Service, maintenance and technical support
64 Snow depth sensor SHM 31, V2.1
Hardware error in the interface
Incorrect value in the interface communication (SIO parity error)
SIO overflow; check time for output signals in application software
SIO framing error; serial interface parameter not set correctly to 8N1
Evaluation routine: In some cases, measurements in the calculation interval were
ignored because they would have exceeded the maximum permitted change in snow
Evaluation routine: The most recently valid snow depth was output, as all
measurements in the calculation interval would have exceeded the maximum
permitted snow depth change.
Measurement was cancelled by ‘MEN’
No valid telegram available yet (e.g. after starting the measurement with ‘MST’)
Evaluation routine could not read settings
Evaluation routine has not received any data from the laser
Evaluation routine has no valid laser temperature values
Evaluation routine has no valid block temperature values
Evaluation routine has no valid outside temperature values
Evaluation routine has no valid laser distance measurement values
Evaluation routine: G-sensor vector is an invalid length
Evaluation routine is using the reference angle, as the current angle is invalid
Evaluation routine: Signal calibration: signal_high <= signal_low
Evaluation routine: Signal calibration: Signal too small
Evaluation routine: Signal calibration: Signal too large
Evaluation routine: Signal calibration: no angle correction, as angle > 90 degrees
Evaluation routine: channel_average_count too large
Evaluation routine could not initialise ring buffer for avg / min / max channels
Table 27: Error codes
13.4. UMB status codes
The UMB status codes are also used for error and status analysis. A description can be found in
the general UMB description.
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