AT600 User’s Manual 95Chapter 5. CommunicationCommand 146 (0x92): Read Backlight Setting (cont.)Command 152 (0x98): Write Unit GroupThis command will write unit group in meter.Table 32: Command-Specific Response Codes for Read Backlight SettingCode Class Description0 Success No Command-Specific Errors1-5 Undefined6 Error Device-Specific Command Error7-127 UndefinedTable 33: Request Data Bytes for Write Unit GroupByte Format Description0 Unsigned-8 Group index:1: Velocity unit;2: Actual Volumetric unit;3: Standard Volumetric unit;4: Mass unit;5: Totalizer unit;6: Density unit;7: Pipe Dimension;8: Thermal;9: Acceleration;1 Enum unit code