當(dāng)需要替換某個模塊時，用戶應(yīng)確認(rèn)要安裝的模塊是否同類型。有些I/O系統(tǒng)允許帶電更換模塊，而有些則需切斷電源更換。若更換完，在相對較短時間后又發(fā)生故障，那么應(yīng)檢查產(chǎn)生電壓的感性負(fù)載。若更換后，保險絲易被燒斷，則有可能是模塊的輸出電流超限，或輸出設(shè)備被短路。

PLC的故障診斷十分重要，本文對常用的故障診斷方法進(jìn)行了探討。在實(shí)際工作過程中，應(yīng)充分考慮到各種對PLC的不利因素。對PLC進(jìn)行定期檢查和日常維護(hù)，是保證PLC控制系統(tǒng)正常、安全、可靠運(yùn)行的關(guān)鍵。

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【莫迪康】

AS-BDAP-258? AS-BDAP-258C? AS-BDAP-292 AS-BDAU-202??????? AS-BDAU-208? AS-BDE0-216 AS-BDEA-202?? AS-BDEA-203?? AS-BDEP-208?? AS-BDEP-210? AS-BDEP-211? AS-BDEP-214? AS-BDEP-215? AS-BDEP-216? AS-BDEP-217? AS-BDEP-218? AS-BDEP-220? AS-BDEP-254? AS-BDEP-254C? AS-BDEP-256? AS-BDEP-256C? AS-BDEP-257? AS-BDEP-257C?? AS-BDEP-296? AS-BDEP-297? AS-BFRQ-204? AS-470-000? AS-8534-000? AS-9370-001? AS-B351-001? AS-B352-001 AS-B801-000? AS-B802-000? AS-B802-008? AS-B803-008? AS-B804-000? AS-B804-016? AS-B804-116? AS-B805-016? AS-B806-032? AS-B807-032? AS-B807-132? AS-B808-016? AS-B809-016? AS-B814-108? AS-B817-116? AS-B821-008? AS-B821-108? AS-B824-000? AS-B824-016? AS-B825-016? AS-B826-000? AS-B826-032? AS-B826-116? AS-B827-000? AS-B827-001? AS-B827-032? AS-B828-016? AS-B829-116? AS-B832-000? AS-B832-016? AS-B833-000? AS-B833-016? AS-B836-016? AS-B837-016? AS-B838-03? AS-B840-000? AS-B840-100? AS-B846-001? AS-B846-002? AS-B855-016? AS-B862-001? AS-B863-001? AS-B863-016? AS-B864-001? AS-B865-001? AS-B872-000? AS-B872-001? AS-B872-002? AS-B872-011? AS-B872-032? AS-B872-200? AS-B873-001? AS-B873-011? AS-B875-001? AS-B875-002? AS-B875-011? AS-B875-012? AS-B875-100? AS-B875-101? AS-B875-102? AS-B875-111? AS-B875-114?? AS-B875-200? AS-B882-032? AS-B882-239? AS-B883-000? AS-B883-002? AS-B883-101? AS-B883-111? AS-B883-200? AS-B883-201? AS-B884-002? AS-B885-001? AS-B885-002? AS-B885-100? AS-B885-101? AS-B885-110? AS-B885-111? AS-BADU-201? AS-BADU-202? AS-BADU-204? AS-BADU-205 AS-BADU-206 AS-BADU-211? AS-BADU-212? AS-BADU-214? AS-BADU-216 AS-BADU-254? AS-BADU-256? AS-BADU-257? AS-BCTR-212 AS-BCTR-214? AS-BDAO-216? AS-BDAP-104? AS-BDAP-112? AS-BDAP-204? AS-BDAP-208? AS-BDAP-209? AS-BDAP-210 AS-BDAP-211? AS-BDAP-212? AS-BDAP-216? AS-BDAP-217? AS-BDAP-218? AS-BDAP-220? AS-BDAP-258 AS-BDAU-104 AS-BDAU-202? AS-BDAU-204? AS-BDAU-205 AS-BDAU-206 AS-BDAU-208? AS-BDEO-216 AS-BDEP-112? AS-BDEP-208? AS-BDEP-209? AS-BDEP-210? AS-BDEP-211? AS-BDEP-214? AS-BDEP-215? AS-BDEP-216? AS-BDEP-217? AS-BDEP-218? AS-BDEP-220? AS-BDEP-297? AS-BMOT-202 AS-BNUL-200 AS-BZAE-201? AS-BZAE-204? AS-E381-90 AS-E685-914? AS-E908-016? AS-E908-131? AS-E952-012? AS-H819-100? AS-H819-209? AS-H827-100? AS-H827-20? AS-HDTA-200? AS-HDTA-201? AS-J378-000? AS-J878-000 AS-J890-000? AS-J890-001? AS-J890-002? AS-J890-101? AS-J892-101? AS-M380-004? AS-MBII-003? AS-MBKT-005 AS-MEEP-001? AS-P810-000AS-P810-001? AS-P810-003? AS-P810-010? AS-P840-000 AS-P890-000? AS-P890-300? AS-P892-000 AS-P965-000? AS-S908-000? AS-S908-001? AS-S908-021? AS-S908-110? AS-S908-111? AS-S911-000? AS-S911-001? AS-S911-003? AS-S911-800? AS-S911-801? AS-W801-006? AS-W804-012AS-W808-002? AS-W808-006 AS-W956-012? AS-W956-025? AS-WBXT-201? AS-B814-108? 140NOM21100? AS-B805-016? AS-B356-001?? AS-B357-001 AEGP930?? 520VPU19200? AS-B872-011? 140-QUCM AS-B872-011?? AS-B872-002?? AS-B824-016 140-CPU-534-14A? 140-CPU-434-12A? 140CRP93100

