Motion Actuator Used BG2605B-200H 0805 Ground Ball screw THK KR Series

BGX15BN+400mm Used LM Guide 2Rail 4Block THK SR15W Linear bearing Lightweight

W1003FA-3P-C3Z Used NSK Precision Ground Ball Screw Linear Bearing THK CNC Route

SR20W2UU+2598mm Used THK Linear long Actuator Bearing 2Rail 4Block NSK LM Guide

Ground Used Ball Screw SFIR1605+475mm Right/Left Helix Support AK12+AF12 Linear

IKO Linear Bearing MES15+640mm Used LM Guide THK SR15W 2Rail 4Block NSK 3D Print

 THK Miniature Linear Bearing RSR9ZM2UU+135mm Used LM Guide 2Rails 4blocks LU09

LM Guide Linear Bearing THK Used SR20V+580mm 2Rail 4Block CNC Route 3D Printer

HSR15AUU+248mm Used Rexroth Bosch LM Guide 2Rail2Block CNC Route Linear Bearing

Linear Bearing THK Used SR15W+1278mm Raydent LM Actuator Bearing CNC Route 2R6B

Linear Actuator Parts Used GG2020+1245mm HSR20R+1240 THK LM Guide Bearing AK12

NSK Rolled Ball Screw Used RNFTL1808+350mm AK12+AF12 THK Linear Bearing LM Unit

MONOCARRIER NSK Used Linear Actuator LM Guide Ball screw 300mm stroke MCL06030H 

ML12+425mm IKO Used Linear Bearing LM Guide Miniature System THK RSR12 NSK 2Rail

MR15MN+550mm Used Linear Bearing CPC THK RSR15 2Rail 4Block Mini Lathe LM Guide

MNN15-G1+790mm SCHNEEBERGER Used Linear Bearing 2Rail 4Block RSR15N THK LM Guide

NSK Ground Ball Screw Used W1503-379K1X-C5T AK12 for linear actuator

16221 SR15W+1000mm Used Bosch Rexroth LM Guide 2Rail 4Block CNC Route Linear Bea

HSR25-740mm LM Guide Used THK Rail 30mm pitch 2Rails for HSR25R,HSR25A CNC route

LM Guide Hiwin HGH15C+1120mm Used Linear Bearing THK HSR15R 2Rail 4Blocks CNC

LWES15+1075mm Used IKO Linear Bearing LM Guide THK SR15W 2Rail 4Block lightweigh

LM Guide 1622 8 HSR20R+820mm BOSCH Rexroth Used Linear Bearing THK 2Rail 4Block

VFA1520C7+600mm NSK Used Ground Ball Screw Linear Bearing THK CNC Route

LS20AL+1610mm 2Rails 4Blocks USED NSK LM GUIDE THK SR20W Lightweight motion

GTR1510+1090mm ISSOKU Rusted Ground Ball Screw THK BNK1510 DIY CNC Lathe

MGN15C+260mm HIWIN Used Miniature LM Guide MGNR THK RSR15 Linear bearing 2R,4B

LM Guide MHD12+1000mm IKO Used Miniature Linear Bearing THK HSR12RM 2Rail 6Block

LWLFG42B+190mm IKO Used LM Guide THK, NSK Linear Bearing 2Rail 2Block CNC Route

LBF25UU+610mm Used Ball Spline THK NSK NB IKO Linear Bearing CNC Route LM

LS15AL+1026mm NSK Used LM Guide THK SR15W Linear Bearing 2Rail 4Block CNC Route

Actuator Parts MTF1002+133L Used Rolled Ball Screw RSR9ZM+94L LM Guide Bearing

LM Bearing Used LWHS15+1430mm IKO Linear Guide Lightweight Motion 1Rail 3Block

HSR15A+520L Used THK LM Guide 2Rail 4Block Stainless NSK Linear Bearing CNCRoute

SR20-1480L maintenance LM Guide Rail Used THK Linear Bearing for continuation

Miniature Ball Screw Used BNK0801+115mm THK Japan Support Unit EK06+EF06 NSK

GTR1520+466mm Ground Ball Screw ISSOKU GE1520 NSK VFA1520 CNC Router Bearing

HSR25A+868mm R165121320 Used Bosch Linear Bearing 2Rail 4Block CNC RouM Guide

Actuator Unit Used Parts 115mm Stroke RNTFL1006 Ball Screw/LE09+180L NSK Linear 

Linear Guide actuator THK HSR20LA+900mm 2Rail 4Block Used Smooth Bearing DIY CNC

DEL-Tron Used RE-1 Miniature Cross Roller Slide Unit THK VRT linear motion Inch

HSR15A2UU+408mm Used Rexroth Bosch LM Guide 2Rail4Block CNC Route Linear Bearing

RSR9W+180mm Rexroth STAR R04338 Used LM Guide THK NSK Linear Bearing 2Rail4Block

RSR15W2UU+1345mm R04435 Bosch Rexroth Used LM Guide THK NSK Linear Bearing 1Rail

NSK Linear bearing Used LS15ALK1+880mm THK SR15W LM Guide CNC Lathe Route Motion

LW17EL+190-2 USED NSK LM Guide THK HRW17CA Linear Bearing 1Rail 2Block Wide Low

Ground Ball Screw Used BNK2010+620mm THK Linear Bearing NSK Tsubaki CNC Route

GE2005+348mm TOSOK Used Ground Ball Screw Linear Bearing CNC Route KURODA,ISSOKU

Cartesian Linear Actuator 310mm stroke Robot LM System SRS12W GE1220 Ground Ball

SR15W2UU+750mm Used Rexroth Bosch LM Guide 2Rail 4Block CNC Route Linear Bearing

LE15AL+314mm NSK Used Wide Linear Bearing THK RSR15W 2Rail 4Block CNC Route

HSR15A2UU+340mm Used THK Linear Bearing 2Rail 4Block LM Guide NSK CNC Route

LRX20+750mm Used IKO Roller LM Guide Linear Bearing 2Rail 4Block CNC Route Hole

LM Guide IKO Used LWL7B+134mm 2Rail 4Block THK RSR7 NSK LU07 Miniature Bearing