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。X0的第二個上升沿到來時對Y0不起作用，但CT100對其計數，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輸出狀態下電源斷電或PLC由運行轉為編輯后Y0斷開而CT100保持計數值“1”。若梯形圖中去掉R9013常開觸點，在系統再恢復運行時*次按動X0將不能啟動系統，只有在第二次按動X0時才能啟動系統。
分析可見，該控制系統輸出信號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。
手機
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Qq:
鄭娟萍
廈門仲鑫航自動化設備有限公司
現在許多小型的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據。但大多數時候，PLC制造廠商為了節約成本，不可能提供足夠數的掉電保持寄存器供系統設計人員使用，所以當被調整的數據項目超過PLC內部的掉電保持寄存器的數目的時候，我們不得不減少被調整的數據項目（固定或不用）或者購買具有更多掉電保持寄存器數目的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) 每檢測到一個計數器邏輯行X0的上升沿（OFF→ON的狀態變化），EV100中的數值減1計數。
3) 當EV100中的數值減至“0”時，計數器C100的觸點動作并保持，即常開觸點閉合，常閉觸點斷開。
NIMBUS CIRCUIT BOARD CARD PCA070 PCA-070 PEC070-7 PEC-070-7
NEW GE LUCALOX LAMP LIGHT BULB 44047 LU250 S50 250 WATT 250W
MI UNIVERSAL RELAY CIRCUIT BOARD CARD PLC MODULE 9109-005-000-SA 9109-016-000
ABB INDUSTRY OY ASEA BROWN BOVERI CIRCUIT BOARD CARD NDPI-03 NDPI03 57619686 A
Schlafhorst anspinn prüfer Circuit Board 117-655 544G 117655544G Used
COMPUTER DYNAMICS CIRCUIT BOARD CARD SBC-XT SBCXT REV H
SQUARE D ATV DRIVE POWER CIRCUIT CARD BOARD STI980207-01-06 STI980290-01-04
Alltech Electronics Board Card K103-15074 T91P1D22-12
GE CIRCUIT BOARD 44B399882-002 44A398711-G02 0DI32B
AS IS WESTINGHOUSE 1870A82 233P747HO1D CIRCUIT BOARD
WESTINGHOUSE PULSE WIDTH BOARD 180P686H01J 486A809-G01
PANASONIC CIRCUIT BOARD CARD J1-1R-2Q016S J1-1R2Q016S MN-460A MN460A
ALLEN BRADLEY 15kW 15A INTEGRATED AXIS SERVO DRIVE CIRCUIT BOARD 74106-308-51
CINCINNATI MILACRON CNC ROM SET CIRCUIT BOARD CARD 3-531-3288A 3-711-1776G REV A
MURATA CIRCUIT BOARD/CARD 008-7091A-61 0087091A61
ALLEN BRADLEY UIA-01 CIRCUIT BOARD CARD 634173A 634173-A
SSD DC VOLTAGE TRANSFORMER AH044104U001 / ConTec
ELECTRONIC WOOD SYSTEMS OBEN CIRCUIT BOARD RECEIVER LP504
Condux Circuit Board KG8924-1 KG89241 KDA7361B Rev E Used
MASTER HALON BD SUPPRESSION CONTROL BOARD 18900139 REV D 18200688 REV P BBC G
Fanuc Spindle Amplifier Module A06B-6092-H245 Plastic Cover Used
MONARCH CORTLAND CNC SPECIAL I/O BOARD E49560 E49555
BEACONMEDAES BEACON MEDAES CIRCUIT BOARD CARD 4107-6511-80 4107651180 REV 03
MEDAR 500S CIRCUIT BOARD CARD 519-B 5193-BM1 5913BM1
EATON DYNAMATIC AF5000+ CAPACITOR BANK BOARD CARD 15-1057-1 1510571 REV C
NIMBUS TECHNOLOGY FOCUS SERVO CIRCUIT BOARD CARD PEC009-2 PEC-009-2 PEC0092
EUROTHERM SSD DRIVE CIRCUIT BOARD POWER MODULE AH471142T545 471142
SSD EUROTHERM DRIVE CIRCUIT BOARD CARD AH043724U154 AH043724U154 043724
Unitech Board 4640 Head SW BD T870008-520 NEW
SQUARE D POWER INTERFACE BOARD 52011-390-01 53 REV E
