BEIJER QSI QTERM-K65

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   PLC采用循环扫描的工作方式，在PLC中用户程序按先后顺序存放

，CPU从条指令开始执行程序，直到遇到结束符后又返回条

，如此周而复始不断循环。PLC的扫描过程分为内部处理、通信操作

、程序输入处理、程序执行、程序输出几个阶段。全过程扫描一次

所需的时间称为扫描周期。当PLC处于停状态时，只进行内部处理和

通信操作服务等内容。在PLC处于运行状态时，从内部处理、通信操

作、程序输入、程序执行、程序输出，一直循环扫描工作。

      1．输入处理

      输入处理也叫输入采样。在此阶段，顺序读入所有输入端子

的通端状态，并将读入的信息存入内存中所对应的映象寄存器。在

此输入映象寄存器被刷新。接着进入程序执行阶段。在程序执行时

，输入映象寄存器与外界隔离，即使输入信号发生变化，其映象寄

存器的内容也不会发生变化，只有在下一个扫描周期的输入处理阶

段才能被读入信息。 

  HYDAC FLNDBN3HC160DDE10A1.0 CHANGE-OVER INLINE HYDRAULIC FILTER D563816

PALL UR219CC12 04JNYR85 HYDRAULIC FILTER 0-600PSI 1IN NPT D583937

PALL UR219CC12 04J69Y645 HYDRAULIC FILTER 0-41PSI 3/4IN NPT D583974

VICKERS OFP 35 S 11 737322 HYDRAULIC FILTER D518014

VICKERS OFP 35 S 11 737322 HYDRAULIC FILTER D518013

PUROLATOR PI 2130-58-NBR DUPLEX IN-LINE HYDRAULIC FILTER ASSEMBLY D594893

PTI DP83-250-GF-B HYDRAULIC OIL FILTER ELEMENT D591109

PALL HC8904FKS35HY213 ULTIPOR III HYDRAULIC FILTERS D513178

PALL HC8904FKS35HY213 ULTIPOR III HYDRAULIC FILTER D513179

CUNO 50 AUTO-KLEAN STAINLESS HYDRAULIC FILTER CARTRIDGE D587000

STAUFF SF-045G10B-TN/B/V/2 1-1/4 IN NPT HYDRAULIC FILTER D527835

PARKER 909308 74W HYDRAULIC FILTER ELEMENT D593025

PTI F7F081HF-BP0KHX DOUBLE HYDRAULIC FILTER SYSTEM 350PSI 81GPM 1-1/4IN D596575

PARKER 932563 MODUFLOW IL2/RF2 HYDRAULIC FILTER ELEMENT 25W D588381

PALL HZ9650B20DPUBLT ULTIPOR MICROMETRE ABSOLUTE FILTER ASSEMBLY 1-1/4IN D591477

SCHROEDER NFN301NNZX3BMS12LC HYDRAULIC FILTER SER A 3/4IN NPT D584016

PALL HZ8640A20 DUPLEX HYDRAULIC FILTER ASSEMBLY D550130

PALL HH8640A20 ROTOLOK DUPLEX HYDRAULIC FILTER ASSEMBLY D550105

PALL 8640 ROTOLOK DUPLEX HYDRAULIC FILTER ASSEMBLY D550104

SCHROEDER NFN301NNZX3BMS12LC HYDRAULIC FILTER SER A 3/4IN NPT D584011

HYCON RFBNHC330G10B1.1/5 RETURN LINE HYDRAULIC FILTER 2IN NPT D584217

PALL 8640 DUPLEX HYDRAULIC FILTER ASSEMBLY D551766

PALL HH9661A24UTTK8T1 HYDRAULIC FILTER 1-1/2IN NPT 6000PSI D595877

PALL HC0653FCG39Z HYDRAULIC FILTER D538279

PARKER HN15L-4CG COALESCING HSG W/ DIFF PRESS GAUGE 500PSI 3/8IN NPT D585705

HYDAC 1267651 0250 DN 010 BH4HC /-V BETAMICRON 4 FILTER ELEMENT D566033

HYDAC 1282782 0250 DN 003 BH4HC /-V BETAMICRON 4 FILTER ELEMENT D566037

SMC EM601H-010N HYDRAULIC FILTER ELEMENT D593478

EATON 300265 01.E 600.10VG.30.E.P HYDRAULIC FILTER ELEMENT D589948

HYDAC 1267651 0250 DN 010 BH4HC /-V BETAMICRON 4 FILTER ELEMENT D566035

PARKER 50P1 10CML 50PP 1 81 TELL TALE 1-1/2IN NPT HYDRAULIC FILTER D565285

PARKER 50P1 10Q ML 50PP 181 TELL TALE 1-1/2 IN NPT HYDRAULIC FILTER D565286

MITSUBISHI EM401H-105N 3A177227X009 HYDRAULIC SUCTION FILTER D586562

VOKES C6370012 MICROFELT XL OIL LUBE FILTER ELEMENT D563853

PALL HH8600A12KSRBST 3/4 IN NPT HYDRAULIC FILTER D565110

