ABB TPU2000 Technical Manual page 315

Each data block is a two byte word that has the following bit configuration:
bit 0-13 : data values
bit 14
bit 15
Example:
Data word
8,000
24,384
16,776
49,384
To obtain the reported value column from the data word, a listing for a c routine should look as follows:
long int ConvertData( unsigned short ,unsigned short );
long int report_value;
unsigned short int data_word;
report_value = ConvertData( data_word ,attribute_scale);
{
int scale=1;
if ( data_word & 0x4000 ) /* is sign bit set ? */
{
scale = -1;
}
if ( data_word & 0x8000 ) /* is scale bit set ? */
{
scale *= attribute_scale;
}
return( (data_word & 0x3fff) * scale );
}
6.5 Retransmit the Last Load Profile Data Block ( 3 6 5 )
Same as Report Next Load Profile Data Block except its the previous data sent!
6.6 Report Load Profile Data Header(Last Data) ( 3 6 6 )
This command is used to initialize the unit to report the entire contents of the accumulated load profile.
6.8 Send First Through Fault Record (3 6 8)
Msg byte
1/1
1/2
1/3
2/1
2/2
2/3
3/1
3/2
3/3
4/1
TPU2000/2000R Modbus/Modbus Plus Automation Guide
: sign bit (1=multiply bits 0-13 by -1)
: scale bit (0=multiply bits 0-13 by 1, 1=multiply bits 0-13 by attribute scale)
Report column 1 is profiling attribute #0 (Demand kW-A) and has a dynamic scale = 122
Binary pattern
0001111101000000
0101111101000000
0100000011000100
1100000011000100
Definition
Relay Status (see command 3 4 1, msg 1/1)
Command + Subcommand = 0x68
Total Number of Messages = 30
Param Flag (high byte)
Param Flag (low byte)
Fault Type (element) (See Send First Differential Fault Record, command 3 5 8 for Fault Type
Definitions)
Setting
Fault Number (high byte)
Fault Number (low byte)
Year
Scale Reported value
1 8,000 kW
-1 -8,000 kW
122 23,912 kW
-122 -23,912 kW
305