On Wednesday, 29 July 2020 10:00:01 UTC+10, brisguy foo wrote: > > UPDATE: > > Changed by weewx,conf file to read: > [Vantage] > ... > # Use LOOP2 data in order to get access to wind_chill > loop_request = 2 > > Restarted weewx > > After only an hour or so, I saw that my console was reporting wind-chill > that was 2 to 3 degrees lower than outside temp, but the weewx graph showed > no difference. >
Using the plots to check what is happening can give misleading results; not saying that is the case here but some plots are not generated every cycle and there can be caching issues. Best evidence is to look at what is in the database or loop packets/archive records or look at the database. > > Checked the syslog file today, and at the time of the restart found the > following odd statement: > 16:40:18 raspberrypi weewx[30378]: wxcalculate: The following values will > be calculated: barometer=prefer_hardware, windchill=prefer_hardware, > dewpoint=prefer_hardware, appTemp=prefer_hardware, > rainRate=prefer_hardware, windrun=prefer_hardware, > heatindex=prefer_hardware, maxSolarRad=prefer_hardware, > humidex=prefer_hardware, pressure=prefer_hardware, > inDewpoint=prefer_hardware, ET=prefer_hardware, altimeter=prefer_hardware, > cloudbase=prefer_hardware > > It seems odd that weewx would report it is calculating values that have > been set to 'prefer_hardware', plus I only used that for five parameters, > and weewx is reporting it has been set for several more. > > So now I have two issues: > 1. How can I tell whether LOOP2 packets ate being used (the graph > indicates they are not) > There is no direct way that I know of. I would stop WeeWX and then run it directly so you see the loop packets and archive records on the console. What do you see in the loop packets (lines starting with LOOP:) and archive records (lines starting REC:) on the console? How does windchill compare to outTemp? If you are seeing THSW in the loop packets then WeeWX is receiving the LOOP2 format loop packet, if THSW is not there then I suspect you are still using the LOOP format loop packets. > 2. Why is weewx reporting it is calculating values that have been set to > 'prefer_hardware'? > If WeeWX is calculating windchill it is most likely because windchill is not being received by WeeWX. Change 'prefer_hardware' to 'hardware' for windchill and restart/reload WeeWX. If windchill disappears it will be because WeeWX is not receiving windchill which implies you are still using LOOP format loop packets. @tkeffer. Tom, I see the vantage driver does not log what format loop packet is being used, perhaps it should? Gary > > Thanks, Stan > > > On Monday, July 27, 2020 at 4:47:41 PM UTC-7, brisguy foo wrote: >> >> Thanks for the replies guys! >> >> I did update my conf file as suggested, however I am confused by the >> comment that wind chill "is not in the LOOP or archive record from the >> console". >> >> I know I was able to see wind chill in historical data downloaded from >> the console logger and displayed using WeatherLink. If you are referring to >> the weewx archive, then I am concerned that the not all LOOP 2 data is >> being stored. >> >> Please help me understand if you don't mind. I should be able to see the >> result in a few days anyway, but I'd like to know how this works. >> >> Thanks! >> >> >> >> On Friday, July 24, 2020 at 5:21:48 PM UTC-7, Tom Keffer wrote: >>> >>> Geez, Gary, you're right! So, you would also have to specify LOOP2 >>> packets. See the section [Vantage] >>> <http://www.weewx.com/docs/usersguide.htm#[Vantage]> in the User's >>> Guide. >>> >>> [Vantage] >>> loop_request = 2 >>> >>> >>> -tk >>> >>> On Fri, Jul 24, 2020 at 5:13 PM gjr80 <gjrod...@gmail.com> wrote: >>> >>>> Windchill is only in included in the Davis LOOP2 packet, it’s not in >>>> the LOOP packet or archive record (the defaults) from the console. So >>>> unless you have set WeeWX to use the LOOP2 packet WeeWX will never see >>>> windchill from the console, irrespective of StdWXCalculate settings. >>>> >>>> Gary >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "weewx-user" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to weewx...@googlegroups.com. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/weewx-user/9a8a0b4e-4b27-404b-aec4-72cd8dbc7331o%40googlegroups.com >>>> . >>>> >>> -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/30f4bc94-007a-43d2-873c-67c5419ba72do%40googlegroups.com.