PARKER 51P 1 10C M 50PP 1 81 TELL TALE 1-1/2 IN NPT HYDRAULIC FILTER D565280

SCHRODER SKB2-11P-1 FLUID FILTER ELEMENT D568970

PALL HC8310FKP16Z ULTIPOR III HYDRAULIC FILTER D538156

VOKES C6370012 MICROFELT XL OIL LUBE FILTER ELEMENT D563867

DES-CASE DC-4 DESICCANT BREATHER D592285

TAISEI KOGYO P-UL-12A-40UW HYDRAULIC FILTER ELEMENT D586140

PARKER 923041 HYDRAULIC FILTER ELEMENT D591882

PARKER 95S6 BALSTON STAINLESS PROCESS ANALYZER SAMPLE FILTER D592113

PALL HC8310FKP16Z ULTIPOR III HYDRAULIC FILTER D538158

HY-PRO HP101L36-6MB HYDRAULIC FILTER ELEMENT D541576

ATLAS COPCO 1621962703 10-3/4 IN 1-1/4 IN NPT HYDRAULIC FILTER D578008

KAYDON A910303 K3000 HYDRAULIC FILTER D532627

PALL HC2618FCS36H 36 IN HYDRAULIC FILTER D537929

PALL HC8300FKP39Z ULTIPOR III HYDRAULIC FILTER ELEMENT D543563

HP101L36-6MB HYDRAULIC FILTER ELEMENT D541578

PALL HC8300FKP39Z ULTIPOR III HYDRAULIC FILTER ELEMENT D543564

LIQUID HANDLING SPECIALISTS LF-4000-PRE-TVAWC HYDRAULIC FILTER D531840

OMT HPM622*NR2 HIGH PRESSURE 1-1/2 IN NPT HYDRAULIC FILTER D543102

OMT HPM621-NR1/EL 6000PSI 1-1/4 IN NPT HYDRAULIC FILTER D543085

INTERNORMEN 300104 HYDRAULIC FILTER ELEMENT 01.E 90.10VG.30.E.P. D592410

INTERNORMEN 300074 HYDRAULIC FILTER ELEMENT 01.E 60.10VG.HR.E.P. D592416

FILTER MART F9021-8K3B HYDRAULIC FILTER ELEMENT D592367

PARKER 15CN110Q15654 HYDRAULIC FILTER D584421

INTERNORMEN 300367 10 MICRON HYDRAULIC FILTER D583280

INTERNORMEN 300156 HYDRAULIC FILTER ELEMENT 10MICRON D592296

GARDNER DENVER 2118507 HYDRAULIC FILTER 5/7.5/10HP GD D578821

HY-PRO HP101L18-6MB HYDRAULIC FILTER ELEMENT D541575

HYDAC 1276764 HYDRAULIC FILTER BOWL ASSEMBLY REPLACEMENT PART D536866

FLUITEK P 4618-10A 18 IN HYDRAULIC FILTER D537926

VELCON SO-430V HYDRAULIC FUELING FILTER SEPERATOR ELEMENT D524707

PARKER 6QP30-143 X 1 FINITE GR 6 COALESCER HYDRAULIC FILTER ELEMENT D587118

HYDAC 1276764 HYDRAULIC FILTER BOWL ASSEMBLY REPLACEMENT PART D536865

NUGENT 01-361-023 28 IN HYDRAULIC FILTER ELEMENT D541058

NORCO PRODUCTS NM 15D S63 010 3/3 7 3/8IN NPT HYDRAULIC FILTER D526917

HY-PRO HP16DHL8-3MV HYDRAULIC FILTER ELEMENT D557772

UFI EPB32NFC HYDRAULIC FILTER D584821

M370679 16IN HYDRAULIC FILTER D583521

PARKER 10CF08-026 FINITE HYDRAULIC FILTER ELEMENT D581732

NORCO PRODUCTS MSP-2-100 HYDRAULIC FILTER ELEMENT D596716

HYDAC 0250-DN-003-BN4HC BETAMICRON 4 PLUS HYDRAULIC FILTER ELEMENT D556519

PALL HC2163FKN18H ULTIPOR III HYDRAULIC FILTER D563230

NUGENT 01-388-013 18 IN HYDRAULIC FILTER ELEMENT D538406

INTERNORMEN 309971 01.E 240.40G.30.E.V HYDRAULIC FILTER ELEMENT D550006

LHA SEH-50-2-100 HYDRAULIC STRAINER 9.8 IN 2 IN NPT D576557

PALL HC2163FKN18H ULTIPOR III HYDRAULIC FILTER D562766

LHA 1-1/4 IN NPT HYDRAULIC FILTER D557217

