Thanks Steve. So in essence all I would have to do is shut down Cumulus for a while and fire up VWS at least once every couple of weeks to keep it up to date?steve wrote:You can. The station doesn't delete data when it's been downloaded, and doesn't keep track of which software downloaded what and when. You can repeatedly download the same logger data into different programs.RayProudfoot wrote:The biggest issue if you don't install VirtualVP is the data in the data logger. Once you've downloaded it into Cumulus you can't download the same data into VWS.
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Latest Cumulus MX V4 release 4.4.2 (build 4085) - 12 March 2025
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
If you are posting a new Topic about an error or if you need help PLEASE read this first viewtopic.php?p=164080#p164080
Stoooopid Questions
-
Grumpy Moose
- Posts: 61
- Joined: Sat 14 Apr 2012 5:43 am
- Weather Station: Davis VP2
- Operating System: Win 7
- Location: Anchorage, Alaska
- Contact:
Re: Stoooopid Questions

-
Grumpy Moose
- Posts: 61
- Joined: Sat 14 Apr 2012 5:43 am
- Weather Station: Davis VP2
- Operating System: Win 7
- Location: Anchorage, Alaska
- Contact:
Re: Stoooopid Questions
Well, I KNEW THIS WAS GOING TO HAPPEN.
Tried to start my install of Cumulus.
First thing was to run the CP210x Serial Converter.
Right off the bat I get the "cannot find manufacturing.dll" error
I did remember reading about this, but in all the old threads I've found (here and on other boards) plenty of people talk about it - but NO ONE OFFERS A WORKABLE SOLUTION.
Been flailing over this for a couple hours now.
I'm pretty much ready to throw in the towel for good.
Oh, and did I mention I KNEW THIS WAS GOING TO HAPPEN.
Tried to start my install of Cumulus.
First thing was to run the CP210x Serial Converter.
Right off the bat I get the "cannot find manufacturing.dll" error
I did remember reading about this, but in all the old threads I've found (here and on other boards) plenty of people talk about it - but NO ONE OFFERS A WORKABLE SOLUTION.
Been flailing over this for a couple hours now.
I'm pretty much ready to throw in the towel for good.
Oh, and did I mention I KNEW THIS WAS GOING TO HAPPEN.

-
Grumpy Moose
- Posts: 61
- Joined: Sat 14 Apr 2012 5:43 am
- Weather Station: Davis VP2
- Operating System: Win 7
- Location: Anchorage, Alaska
- Contact:
Re: Stoooopid Questions
[/color]OK, disregard my last tantrum. I actually got this thing to work! I was just about to give up, but stumbled upon this solution in one last gasp of desparation!
Steve - here is a step by step description of converting a Davis VP2 from USB to serial mode. Feel free to add/share this anywhere you see fit.
1. Disregard any information about downloading a CP210X driver from Davis or directly from Silicon Labs. This is a pathway to insanity.
2. Go to the Davis website and download the latest version of the WeatherLink Updater at: http://www.davisnet.com/support/weather ... _sftwr.asp
3. Disconnect the Data Logger
4. Run the updater program
5. The Updater will install the "manufacturing.dll" and the CP210X Serial Converter
6. Reconnect the Data Logger
7. Go to your Start Menu and run the "CP210X USB to Serial Converter" in the WeatherLink Group
8. Go to Control Panel -> System -> Hardware -> Device Manager
9. Click on Ports
10. Click on Silicon Labs CP210x USB to UART Bridge
11. Select properties
12. Click on Port Settings
13. Set to 19200 (if not already)
14. Note the Com Port number also
15. Procede with Cumulus Install
Note. If you don't know your data logger Archive Interval Setting, run the WL setup screen to find/set it to the desired interval. Unfortunately, if you change the setting it will flush the Archive Memory. I guess this is the price of forgetfulness.
Updated per the other thread. We now know this method will NOT work if you have never installed a registerd copy of WeatherLink Before.
Hope this helps.
Now on to configuting Cumulus...
Steve - here is a step by step description of converting a Davis VP2 from USB to serial mode. Feel free to add/share this anywhere you see fit.
1. Disregard any information about downloading a CP210X driver from Davis or directly from Silicon Labs. This is a pathway to insanity.
2. Go to the Davis website and download the latest version of the WeatherLink Updater at: http://www.davisnet.com/support/weather ... _sftwr.asp
3. Disconnect the Data Logger
4. Run the updater program
5. The Updater will install the "manufacturing.dll" and the CP210X Serial Converter
6. Reconnect the Data Logger
7. Go to your Start Menu and run the "CP210X USB to Serial Converter" in the WeatherLink Group
8. Go to Control Panel -> System -> Hardware -> Device Manager
9. Click on Ports
10. Click on Silicon Labs CP210x USB to UART Bridge
11. Select properties
12. Click on Port Settings
13. Set to 19200 (if not already)
14. Note the Com Port number also
15. Procede with Cumulus Install
Note. If you don't know your data logger Archive Interval Setting, run the WL setup screen to find/set it to the desired interval. Unfortunately, if you change the setting it will flush the Archive Memory. I guess this is the price of forgetfulness.
Updated per the other thread. We now know this method will NOT work if you have never installed a registerd copy of WeatherLink Before.
Hope this helps.
Now on to configuting Cumulus...
Last edited by Grumpy Moose on Mon 16 Apr 2012 8:53 pm, edited 1 time in total.