HYPER LOOP PC BOARD PHASE SHIFT CIRCUIT BOARD 162-0509-001 1620509001
MMI MARATHON MONITORS UNIPRO PROCESS CONTROL CIRCUIT BOARD 810061-01 81006101
MMI MARATHON MONITORS UNIPRO PROCESS CONTROL CIRCUIT BOARD 810161-1 8101611
DTM CONTROL CIRCUIT DRIVE BOARD CARD EOV 40-301 40301
NIMBUS T&E CIRCUIT BOARD CARD PECA022 PECA-022 PEC022 PEC-022 ISS 2
EATON DYNAMATIC AF-5000+ LOAD INTERFACE DRIVE 15-864-8 158648
QEI CIRCUIT BOARD CARD 6SI1 40-055904-001 30-056190-001H
K&T KEARNEY & TRECKER CMUX 2 CIRCUIT BOARD 1-21758-03 12175803 REV 1
HYUNDAI INVERTER AC DRIVE POWER CIRCUIT BOARD CARD 2B022589-1 J300-075LF
MULLER MARTINI OPERATOR INTERFACE DISPLAY PANEL CONTROL 4342.1135.3 4342.3031.4A
MATROX CIRCUIT BOARD CARD QG-640 QG640 254-06-02
EUROTHERM SSD PARKER CIRCUIT BOARD CARD AH471153T740 471153
KOCH CIRCUIT BOARD CARD 8010-6 80106
ALLEN BRADLEY CNC OUTPUT CIRCUIT BOARD CARD 7100-OAA 7100-0AA 636408 120V
UNKNOWN BRAND NAME POWER SUPPLY SCDC CIRCUIT BOARD 4406 2468268 002-0377 R2 NEW
UNKNOWN BRAND NAME CIRCUIT BOARD CARD 2588309-0001 REV H A16532-1
MOTOROLA AMP CIRCUIT BOARD CARD 0183625X01 12-403938-01 35-403938-01 REV A
CINCINNATI MILACRON SIEMENS CIRCUIT BOARD CARD 3-531-2984A 35312984A REV C
MOTOROLA AMP CIRCUIT BOARD CARD 0183625X01 12-403938-01 35-403937-02 REV B D
RELIANCE ELECTRIC CIRCUIT BOARD DRIVE CONTROLLER 60015-A 60015A
MASTER CONTROLLER CIRCUIT BOARD PLC CARD DAS1.1 DAS 1.1
GE FANUC DRIVE TB OPTION CARD 531X170TBSAGG1 F31X170TBSADG1
PHILIPS X-RAY THYRISTOR INTERFACE D77 BOARD SC110/SC210 4512-130-65956 LB107F
INDRAMAT CIRCUIT BOARD CARD 109-0770-3B06-03 20907703B0603 238894
FINCOR ENCODER INTERFACE BOARD 105622401 1056224-01 C
IN PCI EXPRESS PRO/1000 PF QUAD CIRCUIT BOARD CPU-D15519 D33025 D15531-003
HEALD CIRCUIT BOARD CARD 3-531-2601-A 35312601A 3-531-2601A
NO BRAND CIRCUIT BOARD CARD 800802A 800802-A
ACCRAPLY CIRCUIT BOARD CARD 824212
Refrigeration Research Refrigeration Suction Accumulator 3831 450 PSIG 3100 kPa
Avalon Safety Cycle II LED Status Board REV B
REXCON ANTI TIE DOWN BOARD MODULE IN-ATD-2-22 INATD222
EDYNE BROWN ENGINEERING BACK PANEL BOARD 3000 C62374 C62375 REV. 3
EUROTHERM SSD PARKER PC CIRCUIT BOARD CARD AH471148U700/3 471148
ALLEN BRADLEY 5KW 5 KW AXIS POWER CONTROL BOARD 74102-328-53-F 74102-328-53F
EUROTHERM SSD PARKER DRIVE CONTROL CIRCUIT BOARD CARD AH465214U001 465214
BEST POWER TECHNOLOGY CIRCUIT BOARD CARD PCB1C PCB-1C C664 48V
CMC CINCINNATI MILACRON DRIVER PC CIRCUIT BOARD CARD 3-531-2209A 3-531-2209A
FIBRESCAN FS1301 POWER SUPPLY BOARD
SIMPLEX CIRCUIT BOARD CARD IZB IZB-4PCA 5000-IZB 03151
JMV ROBOTIQUE CIRCUIT BOARD CARD LAB500 LAB-500 REV. 3