MM-PM10300C? MM-PM10300C 140-CRA2111 MM-PM10300C S/N:91213089? 140AVI03000? B231-501? S-P810-000 P810

140DRC83000? 92-00930-00 *? Plus MM-PMA2-100

MM-PMC2-300 / 92-00840-01? AS-J890-001

1140DAM59000? XBTH021010? MM-PMC2-300/92-00840-01

MM-PMC2-300 /92-00840-01? 140-CPU-434-12

P/N:91-00962-00? PSY3610 3-2 L-3

AS-BDAP-218?? AS-HDTA-202? AS-P120-000 AS-BDEP-218

AS-BDAP-210? AS-B840-108? AS-B883-200? AS-S911-801

AS-B808-016? AS-B838-032? AS-B809-016? AS-B827-032

AS-B814-108? AS-S908-120? AS-J890-102? AS-P810-000

?

【施耐德】

?

140CRP93100?? 140DAO84210?? 140XBP16000 140ACO02000?? 140DDI35300?? 140CPS12400? 140CPU11302? 140CPU11303? 140CPU67160? 140AVI03000? 140DAI74000? 140DAO85300? 140DDI84100? 140DDO84300? 140CPS11420? 140CPS11410??? 140DDI35300? 140DDI35310? 140DRA84000? 140DAO84210? 140XBE10000? 140MSB10100? 140DAI5530? 140CPU11302? 140CPU11303? 140CPU31110? 140CPU43412A 140CPU43412AC? 140CPU43412U? 140CPU43412UC? 140CPU53414B? 140CPU53414BC? 140CPU65150 140CPU65160? 140CPU67160? 140CPU65260? 140CHS11000? 140CHS21000? 140CHS32000? 140CHS41010? 140CHS41020? 140SHS94500? 990XCA65609? 490NOR00003 490NOR00005? TSXMCPC512K? TSXMFPP001M TSXMFPP002M? TSXMFPP004M? 140CPS21100? 140CPS21400? 140CPS22400? 140CPS41400? 140CPS42400? 140CPS51100? 140CPS52400? 140DAI34000? 140DAI35300? 140DAI44000? 140DAI45300? 140DAI54000? 140DAI54300? 140DAI55300? 140DAI74000? 140DAI75300? 140DDI15310? 140DDI35300? 140DDI35310

