Welcome to the Cumulus Support forum.
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
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
MX V4
Moderator: mcrossley
-
davepaterson
- Posts: 176
- Joined: Tue 01 Jan 2019 8:12 pm
- Weather Station: HP2551 , WH40/WH68+WH57/GW1100C
- Operating System: Windows 11/11
- Location: Hamilton, Scotland UK
MX V4
Mark while I admire your Computer knowledge for me the V4 is a step to far.
I use the log files and select each entry by using the coma ie: ,21,5 for temp. so will not be able to select from ,21.5 with V4 .22.5 so for me I will be sticking with V3 or as usual got it all wrong?
Dave
I use the log files and select each entry by using the coma ie: ,21,5 for temp. so will not be able to select from ,21.5 with V4 .22.5 so for me I will be sticking with V3 or as usual got it all wrong?
Dave
- HansR
- Posts: 6926
- Joined: Sat 20 Oct 2012 6:53 am
- Weather Station: GW1100 (WS80/WH40)
- Operating System: Raspberry OS/Bookworm
- Location: Wagenborgen (NL)
- Contact:
Re: MX V4
Could you explain a bit of the context?davepaterson wrote: ↑Sun 17 Mar 2024 11:09 pm I use the log files and select each entry by using the coma ie: ,21,5 for temp. so will not be able to select from ,21.5 with V4 .22.5 so for me I will be sticking with V3 or as usual got it all wrong?
What and how are you selecting and what do you with it?
V4 is not incomprehensible magic so your issue must be solvable.
Hans
https://meteo-wagenborgen.nl
CMX build 4070+ ● RPi 4B ● Linux 6.6.62+rpt-rpi-v8 aarch64 (bookworm) ● dotnet 8.0.1
BlueSky: https://bsky.app/profile/wagenborgenwx.bsky.social
https://meteo-wagenborgen.nl
CMX build 4070+ ● RPi 4B ● Linux 6.6.62+rpt-rpi-v8 aarch64 (bookworm) ● dotnet 8.0.1
BlueSky: https://bsky.app/profile/wagenborgenwx.bsky.social
-
broadstairs
- Posts: 1184
- Joined: Thu 14 Aug 2008 7:17 am
- Weather Station: Ecowitt GW2000/GW3000
- Operating System: Linux openSUSE LEAP
- Location: Broadstairs, Kent, UK
- Contact:
Re: MX V4
I too am puzzled as the data separator is still a comma so as Hans said please tell us more.
Stuart
Stuart
Currently running CMX V4.4.2 4085 on Linux openSUSE Leap
-
davepaterson
- Posts: 176
- Joined: Tue 01 Jan 2019 8:12 pm
- Weather Station: HP2551 , WH40/WH68+WH57/GW1100C
- Operating System: Windows 11/11
- Location: Hamilton, Scotland UK
Re: MX V4
I am also Puzzled? so don't ask, probably something to do with Whisky, late and an old neanderthal brain. Have installed .net8 and will just do it all when sober and awake.
Sorry for the incorrect feedback.
Dave
Sorry for the incorrect feedback.
Dave
- HansR
- Posts: 6926
- Joined: Sat 20 Oct 2012 6:53 am
- Weather Station: GW1100 (WS80/WH40)
- Operating System: Raspberry OS/Bookworm
- Location: Wagenborgen (NL)
- Contact:
Re: MX V4
Hans
https://meteo-wagenborgen.nl
CMX build 4070+ ● RPi 4B ● Linux 6.6.62+rpt-rpi-v8 aarch64 (bookworm) ● dotnet 8.0.1
BlueSky: https://bsky.app/profile/wagenborgenwx.bsky.social
https://meteo-wagenborgen.nl
CMX build 4070+ ● RPi 4B ● Linux 6.6.62+rpt-rpi-v8 aarch64 (bookworm) ● dotnet 8.0.1
BlueSky: https://bsky.app/profile/wagenborgenwx.bsky.social
-
broadstairs
- Posts: 1184
- Joined: Thu 14 Aug 2008 7:17 am
- Weather Station: Ecowitt GW2000/GW3000
- Operating System: Linux openSUSE LEAP
- Location: Broadstairs, Kent, UK
- Contact:
Re: MX V4
I have similar senior moments all the time
Stuart
Stuart
Currently running CMX V4.4.2 4085 on Linux openSUSE Leap
-
davepaterson
- Posts: 176
- Joined: Tue 01 Jan 2019 8:12 pm
- Weather Station: HP2551 , WH40/WH68+WH57/GW1100C
- Operating System: Windows 11/11
- Location: Hamilton, Scotland UK
Re: MX V4
Took my time and V4 now installed on windows11.
from the notes : 'I strongly advise that you run v4 in parallel with v3 for the duration of the beta test.' but in diag I get '2024-03-18 17:14:40.002 Cumulus is already running - terminating'
How can you run V4 and V3 at the same time OR AM I MUT AGAIN
Dave
from the notes : 'I strongly advise that you run v4 in parallel with v3 for the duration of the beta test.' but in diag I get '2024-03-18 17:14:40.002 Cumulus is already running - terminating'
How can you run V4 and V3 at the same time OR AM I MUT AGAIN
Dave
- mcrossley
- Posts: 14384
- Joined: Thu 07 Jan 2010 9:44 pm
- Weather Station: Davis VP2/WLL
- Operating System: Bullseye Lite rPi
- Location: Wilmslow, Cheshire, UK
- Contact:
Re: MX V4
You have to run the second instance on a different port.
