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Anyone using the Fronius inverter add-ons? - Page 3

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Posted by lilBubba on July 12, 2007, 11:28 pm
Has anyone used the KACO inverter interface?  They are new from
Germany.  Just wonder if it works better than the Fronius software

Posted by Rick F. on July 14, 2007, 3:34 am

As long as you use it with their inverters, it's probably fine..
I didn't see anything indicating their data logger would work with
anything but their inverter -- certainly not the Fronius.. (8-<

Posted by Christian Kaiser on July 3, 2007, 7:38 pm
 I do have a data logger installed, and it works "perfect" on my laptop.
Quotation marks are explained below.

I disagree. Without logging, and seeing unexpected spikes or other
unexplainable curve forms, I would not have found ot that the inverter
shuts down sometimes due to the varying frequency of the public grid.
Support was very helpful in THAT case, and we did solve the problem by
widening the acceptable frequency range. Maybe they are not good for
Software installation problems.

The software itself is - eh - very primitive. It does not

- report errors (unless you add a modem, AFAIK)
- show a daily curve, just the rough data (but in detail including
resistance etc.)
- allow external access, apart from the Access database (which contains
just the historical data, not the current one... and the software does
only fetch and write the historical data once a day...)

The protocol is proprietary, so you're stuck with their software.

You can get the new "Interface card", which allows you to program an own
application, but which does not give you access to stored (historical)
data, so the thing is not well thought through (mildly put).

There's some third-party software around for about $00 that claims to
be able to read the data. Well, it's just not worth for one small solar
system to buy this software, just to have the fun to look at the curves
in the internet...

I wouldn't buy Fronius again unless they solve this user-unfriendly
software chaos. Sunny seems much better, at least in that respect.

But then, I do have the IG40, and it works. Why complain for the
"inconvenience" not to be able to create nice online graphics...


Posted by dold on July 3, 2007, 9:17 pm
I should have said $00 worth.  If there were a free solution available, I
would use it.  I spent many man hours trying to get the Fronius solution to
work, and it just didn't.

I thought it fetched fairly often, but only posted to the web site once
per day... but I forget.  It was over a year ago.  You could use their live
monitor, or you could tell it to fetch on demand, so the Access would be
fresh... but that never worked for me, so I can't really say.

I think so.

Clarence A Dold - Hidden Valley Lake, CA, USA  GPS: 38.8,-122.5

Posted by Rick F on July 3, 2007, 9:33 pm
 On Jul 3, 2:17 pm, d...@09.usenet.us.com wrote:

Based on what I have read, it seems like it's
somewhat configurable in terms of how often
the data is fetched and "snapshotted" to the
data logger -- I specifically saw 30 minute
increments mentioned somewhere.

One other alternative (if someone can find the
technical specs in English) is the following device
for a bit under $00 -- the SolarLog for Fronius
(they also make them for other inverter mfg's
as well -- such as the SunnyBoy series)


It basically plugs into the Fronius internal RS485
network and gathers the data from what I can tell
and then you can snarf that data via ethernet in
the form of CSV data.. I just wish I could read

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