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柯麗梅
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1．*處理單元（CPU）
CPU作為整個PLC的核心，起著總指揮的作用。CPU一般由控制電路、運算器和寄存器組成。這些電路通常都被封裝在一個集成電路的芯片上。CPU通過地址總線、數據總線、控制總線與存儲單元、輸入輸出接口電路連接。CPU的功能有以下一些：從存儲器中讀取指令，執行指令，取下一條指令，處理中斷。
2．存儲器（RAM、ROM）
存儲器主要用于存放系統程序、用戶程序及工作數據。存放系統軟件的存儲器稱為系統程序存儲器;存放應用軟件的存儲器稱為用戶程序存儲器；存放工作數據的存儲器稱為數據存儲器。常用的存儲器有RAM、EPROM和EEPROM。RAM是一種可進行讀寫操作的隨機存儲器存放用戶程序，生成用戶數據區，存放在RAM中的用戶程序可方便地修改。RAM存儲器是一種高密度、低功耗、價格便宜的半導體存儲器，可用鋰電池做備用電源。掉電時，可有效地保持存儲的信息。EPROM、EEPROM都是只讀存儲器。用這些類型存儲器固化系統管理程序和應用程序。
3．輸入輸出單元（I/O單元）
I/O單元實際上是PLC與被控對象間傳遞輸入輸出信號的接口部件。I/O單元有良好的電隔離和濾波作用。接到PLC輸入接口的輸入器件是各種開關、按鈕、傳感器等。PLC的各輸出控制器件往往是電磁閥、接觸器、繼電器，而繼電器有交流和直流型，高電壓型和低電壓型，電壓型和電流型。
4．電源
PLC電源單元包括系統的電源及備用電池，電源單元的作用是把外部電源轉換成內部工作電壓。PLC內有一個穩壓電源用于對PLC的CPU單元和I/O單元供電。
5．編程器
編程器是PLC的zui重要外圍設備。利用編程器將用戶程序送入PLC的存儲器，還可以用編程器檢查程序，修改程序，監視PLC的工作狀態。除此以外，在個人計算機上添加適當的硬件接口和軟件包，即可用個人計算機對PLC編程。利用微機作為編程器，可以直接編制并顯示梯形圖。
GM PC Board GM3023B, #12329
GM PC Board GM3029B, #12323
GM PC Board GM3025B, #12322
GM PC Board GM3027C Circuit Board #13177
GM PC Board GM3025B Circuit Board #13179
GM PC Board GM220A Circuit Board #13178
GM PC Board GM3021A, #12385
GM Circuit Board GM3019A #11738
GM Relay Driver GM 3024 A, #12351
GM PC Board GM3026A Circuit Board #13181
GM Voltage Regulator Board GM3030A #13438
GM Circuit Board GM3020A, #11753
GM PC Board GM3027 D, #12331
GM Voltage Regulator Board, GM3030B, #12319
GM PC Board GM3016.1, REV B #12320
HPM Mass Memory Board 1D703-0003, #15441
HPM Command 90 1D702-0008 Circuit Board #5996
HPM Counter Board 1D703-0007, #15443
HPM 1D702-0009 Command 90 Circuit Board, #7194
New HPM Control Board 1D703-0040 #39060
HPM AC Output Board 1D703-0009, #15448
HPM 1D702-0015 Circuit Board #8698
HPM 1D702-0014 Circuit Board #8701
HPM 1D702-0016 Circuit Board #8700
Micromint Microprocessor Board RTC180 #37748
Sew Eurodrive Circuit Board 8224838.1C #42596
Morse Circuit Board MDC-8C #49381
Cincinnati Milacron PC Board 3-533-0610G #54193
Logical Devices MOS EE/EPROM Micro Programmer Prompro-8X #55596
Boy Machines 2050-01-3 Relay Board #6800
Phoenix Contact Board UMK-SE 11,25 #49062
Miller PC Board LE-38 Control Board #13119
Boy Machines PC Board 9626328 #17154
Power Miser Control Board FPV-01 #24890
Boy Machines PC Board 9626474 #17102
Verilink Control Card 320-100822-002 #55707
Sepro Robotique PC Board 07S0095104/A CN89 #54594
Boy Machines PC Board Binary I/O 9626378 #17098
AEC PC Board A0536808, #12318
Rexroth Analog Amplifier Card VT-VRPA1-151-10/V0/0 #56312
Boy Machines PC Board 9626340 #17153
Boy Machines GMBH 9 634 063 PC Board #6803
Boy PC Board 9626383, #17130
Bosch Circuit Board, 0811405007, 0 811 405 007, #6750
Grayhill I/O Rack Circuit Board 70RCK24, Rev E #51540
Gettys Circuit Board Module 11-0101-100, #11047
Willies Computer Software 4 Port Card DCI-930507 #50693
Allen Bradley X-361943 Clock PC Board #27105
Sew Eurodrive Circuit Board 8225850.16.19 #42601
Nordson Commuication Board 227119B #31875
Omron Output Unit C200H-OD218 #7845
Miller Circuit Board 158160, 158162A KG-51 #28032
National Instrument PC Board SC-2072 Rev. A #51527
Feller Engineering PC Board FP16 #50586
Asea Brown Boveri YT212001-AP/4 #49411
Gettys Circuit Board 11-0065-11, 11-0065-101, #11043
Vickers Control Board EEA-PAM-571-A-12 #60482
Cincinnati Milacon 3 531 3622A Circuit Board #3328
Omtron Temperature Control Board 569001D #17530
Hitachi Circuit Board LS520 #51035
Bailey Controls Circuit Board NTPL01 #7341
