IC697ACC775 IC697ACC775  

*個X0的上升沿，將使Y0線圈接通并自鎖。同時，CT100對X0 作減1 計數(shù)。X0的第二個上升沿到來時對Y0不起作用，但CT100對其計數(shù)，故C100常開閉合使R0線圈接通。下一個掃描周期，斷開了的R0常閉觸點使Y0線圈斷開并打開自鎖；閉合了的R0常開觸點使CT100復位，進而C100常開觸點斷開使R0線圈斷開，整個系統(tǒng)復位等待第三個X0的上升沿……。圖中R9013是PLC初始閉合繼電器觸點，在系統(tǒng)中起初始復位作用。因為CT100默認為保持型，Y0為非保持型，在Y0輸出狀態(tài)下電源斷電或PLC由運行轉為編輯后Y0斷開而CT100保持計數(shù)值“1"。若梯形圖中去掉R9013常開觸點，在系統(tǒng)再恢復運行時*次按動X0將不能啟動系統(tǒng)，只有在第二次按動X0時才能啟動系統(tǒng)。

分析可見，該控制系統(tǒng)輸出信號Y0的頻率是輸入信號X0頻率的1/2，可稱其為二分頻電路。在工程應用中可以作為，用一個不帶自鎖的控制按鈕控制一臺電機啟動/停止的基本控制電路。

鄭娟萍

廈門仲鑫航自動化設備有限公司

 現(xiàn)在許多小型的PLC都或多或少地提供了掉電保持寄存器，以便在PLC斷電的時候，保存用戶想要保存的數(shù)據(jù)。但大多數(shù)時候，PLC制造廠商為了節(jié)約成本，不可能提供足夠數(shù)的掉電保持寄存器供系統(tǒng)設計人員使用，所以當被調整的數(shù)據(jù)項目超過PLC內部的掉電保持寄存器的數(shù)目的時候，我們不得不減少被調整的數(shù)據(jù)項目（固定或不用）或者購買具有更多掉電保持寄存器數(shù)目的PLC，這樣的話，就使得生產機械缺乏靈活性和適應性，從而降低產品檔次或增加成本。1)      當PLC 為RUN方式時，K20被送入預置值寄存器SV100中，如果此時復位行為OFF，則SV100中的K20又被送到經過值寄存器EV100中。

2)        每檢測到一個計數(shù)器邏輯行X0的上升沿（OFF→ON的狀態(tài)變化），EV100中的數(shù)值減1計數(shù)。

3)        當EV100中的數(shù)值減至“0"時，計數(shù)器C100的觸點動作并保持，即常開觸點閉合，常閉觸點斷開。

BEST POWER TECHNOLOGY CIRCUIT BOARD CARD 101073545.001 118400123 110720305

UNKNOWN BRAND NAME CIRCUIT BOARD CARD P-42470 P42470 CPA43909

UNKNOWN BRAND NAME CIRCUIT BOARD CARD P-43907 P43907 PA43903

HC INDUSTRIES H.C. PC CIRCUIT BOARD CARD 209447 REV. B

UNKNOWN BRAND NAME CIRCUIT BOARD CARD P-42469 P42460 A42910 45194

GE GENERAL ELEC BUS CONTROLLER INTERFACE IC660ELB901B

BAUMULLER NURNBERG TERMINAL CIRCUIT BOARD CARD 3.9428D 3-9428D 3-9428-D

HOFFMAN DOUBLE ENTRANCE DOOR ELECTRICAL ENCLOSURE W/ 115V FAN 90" X 36" X 24"