HYDAC 02055975 HYDRAULIC FILTER ELEMENT D592594

LUBE-POWER 23592 10001622 LI-0005 HYDRAULIC FILTER ELEMENT D556327

BALDWIN BT8873 PUREFORCE HYDRAULIC FILTER D590577

HY-PRO HP21L8-15MV HYDRAULIC FILTER ELEMENT D553564

PARKER 95S6 BALSTON STAINLESS PROCESS ANALYZER SAMPLE FILTER STAINLESS D540968

PARKER 927723Q HYDRAULIC FILTER ELEMENT D570471

FILTER MART 28-2147 HYDRAULIC FILTER D583308

PARKER 930119Q 20Q RT 8IN HYDRAULIC FILTER ELEMENT D583915

HYDAC 0140D010BH3HC/V HYCON 02073314 HYDRAULIC FILTER D546397

HY-PRO HP419NL13-1MB HYDRAULIC FILTER ELEMEMT D541808

NUGENT 01-361-023 28 IN HYDRAULIC FILTER ELEMENT D538408

DONALDSON P170546 DURAMAX 14.2 IN HYDRAULIC FILTER D544584

SCHROEDER KZ10 9IN RETURN LINE HYDRAULIC FILTER ELEMENT D591549

HY-PRO HP21L8-6MV ELEMEMT HYDRAULIC FILTER D553433

DONALDSON P170546 DURAMAX 14.2 IN HYDRAULIC FILTER D544583

PARKER 10S-40SA-M-3-CC-3-78 TELL TALE 1 IN NPT HYDRAULIC FILTER D548657

GARDNER DENVER 2118505 OIL FILTER 5/7.5/10/15HP D578564

PALL HC7500SKN8H ULTIPOR III HYDRAULIC FILTER D580091

MAIN FILTER MF0062273 R120C10B WINDER HYDRAULIC FILTER D584679

LENZ 49-10-100 HYDRAULIC FILTER STRAINER 1IN NPT 10GPM 100MESH D592358

GRESEN 3276-001 20300G1 HYDRAULIC FILTER 10 MICRON 7 IN D576561

DONALDSON SPE-50-10 HYDRAULIC FILTER ELEMENT D586123

STAUFF SUS-A-088-N20F-195-125-0 HYDRAULIC FILTER ELEMENT 1-1/4IN NPT D587216

HY-PRO HP21L8-2MV HYDRAULIC FILTER D552776

PALL HC9600FKP13H ULTIPOR III HYDRAULIC FILTER CARTRIDGE D577494

GRESEN 8074-001 HYDRAULIC FILTER ELEMENT 3 MICRON D576515

MAIN FILTER MF0058023 25-MICRON 1-12UNF HYDRAULIC FILTER D555614

NUGENT 01-388-013 18 IN HYDRAULIC FILTER D538404

CATERPILLAR CAT 1R-0719 HYDRAULIC OIL FILTER D568931

CATERPILLAR CAT 1R-0719 HYDRAULIC OIL FILTER D592260

CATERPILLAR CAT 1R-0719 HYDRAULIC OIL FILTER D592261

BALDWIN P20-HD FULL-FLOW LUBE OIL FILTER ELEMENT D592279

SCHROEDER K10 HYDRAULIC FILTER ELEMENT 10MICRON D592294

FRAM CH336PL HYDRAULIC FILTER ELEMENT D568938

UFI ERA33NFC HYDRAULIC FILTER ELEMENT D585067

LENZ 49-5-100 HYDRAULIC SUMP SUCTION STRAINER FILTER 3/4IN NPT D585326

FRAM C1666 HYDRAULIC FILTER CARTRIDGE ELEMENT D569208

CATERPILLAR CAT 1R-0732 HYDRAULIC OIL FILTER D542079

EATON V4051B3C05 VICKERS HYDRAULIC FILTER ELEMENT D555132

PALL HC2618FKS36H 36 IN HYDRAULIC FILTER D538179

NUGENT 01-388-013 18 IN HYDRAULIC FILTER D538405

LHA SPE-60-10 HYDRAULIC BREATHER FILTER 10 MICRON D566735

EL-286U HYDRAULIC FILTER ELEMENT D587139

HYSTER 277490 HYDRAULIC FILTER D557785

BALDWIN PT98-10 HYDRAULIC FILTER D583258

DONALDSON P164351 SCREW ON HYDRAULIC FILTER D583327

CATERPILLAR CAT 1R-0732 HYDRAULIC OIL FILTER D583514

UFI ERA33NFC HYDRAULIC FILTER ELEMENT D584701

CATERPILLAR CAT 9T-9054 HYDRAULIC FILTER ELEMENT D568168