I suggest you take one step at a time otherwise you will confuse yourself and us, and nobody will be able to help you…
First install the station and get it working to the console
Then get it working with weatherlink
Then think about weatherlink plus WD
If your PC only has one serial port and you have a serial weatherlink and you want to use WD too, then you will need a USB to Serial adaptor to give you a second serial port. Or, you could just use WD like a lot of us do 
Can both WL and WD be physically installed, but only one really in use?
ie. could both be installed but only use WD? If so will data still goto the WL logfiles?
“If your PC only has one serial port and you have a serial weatherlink and you want to use WD too, then you will need a USB to Serial adaptor to give you a second serial port” - how does this adapter give another serial port?
UGGGGG… I agree, let me get this up and running first…
yes you have them both running, wlink and wd, and you set wd to listen only
and yes you need to the usb to serial adaptor to add another comport
there are a couple of people on this forum who have this working
Ok… where in the scheme of things does this adapter go (before the pc, after the data logger?), where would
one obtain one? How does an adapter add a comm port?
thanks
I recently did this to my station. I split the output from the Davis weatherlogger and sent it to 2 different computers. Used a serial splitter cable from pccables.com.
It does work, however, the sample time of WeatherLink is not adjustable. Since WD is listen-only, I ended up missing a lot of data that I was used to seeing. As an example, a few days ago I had a very windy day, gusts over 35 mph. When the Davis console was reading 35 mph, WD display showed 17 mph. After I saw that I pulled the cable and set WD back in control.
just a side note,Gary has it in his review WD misses gusts and or data
I dont think it does…as sometimes it gets like 2 data updates in quick succession…and you could miss that, unless you have the console and PC screen right next to other
i have this, and I dont see any missed data or gusts, which is contrary to Gary Oldmans review, but I dont think he will listen and change that
oK…
well lets say i start off with WL then goto WD. Can WD run without WL.
I thought WL HAD to be installed and running for the logger to work.
If it can run by itself then I can just do that
no, weather link does not need to be running for any other software to work with the datalogger
I have been using WD also for a while. I have a solution that is the least evasive and intrusive. I do this right now ( until things sort out a bit)… I use some of the weatherlink items just for the long haul historical stuff on the web site, with the rest of the items from WDisplay.
Do exactly as Niko said, get your station set up, install your data logger, allow the console (and datalogger)to develop about 4 hours of data ( then the forecast works). Set up weatherlink. That will let you see if the data logger and your computer are getting along , that is is weatherlink seeing what is going on on the console. That is very important. Because if it isn’t the WDisplay or any other software isn’t going to work. Let that run a while. ( jot down your settings, port, baud rate, station config.) Then get exit completely out of Weatherlink and get Wdisplay to talk to your console. Use your same settings on Wdisplay ( port, sensors, etc).
Had a side thought … On Weatherlink as well as on Weatherdiaplay, both have settings to clear the archive settings after data is downloaded, don’t enable that. let it accumulate … you will need that option some day soon.
On weatherdisplay - enable the data backup under control panel - will save you from aging and moving to Iowa.
Ok. now the non evasive solution… Run Wdisplay and enjoy it. When you want to use Weatherlink. Exit and save out of wdisplay ( be sure to save . also do this when you are not uploading…) then enter into weatherlink, go to the download tab, download the archive , if you are doing an internet upload to a site, let it do that. Do any other things that you wish. Then exit out of weatherlink (making sure you didn’t check the clear archive option). Start WDisplay again. It will pick up your archived data from the console sort out what it needs and you are off and running. No wire, no port splitting,
I use this for when I do my globe.gov uploads ( until Windy gets Wdisplay to do what I want it to do) and it works fine. I figure that the change over is minimal in time and is not a problem.
Your other option would be to install a second serial port , buy a phone line splitter ( with the correct number of wires, split the signal to two ports and go from there. But isn’t there a thread on this bbs on someone who constructed such a beast that would allow this to work?
I think my way is easier and less hectic. Just have your items that you upload to your site be longer than right now.
Thanks for ALL the great info.
Let me ask this then…
Lets suppose I unpack, setup, and start running using WL. For a few days, weeks or so. Then I want
to install WD. Will WD recognize the data from WL for all the history stuff. Vice versa if I’m on WD for
a while and want to use WL, will it reconize data from WD?
there is an option to import the davis WL data (exported as download.txt), but there are so many combinations of logged data from wlink (its a nightmare)its a bit of trick to get that to work correct in weather display
there is no way at this time to do this the other way around
Bummer… is this being looked inot?
You need to ask Davis that, it would be their software that would have to be changed.
