Appendix m – can messages format – MoTeC PLM User Manual
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Appendices
Appendix M – CAN Messages Format
Messages 1 to 4 can be optionally transmitted from any PLM unit.
Messages 5 to 10 are only transmitted from a PLM unit configured as a CAN
Collect Master.
Message 1
Byte
Name
Scaling
0
Compound ID – user defined,
default 0
N/A
1:2
Calibrated Sensor Output Value –
user defined, default Lambda
Hi:lo*1 = x.xxxLa (Note 1)
3
Heater duty cycle
Byte*1 = xxx%
4
Device Internal Temperature
Byte*195/10-500 = xxx.xC
5
Zp (Pump cell impedance)
Byte*1 = X ohm
6
Diagnostic Field 1
Sensor RUN
Sensor COLD
Sensor FAULT
Sensor WARM UP
ADC Ref fault
2
4
8
32
64
7
Sensor state
RUN
CONTROL_WAIT
PUMP_WAIT
WARM_UP
NO_HEATER
STOP
PUMP_OFF
0
1
2
3
4
5
6