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FS-8700-01_Modbus_RTU_(T28700-01) Driver Manual Page 10 of 21
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.FieldServer.com
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4.4.4. Map Descriptor Examples.
// Client Side Map Descriptors
// Note: All three examples below are addressing the same Modbus registers.
// For Nodes where Address_Type is ADU
Map_Descriptors
Map_Descriptor_Name, Data_Array_Name, Data_Array_Offset, Function, Node_Name, Data_Type, Address, Length, Scan_Interval
CMD_AI_01, DA_AI_01, 0, RDBC, MODBUS DEVICE1, Input_Register, 1, 20, 1.000s
CMD_AO_01, DA_AO_01, 0, RDBC, MODBUS DEVICE1, Holding_Register, 1, 20, 1.000s
CMD_DI_01, DA_DI_01, 0, RDBC, MODBUS DEVICE1, Discrete_Input, 1, 20, 1.000s
CMD_DO_01, DA_DO_01, 0, RDBC, MODBUS DEVICE1, Coil, 1, 20, 1.000s
// For Nodes where Address_Type is PDU
Map_Descriptors
Map_Descriptor_Name, Data_Array_Name, Data_Array_Offset, Function, Node_Name, Data_Type, Address, Length, Scan_Interval
CMD_AI_02, DA_AI_02, 0, RDBC, MODBUS DEVICE2, FC04, 0, 20, 1.000s
CMD_AO_02, DA_AO_02, 0, RDBC, MODBUS DEVICE2, FC03, 0, 20, 1.000s
CMD_DI_02, DA_DI_02, 0, RDBC, MODBUS DEVICE2, FC02, 0, 20, 1.000s
CMD_DO_02, DA_DO_02, 0, RDBC, MODBUS DEVICE2, FC01, 0 20, 1.000s
// For Nodes where Address_Type is Modicon_5digit.
Map_Descriptors
Map_Descriptor_Name, Data_Array_Name, Data_Array_Offset, Function, Node_Name, Address, Length, Scan_Interval
CMD_AI_03, DA_AI_03, 0, RDBC, MODBUS DEVICE3, 30001, 20, 1.000s
CMD_AO_03, DA_AO_03, 0, RDBC, MODBUS DEVICE3, 40001, 20, 1.000s
CMD_DI_03, DA_DI_03, 0, RDBC, MODBUS DEVICE3, 10001, 20, 1.000s
CMD_DO_03, DA_DO_03, 0, RDBC, MODBUS DEVICE3, 00001, 20, 1.000s