OMEX ECUs
Supported ECUs
- OMEX 100 & 500
- OMEX 600 & 710
OMEX 100 & 500
Note:
Requires ECU firmware version G1.31
Header byte must be set to Ox55
Data length = 10 bytes + header and checksum
| ECU Name
| Race Technology message
| Race Technology Default name
| Race Technology VAR number
| Resolution
|
| RPM
| Engine RPM
| RPM
| VAR_0010
| 25RPM
|
| Load
| Aux 26
| Auxiliary 1
| VAR_2025
| 0.1%
|
| Throttle Position
| Aux 1
| Throttle Position
| VAR_2000
| 0.1%
|
| Intake Air Temperature
| Temperature 1
| Temperature 1
| VAR_1000
| 0.1°C
|
| Water Temperature
| Temperature 8
| Water Temperature
| VAR_1007
| 0.1°C
|
| Battery Voltage
| Misc 3
| Battery Voltage
| VAR_4002
| 0.01 V
|
| Accel Fuel
| Measured Time 1
| Fuel Inj 1 PW on
| VAR_2500
| 1ms
|
| Fuel Pulse
| Measured Time 2
| Fuel Inj 2 PW on
| VAR_2501
| 1ms
|
| Ignition Angle
| Angle 2
| Ignition Angle
| VAR_3001
| 0.1°
|
OMEX 600 & 710
The OMEX 600 and 710 ECUs with V0.70 firmware are fully configurable in terms of which channels of data are transmitted and at what data rate. To be compatible with the Race Technology ECU decoder the ECU must be set up to output the following channels of data:
| Byte
| Name
| Units
| Scalar
| Offset
| Min
| Max
| Signed?
|
| 1
| Air temp
| oC
| 1
| 0
| -128
| 127
| Y
|
| 2
| Air pressure
| kPa
| 0.5
| 0
| 0
| 127.5
| N
|
| 3
| Battery
| Volts
| 0
| 0
| 0
| 15.93750
| N
|
| 4
| Fuel 1 PW
| µs
| 512
| 0
| 0
| 131070
| N
|
| 5
| Spark adv(map)
| o
| 0.3515
| -30
| -30
| 59.64844
| N
|
| 6
| RPM 50
| rpm
| 50
| 0
| 0
| 12799.80469
| N
|
| 7
| MAP as Load
| kPa
| 0.3922
| 0
| 0
| 99.99847
| N
|
| 8
| Coolant
| oC
| 1
| 0
| -128
| 127
| Y
|
| 9
| Lambda1
| Lambda
| 0.0078125
| 0
| 0
| 1.992188
| N
|
| 10
| Throttle
| %
| 0.3922
| 0
| 0
| 99.99847
| N
|
| 11
| Lambda2
| Lambda
| 0.0078125
| 0
| 0
| 1.992188
| N
|
| 12
| Lambda Target
| Lambda
| 0.0078125
| 0
| 0
| 1.992188
| N
|
Baud rate is set to 38400baud with standard checksum. Start byte must be set to 0x00
The data is translated in the following manner:
| ECU Name
| Race Technology message
| Race Technology Default name
| Race Technology VAR number
| Resolution
|
| Intake Air Temperature
| Temperature 1
| Temperature 1
| VAR_1000
| 0.1°C
|
| Manifold Air Pressure
| Pressure 5
| Boost Pressure
| VAR_3504
| 1 mBar
|
| Battery Voltage
| Misc 3
| Battery Voltage
| VAR_4002
| 0.01 V%
|
| Fuel Pulse Width
| Measured Time 1
| Fuel Inj 1 PW on
| VAR_2500
| 0.1%
|
| Spark Advance
| Aux 26
| Auxiliary 1
| VAR_2025
| 0.1%
|
| RPM
| Engine RPM
| RPM
| VAR_0010
| 25 RPM
|
| MAP Load
| Aux 27
| Auxiliary 2
| VAR_2026
| 1 mBar
|
| Water Temperature
| Temperature 8
| Water Temperature
| VAR_1007
| 0.1°C
|
| Lamda 1
| Misc 1
| Lambda 1
| VAR_1000
| 0.1 Lambda
|
| Throttle Position
| Aux 1
| Throttle Position
| VAR_2000
| 0.1%
|
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