Campbell Scientific PWS100 Present Weather Sensor - Manual (Page 55)

Section 7. Operation
7.4.1.35 Message Field 154 Watchdog Count, Maximum Particles Per Second, Particles
Not Processed, Time Lag
This field will output a watchdog count which indicates the number of resets of
the system due to error, the maximum number of particles stripped per second
over the measurement interval, the number of particles stripped in real time but
not processed and a time lag in seconds indicating how far behind processing
has got at some point during the measurement interval.
7.4.1.36 Message Field 155 Processing Statistics
Shows the statistical distribution of particle processing methods used on each
particle and is generally intended for debug purposes only; contact Campbell
Scientific for details.
7.4.1.37 Message Field 156 Year, Month, Day
This field will output the year, month, and day.
7.4.1.38 Message Field 157 Hours, Minutes, Seconds
This field will output hours, minutes, and seconds.
7.4.1.39 Message Field 158 Averaged Corrected Visibility Voltage and Averaged Upper
Head Voltage
Shows the average voltage (mV) value corresponding to the corrected visibility
value (i.e., adjusted for atmospheric conditions) and the average mV value for
the upper head.
7.4.1.40 Message Field 159 Output a CCITT CRC-16 (checksum) of the message
This outputs a two byte checksum in hex format (four ASCII characters). This
is normally included at the end of a message to allow the validity of the
message to be checked. The CRC some not include the checksum itself or
STX/ETX characters.
7.4.1.41 Message Field Error
If “Error - message field nnn not valid” is output then this indicates the
message you have defined has an invalid field which is not in the list above.
You must go and check / re-edit your message definition.
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