IC600BF804输入模块;IC600BF804输入模块;IC600BF804输入模块两个S7-300plc之间的数据交换通信可以有很多方式，根据具体的PLC型号不同，其相应的通信接口也不同，主要有：MPI、PROFIBUSDP和以太网通信。S7通信：通过S7连接的配置实现S7站间和PC站间的数据交换。S7连接的属性：该连接可用于所有S7/M7设备。可用于所有子网(MPI，PROFIBUS，工业以太网)。SIMATICS7/M7-300/400站之间数据的可靠传输(使用“BSEND/BRCV”或“PUT/GET”SFB)。高速，不可靠数据传输取决于对方与时间相关的操作(使用“USEND/URECV”SFB)。在ISO参考过程的第7层上确认对方的数据传输。MPI是西门子开发的用于PLC之间的保密协议，当通信速率要求不高、通信数据不大时可以采用的一种简单经济的通信方式，两个S7-300之间的MPI通信可以采用无组态连接的MPI通信，通过调用SFC67和SFC68通过简单编程来实现无组态的MPI通信，它既可以是双边通信，也可以采用单边通信方式;也可以采用全局数据通信的方式，无需编写程序，在硬件组态时组态所以MPI的PLC站之间的发送区和接收区即可。MPI通信硬件连接仅需1根PROFIBUS网络电缆(含两个网络总线连接器);两个S7-300PLC之间的现场总线通信，根据PLC是否自带DP通信口(如CPU315-2DP自带DP接口)而不同，如果自带DP接口，只需将两台S7-300PLC的DP通信口用PROFIBUS通信电缆连接即可，如果S7-300PLC没有自带DP通信口(如CPU315)，必须配置DP接口模块(如CP342-5)来实现PROFIBUS现场总线通信。而两个S7-300PLC之间的以太网通信有很多种方式，如ISOTransport、ISO-on-TCP、UDP(用户数据协议)、TCP/IP、S7通信，以CPU315-2DP为例，每个PLC需要组态CP343-1以太网模块，通过交换机用带水晶接头的8芯双绞线连接来实现以太网通信，比较简单，也是未来发展方向。DP/DPCouper是把两个PROFIBUSDP网络1和2耦合在一起，在通信的双方有自己***的DP地址，并且通信双方的PROFIBUSDP通信速率可以不一样，通过输入/输出区直接交换通信数据。TELP-8PanasonicMSD011P1EA03ACServoDriverSetMSD021P1EA03workingTEXASINSTRUMENTSPLC500-5055USPP5005055ASEABROWNBOVERIYT204001-BNUSPPYT204001BNTEXASINSTRUMENTSPLC505-6308NSPP5056308TEXASINSTRUMENTSPLC500-5053NSPP5005053TEXASINSTRUMENTSPLC505-4632NSFP5054632TEXASINSTRUMENTSPLC510-2101USPP5102101PanasonicACServoMotorMHMD082G1U750WNewinBoxFreeShipTEXASINSTRUMENTSPLCPM550-400USPPPM550400ASEABROWNBOVERIYB560103-CCUSPPYB560103CCPanasonicACServoDriveMSD1A321EAFreeShipOnePanasonicACServoMotorMBMK042BLAFreeShipPanasonicMHMA102A1GACServoMotorTEXASINSTRUMENTSPLC5TI-1034-1USPP5TI10341Panasonic2.5kWACServoMotorM***252A3JFreeShipTEXASINSTRUMENTSPLC315-DDNSPP315DDTexasInstruments500-5037TEXASINSTRUMENTSPLC505-6408USPP5056408TEXASINSTRUMENTSPLC500-5047AUSPP5005047ATEXASINSTRUMENTS500-2108*NEWNOBOX*TEXASINSTRUMENTSPLC505-7012USPP5057012ASEABROWNBOVERIYB560103-BNUSPPYB560103BNBARBERCOLMANA-11844-1USPPA118441CUTLERHAMMER2D82302G01USPP2D82302G01TEXASINSTRUMENTSPLC500-5013NSFP5005013SIEMENS6ES5-921-3UA12USPP6ES59213UA12PanasonicSERVODRIVERMSD011A1XXFreeShipTEXASINSTRUMENTSPLC525-1104USPP5251104PERCEPTRON310-0785-055MCABLE(RJ45),NNBASEABROWNBOVERIDSCA-190VUSPPDSCA190VPANASONICM***011A34ACSERVOMOTORw/ReducerGearTEXASINSTRUMENTSPLC505-4708NSFP5054708ASEABROWNBOVERIYT221001-LSUSPPYT221001LSTEXASINSTRUMENTSPLCPM550-416USPPPM550416TEXASINSTRUMENTSPLC164-2112NSPP1642112TexasInstruments500-5009Panasonic3.0kWACServoMotor***302D1C(freeshipping)TEXASINSTRUMENTSPLC505-9201NSFP5059201TEXASINSTRUMENTSPLC560-2820NSFP5602820SQUAREDMAL36450-8041NSFPMAL364508041TEXASINSTRUMENTSPLC520-6201USPP5206201PanasonicACServoDriverMBDDT2210003FreeShipMICROMEMORY8086C-N16NSPP8086CN16TEXASINSTRUMENTSPLCVPU-200-3102USPPVPU2003102TexasInstrumentPM550-116KOLLMORGENSEIDEL60WKS-M240/06-​PBUSPP60WK***24006PBPERCEPTRON495-0092USPP4950092TEXASINSTRUMENTSPLC505-6511USPP5056511TEXASINSTRUMENTSPLCMON-4614-***NSFPMON4614***PerceptronDSPFrameGrabber495-019196K495-0192500-0192*new/unused*SIEMENS6ES5-943-7UA11USPP6ES59437UA11TEXASINSTRUMENTSPLC305-25TUSPP30525TFANUCA20B-2001-0060USPPA20B20010060TECHMOTIVETOOL49-4100-00USPP49410000FOXBORO261PKRUSPP261PKRALLENBRADLEY6158-AAAAAZAAZ​ZUSPP6158AAAAAZAAZZPanasonicACServoMotorM***041AJAFreeShipTEXASINSTRUMENTSPLCVPU210-3104USPPVPU2103104ALLENBRADLEY2801-YCUSPP2801YCTEXASINSTRUMENTS500-5047-A5005047AASEABROWNBOVERIYB560103-CHUSPPYB560103CHNEXENGROUP912743NSFP912743LIMITRONKTU-3000NSFPKTU3000PanasonicACServoMotorM***D042S1SFreeShipASEABROWNBOVERIACS601-0016-4-​000B1500801USPPACS60100164000​B2TEXASINSTRUMENTSPLC560-2128USPP5602128TexasInstrument500-5016analogoutputmoduleused9ailablePERCEPTRON9110014USPP9110014ASEABROWNBOVERI126620-004USPP126620004WESTINGHOUSEA202K3CAUSPPA202K3CAASEABROWNBOVERI57770163NSFP57770163BANNERENGINEERINGMGE-4216ANSFPMGE4216ATEXASINSTRUMENTSPLC500-2114NSFP5002114ALLENBRADLEY1770-SBUSPP1770SBM***A042A1HPanasonicACServoMotorNewinBoxFreeShipTEXASINSTRUMENTSPLC46198-2USPP461982PERCEPTRON911-0015TRICAMCONTOURSENSOR,NIBPerceptron495-0294ReplacementCircuitBoard)