Appendix - "Bus analysis" mode
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12.10.3. Measurements (LIN)
Diagnosis
Use this table to troubleshoot problems on a measurement :
Measurement
Description
Diagnosis
VBat
Measurement of the signal high level
Too many devices on the bus
Cable length not compliant with standard
Faulty power supply
Faulty chassis-ground
Incorrectly connected chassis-ground
Termination problem
Junction connection (oxidation, bad contact)
Significant noise (check the cable route, ground
braid not connected, faulty chassis-ground, etc.)
…
Time Data
Measurement made using the bit time
total
Unsuitable or damaged cable
Significant noise (check the cable route, ground
braid not connected, faulty chassis-ground, etc.)
…
Time Rise
Rise time between 10% and 90% of
the signal amplitude expressed in
Volt/second
Unsuitable or damaged cable (the rise and fall
times increase with the cable impedance)
…
Time Fall
Fall time between 90% and 10% of
the signal amplitude expressed in
Volt/second
Delta TRise TFall
Difference between the rise time at
10% 90% and the fall time at 90%
10%
Unsuitable or damaged cable (the rise and fall
times increase with the cable impedance)
Significant noise (check the cable route, ground
braid not connected, faulty chassis-ground, etc.)
…
Summary of Contents for OX9302-BUS
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