POSITRON NIM MODULE CIRCUIT BOARD CARD 912305/1H REV. 20

CROWN FORKLIFT CIRCUIT BOARD CARD 86386-3 863863

CROWN FORKLIFT COIL DRIVER CIRCUIT BOARD CARD 89205A 86385 REV D

CINCINNATI MILACRON SIEMENS CIRCUIT BOARD CARD 3-531-2983A 35312983A REV A

NO BRAND GENERIC CIRCUIT BOARD CARD PCB291 PRB292 REV. A

GENERAL ELECTRIC PC BOARD C200020-AP-G03 C200020APG03

LANCAST 100 BASE CIRCUIT BOARD 6700-741814-001 605505

ELECTRIC SYS ISOLATION AMPLIFER 4IA B-77042 4IAB77042

Burton Industries Power Circuit Board 513-411-006 513 411 006 Used

EUROTHERM AUTOMATION CIRCUIT BOARD AG173051-3 AG1730513 AE173051-3

UNKNOWN BRAND NAME CIRCUT BOARD CARD 583540-005 583540005

ELAV CIRCUIT BOARD CARD SF1500U SF-1500U SS-500-U SS500U

Reliance Electric 0-52002-2 Relay Card PLC MODULE

AMK RF504 Board Card Control 051185 Ruckfuhrung 1200

NSC RELAY CIRCUIT BOARD GN 25352 AD GN25352AD GN25351JS

EMERSON CIRCUIT BOARD CARD DRIVE 6230-4050 62304050 B6230-4050

NSC RELAY CIRCUIT BOARD ME 1752 AC ME1752AC ME1747JN

HEALD CIRCUIT BOARD CARD 35312866A 3-531-2866A

PL PRO-LOG CIRCUIT BOARD CARD 100320-C 100320C 100318XA 100319XA

GE GENERAL ELECTRIC CIRCUIT BOARD RELAY CARD 193X279AAG03 193X-279AAG03

K&T KEARNEY & TRECKER CNC CMUX CIRCUIT BOARD 1-20601 120601

TRUTZSCHLER SPC-A4 SPC-A4 SPCA4 9 490-82.230.002 AB 49082230002 NEW

K&T KEARNEY & TRECKER CNC CIRCUIT BOARD CARD 1-20432 127026 REV 1

LIEBERT INTERFACE CIRCUIT BOARD CARD 4C13451G1 4C13451G-1 REV 3

TS T S ENGINEERING CIRCUIT BOARD CARD ATAC PCB VER 7.9.2 TSE001-01 110V

K&T KEARNEY & TRECKER INPUT ISOLATOR CIRCUIT BOARD 1-21281 121281 REV 6

SSD DRIVES EUROTHERM DRIVE POWER CIRCUIT BOARD AH048626U002 048626

EUROTHERM SSD PARKER AC DRIVE CONTROL AH471152U700 471152

EMERSON CONTROL TECHNIQUES COMMUNICATIONS INTERCONNECT BOARD 1590-4105 REV C

MURATA CIRCUIT BOARD 7D3-E7520-50 7D3E752050

TRI-SEN SYSTEMS CIRCUIT BOARD 83-1107 831107 REV. G

NIMBUS CIRCUIT BOARD CARD PEC-083 PEC083 SIDE 2 ISS 1

EMERSON ARMATURE CONTROLLER CIRCUIT BOARD 2450-4109  24504109 REV. A 

