Sandaysoft

Added the "Logging=1" to the .ini file you mentioned, and restarted Cumulus. Here are a few sample lines from the debug.log file. Notice upon startup the correct bardata alogrithm goes to work...

0014.336 : MSLP=0 SP=27.4713859558105 AP=30.1001625061035 pIn=29.9939994812012 eFt=2522 mtF=69 C=5.40000009536743
0015.990 : 5/12/2011 11:55:00 AM Minute timer 55
0015.990 : Adding LH entry, ts = 11:55:00 AM raintot = 16.5699996948242

I've also turned off the "1-min update". After 15-minutes of running this new setup, the bardata still appears to be "stuck."

Yes - so the first 'bardata' works OK, but subsequent ones don't. This suggests to me an issue between the DLL and the firmware, rather than the USB adapter.

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Steve
Sanday Weather
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Am also having trouble with pressure readings being sent to CWOP. They are not changing. The pressure readings to wunderground.com are changing and good.
Am using 1.9.1 on Windows7 64 bit with a Vantage Pro 1 with serial port. I was using an earlier version of Cumulus on an XP 32 bit machine and it seems ok. The problems started with the 1.9.1 on the new machine, but don't know if its the Windows7 64 bit or the 1.9.1. Please tell me where I can download 1.8.9 to test on my new machine.

I don't keep old versions of Cumulus, but someone else may have a copy.

Alternatively, you could install 1.9.2 (which has a little more diagnostics for failed 'barread' commands) and turn on the debug logging in cumulus.ini as described earlier in the thread. The debug.log file would then at least show whether it's the same problem, if nothing else. What version of firmware does your console have?

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Steve
Sanday Weather
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Am using Rev B from 2006.

Steve may not thank me for this as I know he only supports the latest version, but you could try the Wayback machine, which seems to have the downloads back to 2008 archived... http://wayback.archive.org/web/*/http:/ ... /downloads

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Mark
Wilmslow Astro Weather

Interesting. Thanks. I'll give it a try.

Loaded 1.9.2. CWOP pressure still stuck. Loaded 1.9.0 build 958 and CWOP pressure is reporting fine...not stuck.

If you zip up the diags folder and attach it, I'll see if I can see anything.

I've looked at the code that reads the barometer data in 1.9.0 and compared it with the current code; it's exactly the same, and 1.9.0 uses the same Davis DLL as 1.9.1 and 1.9.2. So it's hard to see why one works on your system and not the other.

Edit: Do you have '1-minute barometer update' selected? If so, you could try unsetting that and restarting Cumulus.

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Steve
Sanday Weather
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I've done a small change in build 1016 which might help. But as I have no idea what the problem is, and I can't reproduce it, confidence is low. But I've also added more diagnostics to the debug log which might help get closer to understanding the problem.

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Steve
Sanday Weather
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Steve,
was this issue ever resolved? I have exacly the same problem when attempting auto updates to the Met Office WOW site, ie the sea level pressure is correct initially but stays at the same value for subsequent updates. My VP2 is new so should have the latest firmware etc. I have no serial ports on my PC so have switched on the CP210X USB to Serial Converter. Apart from this Cumulus works fine, logs everything fine!
Peter

No, it wasn't, but your problem is not the same problem, that only affects CWOP which requires altimeter pressure. WOW uses sea level pressure, as displayed on the main screen.

Please do the following:

1. Turn on the debug log, leave to run for a while (several WOW updates), then attach the debug.log file.
2. Zip up the diags folder and attach it.
3. Give a link to your WOW station page
4. Tell me what the pressure reading actually was at the time of each WOW update.

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Steve
Sanday Weather
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Hi Steve,

I followed your instructions and left the auto updating running for 5 mins. Diag folder and debug.log attached. These are the readings of SLP in my Dec11log
1716 999.63
1717 999.56
1718 999.46
1719 999.43
1720 999.43
On WOW they all appeared as 999.66
http://wow.metoffice.gov.uk/tabulardata ... oShow=mslp

Thanks, Peter

I hadn't realised that you were uploading to WOW every minute and the pressure was only staying on the same value for a few minutes. It happens because WOW requires pressure in inHg, and I convert and then round to 2 dp. So all of those pressure figures you quote are sent as the same value (29.52). I suppose I could send 3 dps...

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Steve
Sanday Weather
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Yes, I try to send readings every minute, the VP2, being a new version, records pressures every minute, but looking at the weatherlink values in inches
1716 29.519
1717 29.517
1718 29.514
1719 29.513
1720 29.513
the first two if rounded to 2dp would be displayed as 999.66 but the following three should be 999.32?

Peter