GE AT600 - Page 105

AT600 User’s Manual 93
Chapter 5. Communication
Command 144 (0x90): Read Unit Group (cont.)
Command 145 (0x91): Read Density Value
This command will read density value in meter.
Table 25: Response Data Bytes for Read Unit Group
Byte Format Description
0 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
Table 26: Command-Specific Response Codes for Read Unit Group
Code Class Description
0 Success No Command-Specific Errors
1Undefined
2 Error Invalid Selection
3-4 Undefined
5 Error Too Few Data Bytes Received
6 Error Device-Specific Command Error
7-127 Undefined
Table 27: Request Data Bytes for Read Density Value
Byte Format Description
0 Unsigned-8 Density type:
1: Actual Density;
2: Reference Density;