VARIAN STORK 2 MEDIUM POWER CONTROL BOARD CARD TM56917000 IPC351
LFE PC Board Interface Base WW-1653-0088 WW16530088 Rev H Used
Fanuc Connector Panel A02B-0072-C204 A02B0072C204 Used
MONARCH CORTLAND CNC MACHINE OUTPUT CIRCUIT BOARD E49984 E49983
B&R BERNECKER & RAINER MINI INTERFACE COMMUNICATIONS MODULE MCPIFA-2 MCPIFA2 NEW
GOULD GETTYS FIRING CIRCUIT BOARD CARD 14-0024-05 14002405 14-0024-105 REV B
TOSHIBA POWER MODULE MG50Q1BS11
GE FANUC SINGLE AXIS CONTROL BOARD IC600BF915L IC600-BF915L 44A717556-G01
PAIRGAIN PAIR GAIN HIGAIN REM REMOTE UNIT HRU-402 HRU402 150-1592-04-X01
EUROTHERM PARKER SSD AC DRIVE CIRCUIT BOARD CARD AH471150T700/2 471150
SAFETRAN DISPLAY KEYPAD KEYBOARD CIRCUIT BOARD 170-SV 044062D170-00E
POTTER & BRUMFIELD EMERSON CONTROL RELAY CIRCUIT BOARD CARD 2450-4014 24504014
RELIANCE ELECTRIC INTERFACE DRIVE CIRCUIT BOARD 0-58704C 0-58704-C 802288-91A
ABB ASEA BROWN BOVERI AC DRIVE CIRCUIT BOARD CARD 58939200C NVAR-31
ATLAS CONVERTING CIRCUIT BOARD CARD 673039 ISSUE 2 W/ SOLA 84-15-2120 84152120
EMERSON DRIVE POWER SUPPLY CIRCUIT BOARD CARD G 6230-4112 62304112 6230-2112
EFD DISPLAY KEYPAD CIRCUIT BOARD CARD OPN-1065 OPN1065
UNKNOWN BRAND NAME CIRCUIT BOARD CARD D863 D-863
LINK ELECTRIC MOTION DETECTOR 202 CIRCUIT BOARD CARD
EL ERHARDT LEIMER CIRCUIT BOARD CARD ZS-2201 ZS2201
VALUESCAN XMITTER 12" MID CIRCUIT BOARD CARD 42513 17410
SWICHTEC INVENSYS ENERGY DRG 21592 CIRCUIT BOARD 350-00079-18B R5800 LCD DISPLAY
ALLEN BRADLEY 9A AXIS SERVO DRIVE CIRCUIT BOARD 74106-305-51 REV 10
YASKAWA CIRCUIT BOARD CARD JANCD-MM21-2 DF8202438 REV. A01
ALLEN BRADLEY POWER SUPPLY CIRCUIT BOARD 7300-VPE 7300VPE 634434-90 REV 5
WELTRONIC TECHNITRON CIRCUIT BOARD CARD 625943A 625943-A
LOT OF 4 NEW BUSSMANN LIMITRON CLASS CC FUSE KTK-R-30 KTKR30 30A 30 AMP A 600V
SEW EURODRIVE MOVIDRIVE AC DRIVE CIRCUIT BOARD 8223211.13 822321113 813-273-9.12
NO BRAND POWER SUPPLY CIRCUIT BOARD CARD 8P081 8PO81
Eurotherm SDS Parker LED Board AH466405U901/2 AH466405U9012 Used
UNKNOWN BRAND NAME CIRCUIT BOARD CARD TDS-3 TIMER DFL-TDS3-M549A1-S00-1
WESTINGHOUSE PULSE WIDTH BOARD 180P686H01J 486A809G02
YASKAWA DRIVE CONTROL DISPLAY CIRCUIT BOARD CARD ETC604360-S0013 YPHT31237-1E
CMC CINCINNATI MILACRON PC RELAY CIRCUIT BOARD PLC CARD 3-531-2275A 3-531-2275-A
Asea YPR 104 Memory Board YT204001-DF/1 2668 184-736/1 Used
EUROTHERM SSD DRIVE CIRCUIT BOARD CARD AH500816U204/1 AH500816T214/1
EUROTHERM SSD PARKER CIRCUIT BOARD DRIVE CARD AH350084U001 AH350084-U001 REV. 2
SWICHTEC INVENSYS ENERGY 350-0079-54C R5848-11 RECTIFIER CONNECTOR BOARD
Digital Equipment M7677 Monitor And Dist Module 50-16467-02 501646702 Used
