weewx.4.6.0: no windrun calculation after update

[David Schulz]

hi,

since the update to 4.6.0, i have no windrun calculation. it only outputs 0.

via $day.windrun.sum / $current.windrun there are no more values.

nothing changed on the weewx.conf and i see no errors in the syslog.

[StdWXCalculate]

[[Calculations]]   

windrun = prefer_hardware

[David Schulz]

problem occurs even with a completely new installation.

 echo "SELECT dateTime, windrun FROM archive" | sqlite3 weewx.sdb
1644146400|0.0
1644146700|0.0
1644147000|0.0
1644147300|0.0  

[Karen K]

First I would change prefer_hardware by software and hardware in turn and see what happens. Is there a difference in behavior?

Then you may want to set debug high enough to see the LOOP packets in syslog. What wind related values are there?

[David Schulz]

windrun = software

Solved the problem and the behavior looks the same.

echo "SELECT dateTime, windrun FROM archive WHERE dateTime > 1644154200" | sqlite3 weewx.sdb
1644154320|0.171428571428571
1644154440|0.227210884353742
1644154560|0.25578231292517
1644154680|0.199319727891156
1644154800|0.218421052631579
1644154920|0.250340136054422

thx.

[Tom Keffer]

Glad you found a workaround, but this is clearly not right. I've opened up issue #737 to track.

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[David Schulz]

Thank you. I have already replied to this on Github. Same / similar problem exists with ET as well. I also had to change from prefer_hardware to software, otherwise a 0 or 0.0 is always written to the DB, even though I don't have the value in use.