Teltonika FM6320 User Manual page 99

Note: Averaging constant cannot be used with CAN data, because this
information comes in digital format. So in order to prevent data loss, set
Averaging constant parameter to 1.
Most parameters have certain resolution. FEE9 parameter has 0.5L/bit gain, so value that is
sent to server has to be multiplied by 0.5.
Data parsing is preceded by selecting correct message from all available on CAN bus. FMS
standard interface description indicates that fuel consumption is parameter with ID FEE9:
Table 55 FMS standard – fuel consumption
Data Byte 1 Data Byte 2 Data Byte 3
Not used for Not used Not used
FMS- for FMS- for FMS-
Standard Standard Standard
The example indicates how fuel consumption message is selected and how configuration
impacts this selection (Figure 64).
Figure 63 CAN parameter configuration example
00FEE9
65,257
1000 ms
Data Byte 4 Data Byte 5
Total fuel used
Not used 0,5 L/Bit gain
for FMS- 0 L offset
Standard 5.2.5.66
SPN 250
Figure 64 Example
Data Byte 6 Data Byte 7
Total fuel used Total fuel used
0,5 L/Bit gain 0,5 L/Bit gain
0 L offset 0 L offset
5.2.5.66 5.2.5.66
SPN 250 SPN 250
PGN Hex
PGN
Rep. Rate
Data Byte 8 Byte No.
Name
Total fuel used
Values
0,5 L/Bit gain
Values
0 L offset
Values
5.2.5.66
SAE ref
SPN 250
SPN
99