SSD EUROTHERM DRIVE CIRCUIT BOARD CARD AH058529U001

PROCESS SYSTEM ANALOG I/O BOARD 501243-100 501243-200-N

MURATA MURATEC CIRCUIT BOARD 7D3-E7520-50 7D3E752050

TOSHIBA AC DRIVE INVERTER CIRCUIT BOARD CARD P6581160P1 P6581160P10

SIEMENS SNUBBER CIRCUIT BOARD CARD C98043-A1046-L3 C98043A1046L3

LEUKHARDT SYSTEMS SPE MIX 203 LS 810-203 CIRCUIT BOARD / CARD NEW

EUROTHERM AUTOMATION DRIVE POWER CIRCUIT BOARD AG173225-2 AG1732252 AK173225-2

APPLIED MOTIONS PRODUCTS CIRCUIT BOARD 1000-137 1000137 REV C 

EUROTHERM SSD PARKER POWER CIRCUIT BOARD CARD AH352935 352935 REV 3.2

EUROTHERM SSD PARKER AC DRIVE CIRCUIT CONTROL BOARD AH466703 466703

ATOS PLC ELECTRONIC DRIVER BOARD E-ME-A-01F EMEA01F

FANUC GE CPU MEMORY CIRCUIT BOARD CARD A16B-1211-0030/04 A16B1211003004

EWC CONTROLS ULTRA-ZONE CONTROL SYSTEM CIRCUIT BOARD CARD NCM-300 NCM300

EFD FIPX CIRCUIT BOARD CARD

K&T KEARNEY & TRECKER ICRTC CIRCUIT BOARD CARD 810-21284-01 8102128401

CINCINNATI MILACRON CNC APC16 CIRCUIT BOARD CARD 3-533-0660G 35330660G

YORK CIRCUIT BOARD CARD 031-01348-000 031-01348 REV A

TEXAS INSTRUMENTS UTILITY MULTIBUS UTILITY CIRCUIT BOARD UTB3 2594041-0001 REV A

Iwatsu 8 Port Single Line SLT Card SLSB8 E-T2106 C3 DEC-38VO Used

SUPERIOR ELECTRIC/MODULYNX INPUT/OUT INTERFACE IODO11

ICON CIRCUIT BOARD CARD 302-032-03 30203203

BENDIX IP DIAGNOSTIC PANEL INTERFACE BOARD 3732348M 3732348 M

CRYSTAL SPECIALTIES DISPLAY CIRCUIT BOARD CARD 5181072 5181073

EUROTHERM CONTROL CIRCUIT DRIVE BOARD AH388006U004 W/ PARKER SSD AH385826U001

BALDOR DRIVE BOILER CIRCUIT BOARD EB0176B00 REV A (REMOVED FROM ZD18H440-EO

UNKNOWN BRAND NAME DISPLAY CIRCUIT BOARD PANEL CONTROL 170-04003 170-03003 REV D

T5 ORBACOM MULTI STATION INTERCOM CONTROLLER CIRCUIT BOARD 17020252 REV 1

PRIME HEAT SYSTEMS LASER IR CIRCUIT BOARD CARD P74149 VER 2.0

CINCINNATI MILACRON CNC MEMORY CIRCUIT BOARD 3-533-0033G 3-533-0033-G

SCHLAFHORST Z.AUTOMATIK PC BOARD 117-655-924 117655924

NSC RELAY CIRCUIT BOARD ME 2495 JP ME2495JP ME 2494 JC

