High Country Tek DVC80 - 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