-
RayProudfoot
- Posts: 3602
- Joined: Wed 06 May 2009 6:29 pm
- Weather Station: Davis VP2 with Daytime FARS
- Operating System: Windows XP SP3
- Location: Cheadle Hulme, Cheshire, England
- Contact:
Re: Stoooopid Questions
Well done Moose. I'm pleased it worked for you. As I said, it was nearly 3 years ago so my memory was a little muddy on the precise procedure I used.
Time to change your handle to Happy Moose!
Time to change your handle to Happy Moose!
-
Grumpy Moose
- Posts: 61
- Joined: Sat 14 Apr 2012 5:43 am
- Weather Station: Davis VP2
- Operating System: Win 7
- Location: Anchorage, Alaska
- Contact:
Re: Stoooopid Questions
I can always find something to complain about!RayProudfoot wrote:Time to change your handle to Happy Moose!

-
Grumpy Moose
- Posts: 61
- Joined: Sat 14 Apr 2012 5:43 am
- Weather Station: Davis VP2
- Operating System: Win 7
- Location: Anchorage, Alaska
- Contact:
- paleoguy
- Posts: 11
- Joined: Thu 27 Oct 2011 2:29 pm
- Weather Station: Davis Vantage Pro (Cabled)
- Operating System: XP
- Location: New York State
Re: Stoooopid Questions
G.M.-
Congrats on your persistence; I am about to embark on the same journey. I've been screwing around with my new WL and datalogger since receiving it, yesterday...to no avail, aka working with Cumulus.
Are there any addendums to your instructions? Still happy with it?
Many thanks for breaking trail.
Congrats on your persistence; I am about to embark on the same journey. I've been screwing around with my new WL and datalogger since receiving it, yesterday...to no avail, aka working with Cumulus.
Are there any addendums to your instructions? Still happy with it?
Many thanks for breaking trail.
-
Grumpy Moose
- Posts: 61
- Joined: Sat 14 Apr 2012 5:43 am
- Weather Station: Davis VP2
- Operating System: Win 7
- Location: Anchorage, Alaska
- Contact:
Re: Stoooopid Questions
Yes, quite happy with my new toy!paleoguy wrote:G.M.-
Congrats on your persistence; I am about to embark on the same journey. I've been screwing around with my new WL and datalogger since receiving it, yesterday...to no avail, aka working with Cumulus.
Are there any addendums to your instructions? Still happy with it?
Many thanks for breaking trail.
I've got both Cumulus and VWS running on the same Comm Port (not simultaneously of course). I usually keep Cumulus running all day and just shut it down long enough to start VWS and update all of it's pages.
Most of my time so far has been setting up my website. Stll has a few bugs, but I'm slowly getting there. The next main task is to set up the realtime gauges, and get my webcams online:
http://www.ak-image.com/weather/index.htm
Where are you having trouble? Do you have Weather Link or VWS running properly? Once those are working, you should only need to configure Cumulus to use the same Comm Port.