ALLEN BRADLEY KEYBOARD MDI CONTROL 7300-AKBE6 7300-AKBE 63428606 REV. E 634285

UNKNOWN BRAND NAME CIRCUIT BOARD CARD H2O PCB 300113-00 30011300 REV. A1

MITSUBISHI CIRCUIT BOARD CARD J4W2-J10A BC386C798G51A

K&T KEARNEY & TRECKER 24V OUTPUT DRIVER CIRCUIT BOARD CARD 1-21712-02 12171202

B&R BERNECKER & RAINER MINI DIGITAL OUTPUT MODULE CIRCUIT BOARD MCA12A-0 MCA12A0

MODICON AEG I/O PROCESSOR CPU MODULE BOARD AM-S901-100

UNKNOWN BRAND NAME CIRCUIT BOARD 91040733 SN840112E SN-840112-E SN84O112E

MONARCH CORTLAND CNC SPECIAL I/O CIRCUIT BOARD E49558 REV A

EUROTHERM SSD PARKER DRIVE CIRCUIT BOARD CARD AH500382T119/3 500382

UNICO PC INTERFACE DRIVE CIRCUIT BOARD CARD 309-056.1 309-056-1 3090561

EATON DYNAMATIC CURRENT FEEDBACK CIRCUIT PC BOARD CARD 15-777-1111 157771111

EATON DYNAMATIC PC CIRCUIT BOARD CARD 15-776-1 157761 REV. A

Dynamatic Board Card 15-266-5 152665 29A9227972K004 

CMC CINCINNATI MILACRON PC CIRCUIT BOARD PLC CARD 3-531-2203A 3-531-2203-A

SERVO ROBOT AXIS INTERCONNECTION CIRCUIT BOARD CARD PILOT2000 SR9509PIB

ABB ASEA BROWN BOVERI VARISTOR CIRCUIT BOARD 57619881 A 58939498A NVAR-65

LOUIS ALLIS RELAY POWER SUPPLY CIRCUIT BOARD 46S1662-0020 46S16620020

EUROTHERM SSD PARKER AC DRIVE CONTROL CIRCUIT BOARD AH463114U002 AH463114 U002

EATON DYNAMATIC CIRCUIT BOARD FOLLOWER C-03 15-570-2 15-570-1002 15-000570-1002

RELIANCE ELECTRIC PHASE SEQUENCE CIRCUIT BOARD 2-54349 254349 0-54349 608822060A

AMERICAN MSI MULTIPLEXER SYSTEM 3 TCI CIRCUIT BOARD 3000.020.212 3000-020-212

EUROTHERM SSD PARKER CIRCUIT BOARD AH465811U001/1 AH465811T011/1

EATON DYNAMATIC LOGIC CIRCUIT BOARD CARD 15-575-3 155753 REV. A

CINCINNATI MILACRON WFI4 CNC CIRCUIT BOARD CARD 3-542-1190A 35421190A

CINCINNATI MILACRON WFI4 CNC CIRCUIT BOARD CARD 3-542-1190A 35421190A

MITSUBISHI AC SERVO DRIVE CIRCUIT BOARD J4W2-POM-0.7B J4W2-POM0.7B MR-J4W2-77B

BENDIX S5 TAPE READER PUNCH INTERFACE CIRCUIT BOARD CARD 3731354B 3731354 B

MASONEILAN DIAPHRAM VALVE STEEL 38-20331AB G42335-1 NPT 3/4"

