High Country Tek DVC80 User Manual
Page 103
P/N: 021-00154, Rev. A.6 - updated for V4.7 Tools
Page | 103
Priority
3 Not Required for Receive Data
Data Length
5
Message Data
EEC1.Status_EEC1
- Name to access byte 1 of message
EEC1.Drive_DMD_Eng - Name to access byte 2 of message
EEC1.Actual_Eng
- Name to access byte 3 of message
EEC1. EngRPML
- Name to access byte 4 of message
EEC1. EngRPMH
- Name to access byte 5 of message
EEC1. NoRSP
- Name to access No Response Status bit
Code Example
Dim EngRpm as Uint
‘Define storage location for RPM Calc J1939
Dim EngTorque as Uint
‘Define storage location - Actual Engine Torque
EngRpm = (EEC1.EngRPMH * 256 + EEC1.EngRPML) / 8 ‘Convert from 0.125 RPM to 1 RPM per bit
If (EEC1.Actual_Eng > 124) then
‘Test to see if positive %Torque
‘ -note %Torque Resolution 1% pbit, -125% offset
EngTorque = EEC1.Atual_Eng – 125 ‘Engine Torque % - offset of 125% = positive %
Else
EngTorque = 0 ‘Use 0% when negative % detected
End if
Note: The Engine RPM example first converts two bytes into one number and then converts from 0.125 RPM
per bit into 1 RPM per bit.
SAE J1939 Message Examples
SAE
J1939
Descripti
on
Parameter PDU2
(PF), (PS)
PGN
Decimal
PGN
Hex
Start
Byte
Data
Length
Value Units Offs
et
Accelerator Pedal Position
240, 3
61443
F003
2
1
0.4
%/bit
0
Elec Eng
Cont
#2 –
EEC2
Percent Load at Current
Speed
240, 3
61443
F003
3
1
1
%/bit
0
Actual Engine &% torque
240, 4
61444
F004
3
1
1
%/bit
-125
Elec Eng
Cont
#1 –
EEC1
Engine Speed
240, 4
61444
F004
4
2
0.125
Rpm/bit
0
Trip Distance
254, 224
65248
FEE0 1
4
0.125 km/bit 0
Vehicle
Distance
Total Vehicle Distance
254, 224 65248 FEE0
5 4
0.125
km/bit 0
Engine
Hours,
Revolutio
ns
Total Engine Hours
254, 229
65253
FEE5
1
4
0.05
H/bit
0
Trip Fuel
254, 233
65257
FEE9
1
4
0.5
L/bit
0
Fuel
Consump
tion
Total Fuel Used
254, 233
65257
FEE9
5
4
0.5
L/bit
0
Engine Coolant Temp
254, 238
65262
FEEE
1
1
1
C/bit
-40
Fuel Temperature
254, 238
65262 FEEE
2 1
1
C/bit -40
Engine Oil Temperature
254, 238
65262
FEEE
3
2
0.0331
25
C/bit -273
Engine
Temperat
ure
Engine Intercooler
Temperature
254,
238 65262 FEEE
7 1
1
C/bit -40
Fuel Delivery Pressure
254, 239
65263
FEEF
1
1
4
kPa/bit
0
Engine
Fluid /
Engine Oil Level
254, 239
65263
FEEF
3
1
0.4
%/bit
0