LabVIEW8.6 environment, can send and receive tail frame head+ modbus message+ frame data. Easy to modify, the program contains polymorphic function, communication function and a ac load an instance of the function.

RS485-V4
........\AC Load V4.vi
........\AC Load.vi
........\RS232 Data Convent V2.vi
........\RS232 Data Convent.vi
........\RS232 Command to Data Unit.vi
........\RS232 Command.ctl
........\RS232 Decode Data.vi
........\RS232 Received Data.ctl
........\RS232 Serial Data Unit to String.vi
........\RS232 Serial Master Read RLC.vi
........\RS232 Serial Master Read.vi
........\RS232 Serial Receive.vi
........\RS232 Serial String to Data Unit.vi
........\RS232 Serial Transmit.vi
........\RS485 Command Data Unit.ctl
........\RS485 Command Data V2.vi
........\RS485 Command Data.vi
........\RS485 Command to Data Unit.vi
........\RS485 Command.ctl
........\RS485 CRC-16.vi
........\RS485 CRC-CCITT.vi
........\RS485 Data Unit V2.ctl
........\RS485 Data Unit V2_type2.ctl
........\RS485 Data Unit.ctl
........\RS485 Decode Data.vi
........\RS485 Device Parameters.ctl
........\RS485 Serial Data Unit to String.vi
........\RS485 Serial Init.vi
........\RS485 Serial Master Query Read (poly).vi
........\RS485 Serial Master Query Write (poly).vi
........\RS485 Serial Master Query(poly).vi
........\RS485 Serial Master Query.vi
........\RS485 Serial Master.vi
........\RS485 Serial Receive.vi
........\RS485 Serial String to Data Unit.vi
........\RS485 Serial Transmit.vi
........\交流负荷模拟柜485-V2.lvlps
........\交流负荷模拟柜485-V3.lvlps
........\交流负荷模拟柜485-V4.aliases
........\交流负荷模拟柜485-V4.lvlps
........\交流负荷模拟柜485-V4.lvproj

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