Profibus System Integration PDF 4.03MB - Schneider Electric

Software DesignIntroductionAn instrumentation management system must be capable of 3 types of action:• Treatment: The ability to read recorded measurements and apply regulation andcontrol algorithms.• Diagnosis: The ability to track and analyze process operations and display thecorresponding output values.• Adjustment: The ability to optimize the operations process.Asset management stationSCADAstationEngeneering stationAsset management(FieldCare, Packware...)FDTVijeo Citect(runtime)OFSUnity ProVijeo Citect(buildtime)Bus master configurator(Sycon, Prosoft, ...)EthernetDTMGSDFilesI/O, actuatorsPLCSensorPhysical blockFunctionblockPROFIBUSBusmasterDDTDDTDFBDFBPrincipleThe concept used by all architectures recommended here is based on programmingobjects.At the PLC level:Execution of the functions is ensured by DFB blocks associated with the DDTstructures, representing the data of the entire network and all equipments attached tothe network.45