140DDI36400? 140DDI67300? 140DDI84100? 140DDI85300? 140DII33000? 140DSI35300? 140DAO84000? 140DAO84010? 140DAO84210? 140DAO84220? 140DAO85300? 140DDO15310? 140DDO35300? 140DDO35301? 140DDO35310? 140DDO36400? 140DDO84300? 140DDO88500 140DIO33000? 140DRA84000? 140DRC83000? 140DVO85300? 140DAM59000? 140DDM39000 140DDM69000? 140ACI03000? 140ACI04000? 140AII33000? 140AII33010? 140ARI03010? 140ATI03000? 140AVI03000? 140ACO02000? 140ACO13000? 140AIO33000? 140AVO02000? 140AMM09000? 140EHC20200? 140EHC10500? 140HLI34000? 140ERT85410? 416NHM21234? 416NHM30030A? 416NHM30032A

140XBP00200? 140XBP00300? 140XBP00400? 140XBP00600

140XBP01000? 140XBP01600? 140XBE10000? 140XCA71703

140XCA71706? 140XCA71709? 140CRP93100? 140CRP93200

140CRA93100? 140CRA93200? 140CRA93101? 490NRP95400

975750000? 975951000? ASMBII003? ASMBII004 MA0185100? MA0186100? MA0331000? 520402000? 520422000? MA0329001? 490RIO00211? 520480000? 520614000? 600513000? 490RIO00400? 490RIO0S411? 490RIO00406? 490RIO00411? 490RIO0C411? 600544000?? 600558000? 140CRA21110? 140CRA21120? 140CRA21220

140NOE77101? 140NOE77111? 140NOM21100? 140NOM21200? 140NOM25200? 140NWM10000 140EIA92100? 140NOA62200? 140ESI06210? 140NOC77100? 490NAE91100? 467NHP81100? 490NAD91103? 490NAD91104? 490NAD91105? 490NAC72100? 490NRP25300?? 490NRP25400 490NAA21302? 490NAA27101? 490NAA27102? 490NAA27103? 490NAA27104? 490NAA27106 990NAD21110? 990NAD21130? 990NAD23000 990NAD23010? 990NAD23011? 990NAD23020 990NAD23021? 990NAD23022? 990NAA21510 990NAD21810? 990NAD21830? 990NAD21910 990NAD21930? 990NAD23012? ASMBKT085? ASMBKT185

ASMBPL001? NWBM85C002? NWBM85D008? NWBM85S232? NWBM85S485? NWBP85002? NWRR85001? TSXCUSB485? TSXCUSB232? TSXCUSBMBP? 990NAA26320? 990NAA26350? UNYXCAUSB033 110XCA28201? 110XCA28202? 110XCA28203 140CFA04000? 140CFB03200? 140CFC03200? 140CFD03200? 140CFE03200? 140CFG01600? 140CFH00800? 140CFI00800? 140CFJ00400? 140CFK00400? 140CFU00600? 140CFU08000? 140CFU40000? 140CFX00110? 140CFX00210? 140XCA10206? 140XCA10215? 140XTS00203? 140XTS00206 140XTS00209? 140XTS00212? 140XTS01203? 140XTS01206? 140XTS01209? 140XTS01212? 140XTS10206? 140XTS10215? 140XCP20000? 140XCP40100? 140XCP40200? 140XCP50000? 140XCP51000 ?140XCP60000? 140XCP90000? 140XSM00200? 140XSM01000? 140XTS00100? 140XTS00200? 140XTS00500? 140XTS33200? 990XCP98000? 990XTS00300