1794-IB10XOB6输出模块1794-IB10XOB6输出模块两个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。ASEABROWNBOVERIDSQC314BUSPPDSQC314BNewinBox555-1105TexasInstrumentsSiemensTIPLC5551105N14PanasonicDV8C500SDGB5kWACServoDrive(freeshipping)DV8C500SGDBMITSUBISHIFR-A220E-5.5K-​ULNSFPFRA220E55KULTECHMOTIVETOOL49-4100-00USPP49410000PanasonicServoDriverMSDA453A1AFreeShipPanasonicMDDA153A1AACServoDrivertestedSIEMENS6AG4040-0AG30-​0PA0NSFP6AG40400AG300P​A0FANUCA06B-6058-H005USPPA06B6058H005ALLENBRADLEY1336S-BRF50-AN​-EN4-HA2-L5NSFP1336SBRF50ANEN​41OPCON2300A-7502NSFP2300A7502ASEABROWNBOVERIM3AA-100-LB-4NSFPM3AA100LB4TEXASINSTRUMENTSPLC7MT-902NSPP7MT902EMERSONT-60USPPT60ASEABROWNBOVERIYB560103-AM/6NSPPYB560103AM6TEXASINSTRUMENTSPLC505-7028AUSPP5057028AFANUCA16B-1211-0062NSPPA16B12110062TEXASINSTRUMENTSPLC500-5026USPP5005026TEXASINSTRUMENTSPLC5TI-3100USPP5TI3100PanasonicMSD011EAACServoDriveASEABROWNBOVERI57360001-HG/2USPP57360001HG2TexasInstruments500SystemPLCSeriesRack11ModulesASEABROWNBOVERI3BSE005177R000​1NSPP3BSE005177R000​1BYSTRONIC702109USPP702109ASEABROWNBOVERIQK-190-0R6501USPPQK1900R6501ASEABROWNBOVERI57310001-S/5USPP57310001S5TEXASINSTRUMENTS500-5013OUTPUTMODULELOT5005013ASEABROWNBOVERIAF400-30-11-70NSPPAF400301170PANASONICSERVOMOTORMFA040LD2NSKNEWFASTSHIPPINGTEXASINSTRUMENTSPLC535-1212USPP5351212ALLENBRADLEY2755-T4NSFP2755T4ALLENBRADLEY2711P-RDK10CUSPP2711PRDK10CTEXASINSTRUMENTSPLC505-6511NSPP5056511PanasonicMADDT1207003ACServo200-240VACSQUAREDMAL-36400USPPMAL36400XYCOMXVME-661NSFPXVME661TEXASINSTRUMENTSPLC505-4708NSFP5054708NO***ON230260SUSPP230260SPanasonic200WACServoDriveMSD021A1XUFreeShipPerceptron495-0092PCBoardVMEgrapherVGAGraphicsGENERALELECTRIC193W-532ACG06USPP193W532ACG06SANYODENKIRS1L03AZ082USPPRS1L03AZ082ASEABROWNBOVERIRTO08358USPPRTO08358SUMITOMOSEIKINT2044-2A2NSPPNT20442A2BANNERENGINEERINGP4O1.3IUSPPP4O13INewPerceptron926-0127RepeaterAssembly46-650-1229EnclosureMEASUREX08596900USPP08596900PanasonicACServoMotorM***02A1EFreeShipALLENBRADLEY2711-K6C8USPP2711K6C8TEXASINSTRUMENTSPLC560-2820NSFP5602820TexasInstruments510-1101CONTROLLER1/2AMP85/132V47/63HZ25W,5101101TexasInstruments500-5892TEXASINSTRUMENTS2601011*USED*CHINODB1230-000USPPDB1230000TEXASINSTRUMENTSPLC95AD930670800USPP95AD930670800TEXASINSTRUMENTSPLC505-ATM-4120USPP505ATM4120KOLLMORGENINDBDS4A-203J-000​1-202B21PUSPPBDS4A203J00012​0APanasonicACServoMotorM***082H4VFreeShipALLENBRADLEY509-FOD-C1NUSPP509FODC1NTEXASINSTRUMENTSSiemensTIPN560-2128PanasonicMCDDT3520053ACServoDriverFreeShipASEABROWNBOVERI57772158NSPP57772158TEXASINSTRUMENTSPLC560-2122USPP5602122ASEABROWNBOVERIEH300C-1LUSPPEH300C1LTexasInstruments2497284PCBDPM550CMU-7KASEABROWNBOVERIMSB63800LNSFPMSB63800LPanasonic1kWACServoDriverMDDA103A1AFreeShipTEXASINSTRUMENTSPLC500-2151USPP5002151TEXASINSTRUMENTS500-5037-A**ALLENBRADLEY1336S-BRF75-AA​-EN4-HA2-L4USPP1336SBRF75AAEN​43ASEABROWNBOVERI57171847USPP57171847GENERALELECTRICDS3800DOAAUSPPDS3800DOAA)