1738-IT2IM12***;1738-IT2IM12***;1738-IT2IM12***机械安全是一项复杂的系统工程，需要考虑的因素很多，比如机械设备特点、工艺操作特点、安全设计理念等等。一般来说，安全控制系统应该包括安全输入设备（如急停按钮、安全门限位开关或联锁开关、安全光栅或光幕、双手控制按钮），安全控制电气元件（如安全继电器、安全PLC和安全总线）和安全输出控制（如主回路中的接触器、继电器或阀等）。其中，安全PLC是在应用中值得***关注的产品。所谓安全PLC，就是专门为条件苛刻的任务或安全相关的应用而设计的PLC，在其失效时不会对人员安全或过程安全带来***。在一台安全PLC根据要求达到了特定的可靠性/故障概率等级时，就意味着它具有广泛的自诊断能力，可以监测各个方面的硬件状态、程序执行状态和操作系统状态。此外，安全PLC还必须能够执行标准机构（例如TUV、FM等）认证的必须的故障安全动作，而这些故障安全动作都是根据特定的原则设计，并满足安全标准（如IEC61508和EN954-1等）中定义的要求。另外，安全PLC还可能包括警卫保护预警和权限管理的内容，用来保护安全PLC不受来自外界的干扰。从范围看，实践证明已经采用安全PLC的行业包括汽车、机床、机械、船舶等行业，以及过程工业中的石化、炼油、电厂、锅炉控制和燃烧控制、高压应用等。此外，它还可以在一些远程遥控、无人值守以及维护费用十分昂贵的应用场合（例如大型储罐区）一显身手。TexasInstruments5TI-1034-1NEMATRONCORPIWS3015USPPIWS3015TEXASINSTRUMENTSPLC500-5022USPP5005022PanasonicACSERVOMOTORM***A082A1FFreeShipTEXASINSTRUMENTSPLC505-4916USPP5054916TexasInstrumentsRTU-T058-TTERMINATIONPANELRTUT058TTEXASINSTRUMENTS500-5037-A*USED*ASEABROWNBOVERIACS800-U1-0011​-5+P901USPPACS800U100115P​90ASEABROWNBOVERIACS601-0016-4-​000B1200801USPPACS60100164000​B1ABBASEABROWNBOVERIQIPA-121CONTROLUNITPRESSDUCTORPILLOWBLOCK57306CTI2571TexasInstrumentsSiemensTI2571R2NIOBRARAR&DCORPEPE5-DUSPPEPE5DPERCEPTRONCAMERATRICAMSURFACESENSOR912-0014Siemens/TI575-2103CPUModuleVMEPLCTexasInstruments5752103ASEABROWNBOVERIASC60100065000​B1200000USPPASC60100065000​B1NewinBox505-7028TexasInstruments/Si​emens5057028N741TEXASINSTRUMENTSPLC505-4016ANSFP5054016AFOXBORO130FD-NUSPP130FDNPANASONICM***011A34ACSERVOMOTORw/ReducerGearTEXASINSTRUMENTS5TI-1013SEQUENCERMODULE***XLNT***BALDOR35***98R334G1NSFP35***98R334G1ALLENBRADLEY1336F-BRF50-AA​-EN-HCS2-LA2-L​A3-L4USPP1336FBRF50AAEN​HCPANASONICACSERVOMOTORMDM102Q2VASEABROWNBOVERIACH501-040-4-0​0P2USPPACH501040400P2ASEABROWNBOVERIDPH-07551NSFPDPH07551TEXASINSTRUMENTSPLC2497284USPP2497284SIEMENS6ES5-475-5AA11NSFP6ES54755AA11PanasonicMSD083A1XXSACServoDriverFreeShipKOLLMORGENINDM-605-B-B3USPPM605BB3SIEMENS6ES5-155-3UA21USPP6ES51553UA21SQUAREDKHL3612517DC16​16NSPPKHL3612517DC16​16TEXASINSTRUMENTSPLC5TI-1031-1USPP5TI10311ASEABROWNBOVERI3HAA3563-AMA/0USPP3HAA3563AMA0INDRAMATDDS2.1-A150-DUSPPDDS21A150DPanasonicMSD083A2XXACSERVODRIVERTEXASINSTRUMENTSPLC505-4308NSPP5054308TEXASINSTRUMENTSPLC505-6850BNSFP5056850BPANASONICMSD011P1EUSPPMSD011P1EMITSUBISHIMC210-CENSFPMC210CETexasInstrumentsRTU-M056-AMICROCONTROLLERRTUM056APanasonicACServoMotorM***02A1EFreeShipTEXASINSTRUMENTS5TI-1034-2SEQUENCERMODULE***XLNT***ALLENBRADLEY1336F-BRF20-AN​-EN-GMS1NSPP1336FBRF20ANEN​GMMOOGG415-625USPPG415625GENERALELECTRICDS3800HIOA1C1EUSPPDS3800HIOA1C1ETEXASINSTRUMENTSPLC500-5194USPP5005194MEMOTEC30033107-000USPP30033107000PanasonicACServoMotorM***D012S1TFreeShipTEXASINSTRUMENTSPLC55CI8602700017USPP55CI8602700017TEXASINSTRUMENTSPLC2223041-3USPP22230413GENERALELECTRICDS3800DMPCUSPPDS3800DMPCTEXASINSTRUMENTSPLC500-5047AUSPP5005047ATEXASINSTRUMENTSPLC500-2102USPP5002102PanasonicMDDA153A1AACServoDrivertestedTexasInstruments560-2120TEXASINSTRUMENTSPLC120-1112NSFP1201112SQUARED30528-001-57NSFP3052800157ALLENBRADLEY8000-MDBUSPP8000MDBSEIKICOLTDINO-11-10-07-0​4-01BUSPPI***110070401BASEABROWNBOVERIYT212001-USPPYT212001TexasInstruments505-4532PanasonicMatsushitaACSERVODRIVERMSD011P1EFreeShipASEABROWNBOVERID***B-137USPPd***b137PERCEPTRONCAMERATRICAMSURFACESENSOR912-0007TEXASINSTRUMENTSHIGHSPEEDPULSEINPUTMODEL500-5023ASEABROWNBOVERIEH175C-1NSFPEH175C1ALLENBRADLEY284D-FHD6P0D-2​5-CR-3NSFP284DFHD6P0D25C​R3JOHNSTONEPUMPCOMPANY301-033C38USPP301033C38ELECTROCRAFT9101-2161USPP91012161BERGERLAHRKIP-550-0301USPPKIP5500301TexasInstruments5TI-1031-1LUCENTTECHNOLOGIESD-CI-B2USPPDCIB2ASEABROWNBOVERIDSQC-313USPPDSQC313TEXASINSTRUMENTSPLC505-CP2572USPP505CP2572ASEABROWNBOVERIYB161102-BUNSPPYB161102BUPanasonicM***D042S1AACServoMotorNIBFreeShipOnePANASONICACSERVODRIVERMADA01311A79FreeShipPanasonic/NaisServoMotorM***D082P1UNIB!)