WEIDMULLER INTERFACE MODULE TERMINAL RS-F 26 RSF 2248.6

WIELAND TRANSFER SCREW WIRING TERMINAL BOARD CARD 87.210.2208.3 87-210-2208-3

UNKNOWN BRAND NAME CIRCUIT BOARD CARD FALCD SN831213D SN-831213-D 91100731

K&T KEARNEY & TRECKER FEEDBACK SUBSYSTEM CIRCUIT BOARD CARD 1-20661-02 REV 9

IN CIRCUIT BOARD CARD PBA PBA D43199-101 D43199101 D46153-001

FRABA CIRCUIT BOARD CARD LP586 LP-586 

Modicon Card Board Control PCB J512 PCBJ512 REV B 85-40 NCI FR-0

EVANS & SUTHERLAND QUADAP ARITHMETIC PROCESSOR CIRCUIT BOARD 230116-121AD

K&T KEARNEY & TRECKER FEEDBACK SUBSYSTEM CIRCUIT BOARD CARD 1-20661-02 REV 5

K.J. LAW KJ LAW CONTROL MEMORY CIRCUIT BOARD CARD PC 070379 PC070379

T5 ORBACOM CSC LINE TERMINAL CIRCUIT BOARD CARD A1709322 REV 05 17020322 REV 5

NEW CLEVELAND KIDDER LOAD CELL TRANSDUCER PB-2T PB2T 250 LBS

UNKNOWN BRAND NAME CIRCUIT BOARD CARD V114649 041613 REV D

EATON DYNAMATIC AF5000+ TRANSISTOR SNUBBER BOARD 15-P01048-0001 15-1048-1 REV D

HITRAN TRIGGER CIRCUIT BOARD CARD GK0048-02 GK004802 REV. 14C

ALLEN BRADLEY TAPE READER CIRCUIT BOARD 7300-UCQ1 7300-UCQ 1 634951-90 REV 3

UNKNOWN BRAND NAME COMMUNICATIONS BUS CIRCUIT BOARD CARD BK00227 SURVEYOR ECP

NO BRAND NAME CIRCUIT BOARD CARD 404197 40-4197 SK-30-100 SK-30-100

COMPUTER DYNAMICS CIRCUIT BOARD CARD SBC-XT SBCXT REV D

AUTOMATION UNLIMITED POWER SUPPLY CIRCUIT BOARD 302-033-03 30203303

Salvagnini Circuit Board 85160 E 726 85160E726 Used

TOSHIBA TOSVERT 130 TRANSISTOR DRIVE TERMINAL CIRCUIT BOARD 41578A 41578 REV CD

K&T KEARNEY & TRECKER 110V AC OUTPUT DRIVER CIRCUIT BOARD CARD 1-21282 REV. 10

SMC NCDJ2D16-200-B STAINLESS S/S 5 11/16" - 7 11/16" AIR PNEUMATIC CYLINDER NEW

EUROTHERM PARKER SSD AC DRIVE CIRCUIT BOARD CARD AH471773T001 471773

MORI SEIKI CIRCUIT BOARD CARD BU 01 BU/01 D-0204

IN CIRCUIT BOARD FS3100 SAS EXP FAB01 010150000-000-G K00405-100

K&T KEARNEY & TRECKER FEEDBACK SUBSYSTEM CIRCUIT BOARD CARD 1-21276-03

K&T KEARNEY & TRECKER DISK CIRCUIT BOARD 1-20666 1-20-666 120666

MONOVOLT VERO POWER SUPPLY DMC 115V

ALLEN BRADLEY CIRCUIT BOARD CARD INTERFACE MODULE 634383A 634383 A

TRUTZSCHLER E015-PL E015PL CIRCUIT BOARD 491-71.230.000 49171230000 NEW

EUROTHERM LCD DISPLAY BOARD AH385795U001 MDLS16265-LP

FUJI ELECTRIC BOARD F72159243F

EUROTHERM SSD PARKER DRIVE CIRCUIT CONTROL BOARD CARD AH464657U101 464657 .