Kawaguchi Memory Card EUA-FJK916 #38376
Reliance 0-48652 Meter Calibration PC Board #22851
Feller Engineering PC Control Board AF125 #51575
Motorola PC Board 84-W8094B01, #12349
Dart DC Drive Circuit Board #14841
Moog B53222-003 PC Board #17662
Selec Circuit Board 00403270 #63278
Indramat Program Module MOD1/1X074-003 #45505
Gettys Circuit Board 11-0062-103, 11-0062-25, #11044
Cincinnati Milacron 3-531-3563A, 3 531 3563A Output Board #26960
Miller Circuit Board 165463, 165465, KG-35 #28005
Augat 8160-VME109E Circuit Board #17668
Crydom I/O Mounting Board MS-4 #37756
Philips CPU Board 4022 230 1259 #17322
MOS Integrated Circuit Board 923.052, 923052 #8762
Allen Bradley X-233173A Odd Party PC Board #27104
Mitsubishi Circuit Board J2B-C11C, J2-F04 #42053
Unico PLC Board 319472.004 #13301
Reliance 0-51862-1 PC Board USAB Card #23078
Miller Circuit Board KG-12, 176532, #13126
New Circuit Board 123566 #30164
Sew Eurodrive Circuit Board 82335.1B #42602
Hyper Loop 162-0509 PC Board #20821
NEW Honeywell Power Supply 620-0041 #13828
Parametrics PC Digital Board 600048E #23093
Addison Tube Forming Board E-030301 #32281
Vickers Board 02-158342 Rev A #34189
Movomatic Relay Board PC 3117a #5781
Miller Circuit Board 156623, 156625D, KG-33 #28053
Gordos I/O PC Board PB-24-V #55184
AVL Circuit Boards, RCCB, AFCB, #12530
Allen Bradley Output Module 1771-OGC #49076
Movomatic Relay Board PC 3117b #5782
Adept Tech PC Board 10330-00450 #8550
Boy PC Board 9626225 Circuit Board, #17128
Festo Circuit Board L-350740 #12073
New Reliance 0-52015 Operational Amplifier Board #23173
Fanuc Backplane Board A20B-1002-0860 #51397
Festo IBS FE-NT/T3 PC Board #13203
Hyper Loop Amplifier PC Board 162-0315-002 #20816
Schneider Automation Inc Output Module AS-BDAP-210 #50541
Bielomatik 07102999 PC Board #13307
Nova PC Board 021-5231-004, #12300
Sterl-Tronic Temperature Control Board 22731 #21899
Oc CPU Card 244-2083-004 #56340
Hyper Loop PC Board 162-0706-003, #20812
Miller Circuit Board 186969, 176532 KJ-39 #28044
Allen Bradley Chassis Board 960187 #47097
MPCS PC Board 197607, 182303 #30162
EEI PC Board Receiver-Transmitter #18206
Sew Eurodrive Circuit Board 8227772.13.14 #42605
Siemens Regulator Board 6RB2000-0GA00 #15276
SCI Epic CPU Board 22288 REV B, 52013 REV B #35907
PC Board 34BC0213 1SS G #17797
Static Controls Board CB-0974-301 REV C #29280
Festo IBS FE-BA/T3 PC Board #13204
Square D 50 WC Power Board 52045-018 #47081
PC Board with Transformer 162-1701 062-001 #20861
PC Board with Transformer 162-1701-001 #20862
PC Board with Transformer 162-1701-001 #20862
Nematron PC Board 110A0395E #26070
GM PC Board GM3019B #13187
Flex Weigh EB1591 UWI Keyboard Interface #16772
Cutler Hammer Control Windings Board 58-3741 #31822
STL Transtech Circuit Board 406-041-00 #49384
Quartech Circuit Board 600P46H03 #42660
Gettys Circuit Board 55-0050-00, #11079
SCI Circuit Board 080-2483 / 180-2483 #24189
Circuit Board 3000-2030 REV E #16359
Impact Systems Video Timing Card 05-1058-00 #33204
Osacom Control Board L3389D #25915
Mitsubishi Board A178B, B96351009 B #30923
Vickers Resolver Board 946339 Rev D #34184
Eurotherm Controls Circuit Board AE131255 #47427
Devlieg Circuit Board 9D1258A #20702
Static Controls PC Board CB-0974-311 #29281
US Robotics Modem USR5610B #43481
Allen Bradley TTL Output Module 1771-OG #51255
Allen Bradley ISO Circuit Board 140122 #13978
XYZ Technologies TBRD9801a #6795
Yaskawa Circuit Board D11-A91290-5 #47432