NCR 2 CHANNEL VIDEO CORRECTION BOARD CARD DID-2160484-0061589-009 484-0061586
YASKAWA CIRCUIT BOARD CARD CACR-TS-CC CACRTSCC DF8305208-B0 REV. B0
EUROTHERM SSD PARKER DC DRIVE POWER CIRCUIT BOARD CARD AH469353T102 AH469353
WESTINGHOUSE SEQUENCER MODULE 233P747H01E 1870A82 USED
ZURN PSB ARMOR CIRCUIT BOARD 48-123 48123 4348 HE-3-V0
UNKNOWN BRAND NAME 2ZONEDDZ ARGUS ALPHA CIRCUIT BOARD 15.200.0011 15-200-0011
EUROTHERM SSD PARKER AC DRIVE CONTROL BOARD CARD AH471148U500/2 471148
Fisher Provox High Density RAM Battery Backup Multilayer CL6601 40B1017X072 Used
Allen Bradley 10-40VDC Output Module 1771-OBDS A 96097072 300mA @ 5VDC 8 Amp
SANYO DENKI PC CIRCUIT BOARD CARD ARC-77 ARC77 QAI058-PI QAI058-P1 QF41001B
Fisher Rosemount Provox Analog Output DM6421X1-A1 46A3554X012 L 46A2802 Used
Iwatsu Omega COTL8 8 Port Loop Start Trunk Circuit Card E-T2339 G4 Used
YASKAWA ELECTRIC BACKPLAIN CIRCUIT BOARD CARD DF9200674-E0N JANCD-MBB02-1 E01
CINCINNATI MILACRON CNC DIGITAL DISPLAY CIRCUIT BOARD 3-531-3296A 35313296A
BURTON CIRCUIT BOARD CARD 513-385 513385 REV I
K&T KEARNEY & TRECKER FEEDBACK SUBSYSTEM CIRCUIT BOARD CARD 1-20661-02 REV 4
STI SAFETY INTERLOCK SWITCH ACTUATOR ASSEMBLY 44518-0050 MF-1PC6 MF-1 1 AMP A 1A
ATI TECHNOLOGIES 3D CHARGER RIIC PCI EDO CIRCUIT BOARD 109-38800-20
UNKNOWN BRAND NAME CIRCUIT BOARD CARD PWB-842 PWB842 1342802
UNKNOWN BRAND NAME CIRCUIT BOARD CARD PC-1052B PC1052B
Avalon Safety Cycle II LED Status Board 20004 G 30036 K
TOSHIBA PROGRAMMABLE LOGIC CIRCUIT BOARD CARD P6581581P902 P6581271G901
NO BRAND NAME CIRCUIT BOARD CARD PLC XL NELLS 603-110 603110
PANALARM PC BOARD FOR RILEY ALARM SYSTEM 70-AR1 12VDC 070-0042-3-05-B 5-09-N
TAKAOKA PC CIRCUIT BOARD CARD PEA000797 PEA-000797
K&T KEARNEY & TRECKER MULTIPLE SERIAL PROCESSOR BOARD 1-21764-04 1-2176404 REV 1
YASKAWA DRIVE CONTROL CIRCUIT BOARD CARD YPLT31004-1B ETC616680-S1114
ALLEN BRADLEY VBT3 VBT CIRCUIT BOARD 633640VBT 633640
K&T KEARNEY & TRECKER FEEDBACK SUBSYSTEM CIRCUIT BOARD 1-20661-01 12066101 REV 6
K&T KEARNEY & TRECKER FLEX CELL OCP INTERFACE CIRCUIT BOARD 810-21727-01 135138
MANNESMANN REXROTH AMPLIFIER CIRCUIT BOARD CARD VT-2013-S16/2 VT2013S162
YASKAWA CIRCUIT BOARD CARD CACR-TM-CC DF8305208-B0 REV. B0
ARICO POWER CIRCUIT BOARD CARD FPV-01 FPV01 2003-03 VER. 1.1 REPAIR
EUROTHERM SSD PARKER AC DRIVE CONTROL CIRCUIT BOARD AH468001U001 AH468001
NORTH AMERICAN EPIC II RPC CONTROLLER CIRCUIT BOARD CARD
SIEMENS CIRCUIT BOARD CARD 570-374-9001.51 570374-9001.51 570374.0001.51
CINCINNATI MILACRON CNC IPL TAPE READER INTERFACE CIRCUIT BOARD 3-531-3305A
BALDOR CIRCUIT BOARD CARD EB0524A00 PB0303A00 VS1GV420-1B
LOUIS ALLIS CO. CIRCUIT BOARD 46S976-10 46S976-0010