POWERWARE POWER WARE EE GATEDRIVE GATE DRIVE BOARD 101072923 101072 118302729

HARMONIC DRIVE SYSTEMS KXA BACKPLANE BOARD CARD G0016370 ISSUE 1

METTLER TOLEDO SCALE HEAD DISPLAY CIRCUIT MAIN BOARD 513211-12001 F10860700A

K&T KEARNEY & TRECKER PIC PRINTED CIRCUIT BOARD 1-20615-01 12061501 REV 6

Barudan Best006A Best 006A Best-006A Circuit Board Card

SIEMENS DRIVE POWER SUPPLY BOARD 6RB2130-0FD01 6RB2-130-0FD01 462 114.9053.01

EUROTHERM SSD PARKER DRIVE CIRCUIT BOARD CARD AH467511T999/2 467511/2

LENZE CIRCUIT BOARD CARD 7068B 7068-B

LINDLY & CO CIRCUIT BOARD CARD 14369-5 143695

CIRCUIT BOARD CARD 263 619-00200 263619-00200 23.1114

NO BRAND POWER CARD CIRCUIT BOARD 5051R

ALLEN BRADLEY PCB CIRCUIT BOARD CARD 633790C 633790-C

UNKNOWN BRAND NAME CIRCUIT BOARD CARD FALCD 91020715

ROSEMOUNT PC CIRCUIT BOARD CARD 08712-0821-0006

RIANDA ELECTRONICS CIRCUIT BOARD CARD 320002-L 320002L

CINCINNATI MILACRON CNC TAPE READER INTERFACE CIRCUIT BOARD 3-531-3674A

ALLEN BRADLEY AC DRIVE CIRCUIT BOARD INTERFACE CARD 42336-200-51 REV F 1336-L4

L&N LEEDS & NORTHRUP ALARM CIRCUIT BOARD CARD 06-980-3004 

HONEYWELL PRESSURE SWITCH CIRCUIT BOARD CARD Z-FDBK-G ZFDBKG

ARGUS ALARM MONITOR CIRCUIT BOARD CARD 10.200.0003 10-200-0003

EPE TECHNOLOGIES PCA INTERFACE CIRCUIT BOARD 72-501187-00 REV. D00

NEW CS BINARY INPUT TRERMINATION CIRCUIT BOARD CARD 075413 REV 0

HUBBELL LINEAR RAMP CIRCUIT BOARD CARD 48534-002 48534002 REV D

TRUTZSCHLER CIRCUIT BOARD CARD SPC-A2 SPCA2 490-80.230.000 490-80.210.001

KELE POWER SUPPLY CIRCUIT BOARD CARD DCP-1.5W DCP15W USED

IN CIRCUIT BOARD CARD PBA A46047-502 PBAA46047-502 A46047502

PEPPERL + FUCHS SPEED CONTROL MODULE WE M/EX-DW-T WEM/EXDWT 08487 

CONTREX CONTROL CIRCUIT BOARD CARD 8100-0137A 81000137A 8100-0137 A

ALLEN BRADLEY PCB HPA CIRCUIT BOARD CARD 633595-A 633595A

INLAND PULSE GENERATOR CIRCUIT BOARD CARD C-78166-2 C781662 REV 2

MURATA PC BOARD 008-78340-62 0087834062

Bosch 032868-2017 PIC PM Board 032867

HYDAC FILTER ELEMENT 0330R010BN3HC AH/D 

STROMBERG PC BOARD 5761019-1J 57610191J 

K&T KEARNEY & TRECKER I/O CONTROLLER CIRCUIT BOARD 1-21744-02 12174402 REV 5

DUSENBERY EUROPE SLOWDOWN & PROGRAMMER CIRCUIT BOARD CARD C091796

IEI Power Supply ACE-A618A-RS-R11 ACEA618ARSR11 100/240 VAC Used

ALLEN BRADLEY 9A AXIS SERVO DRIVE CIRCUIT BOARD 74106-305-52 REV 10 2094-BM01

COMCO SYSTEMS PLC CIRCUIT BOARD CARD 200170 REV C 400298

ALLEN BRADLEY VPD CIRCUIT BOARD CARD 634368 REV. 4

GE FANUC DRIVE POWER CONNECT CARD BOARD 531X308PCSABG1 F31X308PCSAAG1

UNKNOWN BRAND NAME PRINTED CIRCUIT BOARD CARD NO138NQ REV V 2B8844 57173

TRI-MAG POWER SUPPLY CIRCUIT BOARD MF-SP-005 164B130U01 MF-SP-005 E124754

ALLEN BRADLEY PC INVERTER SNUBBER CIRCUIT BOARD CARD 74101-363-51 1336-SN-SP9A

EUROTHERM PARKER SSD AC DRIVE CIRCUIT BOARD CARD AH500818T223/2 500818

STAEFA SMART 2 II SM2-DDC CONTROLLER BOARD 091-60210-82 0916021082 REV. F 21296E

GE FANUC REED RELAY MODULE CIRCUIT BOARD IC600YB914A 44A717536-G01

GE FANUC MEMORY LOGIC CIRCUIT BOARD MODULE IC600CB507A 44A717589-G01

RELIANCE ELECTRIC REGULATOR DRIVE CIRCUIT BOARD 0-5700 0-57002  801416-68A

NO BRAND CIRCUIT BOARD CARD DISPLAY PANEL 015844-01 01584401 ISS 4

GETTYS GOULD PC CIRCUIT BOARD MODULE REV D 44-0035-00 44003500

T5 ORBACOM CIRCUIT BOARD CARD A1709327 REV 02 W/ A1709347 REV 02

GE GENERAL ELECTRIC INPUT MODULE IC600YB804B 115VAC

IN PRO/100 S SERVER ADAPTER CIRCUIT BOARD TRIPLE DES A44064-002 E139761

DELTA PHILIPS BACKLIGHT INVERTER CIRCUIT BOARD RDENC2592TPZF DAC-24T082 AF2

DELTA PHILIPS BACKLIGHT INVERTER CIRCUIT BOARD RDENC2591TPZF DAC-24T082 AF1

NIMBUS CIRCUIT BOARD CARD PCA070 PCA-070 PEC070-7 PEC-070-7