Allen Bradley X-233232 Phase Shift PC Board #27107
Grayhill I/O Module Board 70MRCQ24 #49380
Flowstream Universal Flow Monitor GM-1-DC-OFS #13778
Allen Bradley X-233175 Tally Reader PC Board #27106
Technisches Process Control Board K26RR #31858
NEW Astro System Card 100-6533 #10922
Numa Logic Input Module Board NL-351L #20788
Fanuc Output Module A03B-0801-C449 #51380
Honeywell Process Controller DC300E-E-000-10-0000-0 #48416
New Quartech Power Supply Board 8552 #43053
JSW Circuit Board ABA-21 #65038
IDC Corporation Power Supply Board SH21-PS #43152
Allen Bradley AC Output Module Board 1771-OA, #13111
Minster 490-0232 Brake Monitor / Control Unit #31711
Marquip 9117410 Tension Control Board #11298
GSE Inc. PC670H 40-20-21084 PC Board
Allen Bradley Circuit Board 74100-301-52 #36190
Circuit Board SS Proportioning 1094V0 #7156
Gettys Circuit Board 44-0027-00, 44-0027-102, #11049
Gettys Circuit Board Module 11-0099-100, #11046
Technitron Initiation & Main Valve Control Board 625702 #5908
New Upgrade Man Circuit Board UM653300 #42671
MFG Circuit Board, GM3026B, 115 Volt, #11723
Buhl / Engel Control Card UDG 78.1 #29701
Ingersoll Rand 120596 Filter Circuit Board #7880
Toshiba ARNI-132CE PC Board #15272
US Drive PC Board 3000-2035 #6934
Reliance Electric TSTB Board #34573
Allen Bradley X-233164A Nand PC Board #27159
Star Ciruit Board 9737-PR01E #5876
Modicon I/O Analog Module AS-B872-200 #46635
Fanuc Axis Control Board A16B-1211-0060 #51394
Allen Bradley PC Board 42305-052-04 #44482
New Rolm Dual OPS Card 59033A #33206
Lumonics Power Supply Card E81Z5561C #32863
NEW Reliance Electric 0-52808 Circuit Card, PC Board OLVA #20948
Indramat PC Board 109-0468-4B09-01 #51371
Thermocouple Board Assembly P402-2947 Circuit #15130
Gettys Circuit Board Module 11-0089-100, #11045
Tecnomagnete PC Board 111501 #19180
Allen Bradley PC Board 42305-052-04 #44483
Static Controls PC Board CB-0974-311 Rev A #29137
Mitsubishi Circuit Board BN634A845H01 #42052
STI Light Curtain Control Board #15925
Bryant DC300 PC Board #12383
Miller Circuit Board 156623, 156625D, KJ-21 #28056
Fanuc Axis Control Board A16B-1211-0062 #51393
Mitsubishi PC Board BN624A550G52 Circuit Board #8773
Westinghouse 5281C58H01 Data Plus Data Card #20637
Mitsubishi 5 Slot Rack Extension Board A55B #25687
Westamp Control Assy PC Board 33026-5 #24687
Siemens Analog Ouptput Module Simatic S5 6ES5 470-7LB12 #48183
NEW Unico PC Board 317832, 317832.004, 400-451 Circuit Board #13308
Reliance Electric VLDC Board 0-51847-2 #34553
Siemens Module 6ES7 134-4FB01-0AB0 Simatic S7 #55000
SCI Circuit Board 080-2458-1 Rev A, 180-2458 Rev B #37854
Omron Sysmac Link Unit C200HW-SLK24 #7846
Time Mark Corp 3 Phase Monitor A257BM #54315
SCI Circuit Board 080-2305 Rev K, 180-2305 Rev H #27869
Power Miser Control Board FPW-01 #24896
Sterling 581-877734-00 PC Board #15138
Allen Bradley X-233166A, 1610P-K10N24 PC Board #27167
Dukane Circuit Board 110-1556 #14643
SCI Circuit Board 080-2355 Rev A, 180-2355 Rev. 0 #36634
Real Times Devices Industrial Control Interface AD1000 #43787
Data Technology Circuit Board 5150BX1 #32284
National Instrument PC Board SC-2072 #49399
MOS Integrated Circuit Board 923.057, 923057 #8765
MOS Integrated Circuit Board 923.053, 923053 #8763
Allen Bradley Datamyte Controller 914-8 #48666
Force Computers SYS68K/CPU-6 #56723
Allen Bradley Chasis Board 960188-01 #46963
Harmo PC Board PCB-E052 #22068
MOS Integrated Circuit Board 923.055, 923055 #8767