MONARCH CORTLAND RELAY CIRCUIT BOARD E49550 SSAC SP-462 462-1
PARKER CIRCUIT BOARD PCB: 1186-011-12 118601112 PEL1686
SSD EUROTHERM DRIVES CALIBRATION CIRCUIT BOARD AH046789U002
emecanique Circuit Board 880 602 AD 758619 880601-212-06 Used
CYBEREX MICRO CONTROL CIRCUIT BOARD CARD 41-09-604452 4109604452
New Benninger Card Board Relay GE 10151 X60 GFA1131X NEW
New Cutler Hammer Circuit Board LSL Driver GD108DR
LOUIS ALLIS CO. CIRCUIT BOARD 46S979-10 46S979-0010
ELTEX CIRCUIT BOARD CARD ART. 15132 68130 J3 15130J NEW
NIMBUS CIRCUIT BOARD CARD ANALOG DIGITAL SP/DIF PEC100-2 PEC-100-2
SOLITECH CIRCUIT BOARD CARD S101-B1-C S10AB1C
RELIANCE ELECTRIC CIRCUIT BOARD CARD B/M 0-48672 048672
ALLEN BRADLEY RESOURCE MANAGER BOARD 5130-RM 5130RM SER A A08 A
PARKER DIGIPLAN CIRCUIT BOARD CARD PLC PCB 1186-011-13 118601113
BURTON CIRCUIT BOARD CARD 513-257-000 513257000 DRV A
ORMEC SYSTEMS CORPORATION PC BOARD PCB012A PCB-012A PCB-012-A REV. UNKNOWN
Exide Circuit Board X1060-71-1 X1060711 Rev M Used
SSD EUROTHERM DRIVES CALIBRATION CIRCUIT BOARD AC046789U003
COMPUTER DYNAMICS RTOUCH CIRCUIT BOARD REV B EL-BD ELBD
KONE MONTGOMERY CIRCUIT BOARD P-15730 P15730 B-47109 REV. 2
Emerson Digital Logic 02-777811-00
SOLA POWER SUPPLY GLS-04-040 GLS04040 100-240V OUTPUT 40W MAX
4) SAMSUNG SEC MEMORY MODULE CIRCUIT BOARD CARD KMM372F404AS-6 KMM372F404AS6
GE FANUC 128K CMOS MEM MEMORY MODULE CARD BOARD IC697MEM731E 44A735351-G01
Ink System Interface Board 25015 25015B 25115 Used
MAG CIRCUIT BOARD CARD M98097651 PBM-F32-V14-SE PBC-FK2-V14-SD
YASKAWA MOTOMAN ROBOTICS ERC PC CIRCUIT BOARD JANCD-CP11 DF9200416-B0 REV E1
RELIANCE ELECTRIC PC DRIVER BOARD 48672-1 486721 REFURB
SCHLAFHORST Z-ANALOG/RIZ 117-655 962 ANALOG CARD/BOARD
CMC CLEVELAND MOTION CONTROL AC DRIVE PM2C CONTROL CIRCUIT BOARD CARD C41-10144P
FENNER CIRCUIT BOARD CARD DS181185-140 DS181185140
New in Bag Unknown Card Board Control CCI 1-0 A-4-0452G
UNKNOWN BRAND NAME CIRCUIT BOARD CARD 493142 081996 REV C
Applied Color Processor Board 1750-0020 17500020 Rev 5 Used
ALLEN BRADLEY ROCKWELL AUTOMATION CIRCUIT BOARD 74104-452-84 REV 08 74104-451-10
YASKAWA PC BOARD JANCD-MCP01 REV.D03 DF9200650-C0 MCP01
SIEMENS CIRCUIT BOARD CARD S30809-B1013-A W30809-B1013-W-4-B900
SALVAGNINI EXOR OUTPUT CONTROL MODULE CARD ECS80 E137 E137A IB-06A IB-06A 250981
EMERSON INTERFACE CONTROL BOARD 1550-4206 15504206
FANUC FUJITSU CNC KEYBOARD CONTROL BOARD A98L-0001-0621/02 N860-3141-T001
HYGROMATIK CIRCUIT BOARD CARD MODULE EM2 B-2525160 E-2525121
BIERREBI CIRCUIT BOARD CARD BRB-2073 BRB2073 2.028.01.207.01
ALLEN BRADLEY CIRCUIT BOARD 314081-A01 314081A01