The default port is 8998, so run your v4 instance using the commands line parameter: -port 8999
You then connect to v4 using http://IP:8999
The default port is 8998, so run your v4 instance using the commands line parameter: -port 8999
You then connect to v4 using http://IP:8999
-
davepaterson
- Posts: 176
- Joined: Tue 01 Jan 2019 8:12 pm
- Weather Station: HP2551 , WH40/WH68+WH57/GW1100C
- Operating System: Windows 11/11
- Location: Hamilton, Scotland UK
Re: MX V4
I shut down V3MX.exe and ran the V4 version which worked but if V3 is running V4 won't start so the dashboard wont show on any port. I have also tried to instal V4 on my second Win 11 laptop but when I tried to run MigrateData3to4 all I get is the CMD window which comes on then goes straight out. no data is changed and in MXdiags (tried to run MXV4 )the only entry is .gitignore
Dave
Dave
- mcrossley
- Posts: 14384
- Joined: Thu 07 Jan 2010 9:44 pm
- Weather Station: Davis VP2/WLL
- Operating System: Bullseye Lite rPi
- Location: Wilmslow, Cheshire, UK
- Contact:
Re: MX V4
Did you start v4 as...
> CumulusMX.exe -port 8999
That should work, the "already running" detection includes the port number, so two instances on different ports are allowed to run together.
> CumulusMX.exe -port 8999
That should work, the "already running" detection includes the port number, so two instances on different ports are allowed to run together.
-
davepaterson
- Posts: 176
- Joined: Tue 01 Jan 2019 8:12 pm
- Weather Station: HP2551 , WH40/WH68+WH57/GW1100C
- Operating System: Windows 11/11
- Location: Hamilton, Scotland UK
Re: MX V4
Sorry to be a pest Mark but my CMD knowledge is long gone from the bits left upstairs, How do I input CumulusMX.exe -port 8999 into the CMD line including the Directory change input code?
Dave
Dave
-
davepaterson
- Posts: 176
- Joined: Tue 01 Jan 2019 8:12 pm
- Weather Station: HP2551 , WH40/WH68+WH57/GW1100C
- Operating System: Windows 11/11
- Location: Hamilton, Scotland UK
Re: MX V4
Second laptop is up and running V4 (V3 not running), had written down the install data and forgot net8 install. MUTT 
- mcrossley
- Posts: 14384
- Joined: Thu 07 Jan 2010 9:44 pm
- Weather Station: Davis VP2/WLL
- Operating System: Bullseye Lite rPi
- Location: Wilmslow, Cheshire, UK
- Contact:
Re: MX V4
Start a cmd prompt, then:davepaterson wrote: ↑Mon 18 Mar 2024 8:42 pm Sorry to be a pest Mark but my CMD knowledge is long gone from the bits left upstairs, How do I input CumulusMX.exe -port 8999 into the CMD line including the Directory change input code?
Dave
> cd \path\to\cmxv4
> CumulusMX.exe -port 8999
-
davepaterson
- Posts: 176
- Joined: Tue 01 Jan 2019 8:12 pm
- Weather Station: HP2551 , WH40/WH68+WH57/GW1100C
- Operating System: Windows 11/11
- Location: Hamilton, Scotland UK
Re: MX V4
Thanks Mark been playing around with that format but need to change to D:\ first
Dave
Dave
- PaulMy
- Posts: 4355
- Joined: Sun 28 Sep 2008 11:54 pm
- Weather Station: Davis VP2 Plus 24-Hour FARS
- Operating System: Windows8 and Windows10
- Location: Komoka, ON Canada
- Contact:
Re: MX V4
Hi,
I do this often from the Windows icon (lower left) click and select Run, or Windows System then Run.
C:\CumulusMX\CumulusMX.exe
C:\CumulusMX3\CumulusMX.exe -port 8993
C:\CumulusMX4beta\CumulusMX.exe -port 8994
and as many different installs as you want
The previously used paths are saved in the Run box so just a matter of selecting the correct CMX install line and press OK
Enjoy,
Paul
I do this often from the Windows icon (lower left) click and select Run, or Windows System then Run.
C:\CumulusMX\CumulusMX.exe
C:\CumulusMX3\CumulusMX.exe -port 8993
C:\CumulusMX4beta\CumulusMX.exe -port 8994
and as many different installs as you want
The previously used paths are saved in the Run box so just a matter of selecting the correct CMX install line and press OK
Enjoy,
Paul
VP2+
C1 www.komokaweather.com/komokaweather-ca
MX https://komokaweather.com/cumulusmx/index.htm /index.html /index.php
MX https://komokaweather.com/cumulusmxwll/index.htm /index.html /index.php
MX https:// komokaweather.com/cumulusmx4/index.htm

C1 www.komokaweather.com/komokaweather-ca
MX https://komokaweather.com/cumulusmx/index.htm /index.html /index.php
MX https://komokaweather.com/cumulusmxwll/index.htm /index.html /index.php
MX https:// komokaweather.com/cumulusmx4/index.htm