question

Hi,

+1

I think it would be a very useful addition to the GUI to display input / output VAC and output Hz.

I'm currently having to switch between browser tabs (one Venus GUI, the other a NodeRed GUI) to look at the output frequency (off grid systems). You can look at NodeRed running on something like a Raspberry Pi to build your own dashboard and query the CCGX for the information.

cheers,
Jan

I have created an enhanced Mobile Overview page that displays voltage, current and frequency in the AC in and out tiles as well as other changes to the display. Have a look:

https://github.com/kwindrem/GuiMods

I looked into adding some of this to the main page (flow graphic) but there simply isn't enough space.

Also, the changes I made only support a single phase system. Full support for a 2- or 3-phase system would probably require a separate page.

If I recall, the original Mobile Overview page displays power for up to 3 phases but there's no room for voltage and current.

Thank you Kevin and others for picking this up. My installation is fixed, consisting of the CCGX, a BMV-712, an MPPT solar charge controller, and a Multi charger/inverter. So the mobile page isn't really appropriate for me.

On the main "flow" page, the Battery icon has SOC% in large font at the top and then W, V, A in smaller font below. However the AC input icon which is the same size, has only W in large font. Would it not be possible to add V, A & Hz in smaller font below that?

Unfortunately I don't have any experience programming for the Venus nor, unfortunately, the several days of experimenting it would take to get started. If @Kevin Windrem were able to take that up it would be a great benefit to the community not to mention me ;)

Thanks @Kevin Windrem. I suspect a large majority of systems are single-leg (at least outside the US/CA where split phase is used). At the missionary hospital where I serve, we have a 15 kVA Victron charger/inverter system (essentially an online UPS) but nonetheless single phase/single-leg.

The main "flow" overview page is the only one I use since it has all the information that is on the other 2 pages I use, the Tiles page and the Generator page (which is actually either generator or mains, switched outside the system, since the Multi has only 1 AC input; I should have bought a Quattro).

Would it be possible to add an additional custom page applicable only to single-leg systems, identical to the main page but with V/A/Hz added?

I was inspired by jbakqwel's work and made a few tweaks.

Jan's changes only work for single-leg systems and I'm guessing a fair number of systems are at least split-phase (2 legs). I found space to show power, voltage, current for all three legs and a single frequency and input current limit line at the bottom.

For single leg systems, all parameters are shown on their own line like in Jan's version. For 2 and 3 leg systems, I squeeze power, voltage and frequency on a single line.

I only have a single-leg system so this last diagram shows no data for L2 and L3 but does show actual data for L1.

I've added this to my GuiMods:

https://github.com/kwindrem/GuiMods

WARNING: I have only tested this on a single-leg system with one Multi. I don't know how this will work on a multi-leg system but have done my best to connect the GUI to actual parameters. I also don't know how a system with multiple Multis/Quatros on each phase will work. Do the VebusService parameters include current from all Multis/Quatros?????

If you give this a try on a larger system, let me know how it works and if I need to make any changes.

I have rewritten my code to eliminate incorrect values. Only acInput and acLoad connections have related voltage, current and frequency parameters, so other tiles will not show those values. My previous code showed something but the values were incorrect!!!!

https://github.com/kwindrem/GuiMods

So what I found, in OverviewHub.qml and OverviewGridParallel.qml, in OverviewSolarCharger{ } is:

               values: TileText {
                        y: 2
                        text: sys.pvCharger.power.format(0)
                        font.pixelSize: 20
               }

Unfortunately that is completely different from the Tile { } entity in the AC hacks, and I have no idea how to integrate @jbakuwel's suggestion of

property VBusItem pvVoltage: VBusItem { bind: Utils.path("com.victronenergy.solarcharger.ttyUSB1", "/Pv/V"); unit: "V"}

Sorry but I have no real idea how this stuff actually works, just copying and pasting! Thankful for the great progress on the AC side.

I started with this and ended up with the following:

TileText {
    property VBusItem inI1: VBusItem { bind: Utils.path(sys.vebusPrefix, "/Ac/ActiveIn/L1/I"); unit: "A" }
    text: inI1.format(1)
    font.pixelSize: 15
}

ie this creates a property on the TileText called "inI1" which is bound to the dbus value reported by my inverter reporting AC input current.

So I could view how much current I was drawing from the wall (and also show voltage and frequency because why not :)

For each item, you can bind arbitrary dbus objects, and you can discover those by running:

dbus -y com.victronenergy.vebus.ttyUSB0 / GetValue

sys.vebusPrefix will be com.victronenergy.vebus.ttyUSB0 (or something similar)