- Traffic analysis menu displays CAN bus load and transfer error number.
- Two types of data are displayed: global and current.
- Current data are refreshed every 500ms.
- Global data are updated only when a current value is bigger than an existing global value. Global data
can be reset by pressing the RESET key
- CAN bus load is a percentage of measurement time period during which the CAN bus is busy transmitting
messages.
- Error counter is an error message percentage out of total number of messages transmitted during
measurement time period. Every and symbol represents 1%.
- symbol represents global error counter maximum, and symbol represents current error
counter maximum.
- Measurement time interval can be changed by pressing UP and DOWN keys (from 10ms to 5000ms).
- Display refresh period is fixed to 500ms. Therefore, it’s obvious that for measurement time periods
shorter than that multiple measurement periods will pass between two screen refreshes. In that case
display will be updated with biggest values from the ones available.
- Expected CAN bus load values vary with number of connected LC100 modules and selected measurement
time period. In general, the values measured during the short time periods will be greater than ones measured
during longer time periods. Reason for that lies in combination of random distribution of messages in time
and described measurement results display method. Therefore, it’s considered normal for bus load to
temporarily go up to 100% for short measurement time periods (10, 20 and 50 ms).
- Current error counter value of 2% or less is not considered problematic.
- Constantly present current error counter value of 5% or more indicates a serious electrical problem on the
CAN bus.
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