- steve
- Cumulus Author
- Posts: 26672
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Stoooopid Questions
You definitely need to get it working with WL - in serial mode - first, and then it should work with Cumulus with the same settings.
Steve
- paleoguy
- Posts: 11
- Joined: Thu 27 Oct 2011 2:29 pm
- Weather Station: Davis Vantage Pro (Cabled)
- Operating System: XP
- Location: New York State
Re: Stoooopid Questions
No, I can't get WL to work in serial mode. I've deleted and re-installed about 5 times, now...(REALLY!)...setting it up initially with serial mode but then it requires a COM port...that I can't seem to find on a USB computer. I'm thinking that that's where the silicon whatchamacallit comes in?
- steve
- Cumulus Author
- Posts: 26672
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Stoooopid Questions
Yes, that right. I think the WL install should have copied the Virtual Serial Port drivers onto your PC so you can install them.
Steve
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Grumpy Moose
- Posts: 61
- Joined: Sat 14 Apr 2012 5:43 am
- Weather Station: Davis VP2
- Operating System: Win 7
- Location: Anchorage, Alaska
- Contact:
Re: Stoooopid Questions
Did you check which version of WL came on your CD? That's the problem I had. My version of WL was older and didn't have the Silicon driver and the correct dll.paleoguy wrote:No, I can't get WL to work in serial mode. I've deleted and re-installed about 5 times, now...(REALLY!)...setting it up initially with serial mode but then it requires a COM port...that I can't seem to find on a USB computer. I'm thinking that that's where the silicon whatchamacallit comes in?

- steve
- Cumulus Author
- Posts: 26672
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Stoooopid Questions
So, having installed a version of WL, following your procedure should then work.
Steve
- paleoguy
- Posts: 11
- Joined: Thu 27 Oct 2011 2:29 pm
- Weather Station: Davis Vantage Pro (Cabled)
- Operating System: XP
- Location: New York State
Re: Stoooopid Questions
WHEW!!! Yes, my faithful old VP is now clicking merrily along with my/our beloved Cumulus. Many, many thanks to G.M. and, of course, to Steve. Even with the list, I was able to make many wrong turns, but all's well etc. etc. One very small suggested change to the list would be that the datalogger updater is actually called something like 'Weatherlink Update 6.0'. Minor to ordinary folks, perhaps, but formidable for flounderings like myself.
Now to get back to rebuilding my CWOP, etc. links.
post script: My data is now back online at Wunderground and PWS plus my web page. For some unknown reason, the CWOP pages are half-down and no one has answered my queries for a couple of days...so that's still a work in progress.
Now to get back to rebuilding my CWOP, etc. links.
post script: My data is now back online at Wunderground and PWS plus my web page. For some unknown reason, the CWOP pages are half-down and no one has answered my queries for a couple of days...so that's still a work in progress.
-
Grumpy Moose
- Posts: 61
- Joined: Sat 14 Apr 2012 5:43 am
- Weather Station: Davis VP2
- Operating System: Win 7
- Location: Anchorage, Alaska
- Contact:
Re: Stoooopid Questions
AWESOME!paleoguy wrote:WHEW!!! Yes, my faithful old VP is now clicking merrily along with my/our beloved Cumulus. Many, many thanks to G.M. and, of course, to Steve. Even with the list, I was able to make many wrong turns, but all's well etc. etc. One very small suggested change to the list would be that the datalogger updater is actually called something like 'Weatherlink Update 6.0'. Minor to ordinary folks, perhaps, but formidable for flounderings like myself.
Now to get back to rebuilding my CWOP, etc. links.
