inverter

[cees1910]

inverter

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‎06-20-2013 11:07 AM

Hallo

I am looking how i can get a data from a solar inverter who is on my network

I can startup a apllication wich come with  the inverter , but i want to add and substract things so basicly i want to do what the application is doing with extra's

Now i have its ip adres so no problem there , but when i do that with coputer and toggle this adress all other tablet do not have any axcces any more that is not what i want , now i can log with the apllcations from the manufactor  with unlimited tablets and computer ,  so i have no idea what is going on

it seems that the data data is given with out any one talking to the inverter ,

So do any one has a idea just to grab this data ,with out locking the inverter up for other computers

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[#2]

Hallo

I am looking how i can get a data from a solar inverter who is on my network

I can startup a apllication wich come with  the inverter , but i want to add and substract things so basicly i want to do what the application is doing with extra's

Now i have its ip adres so no problem there , but when i do that with coputer and toggle this adress all other tablet do not have any axcces any more that is not what i want , now i can log with the apllcations from the manufactor  with unlimited tablets and computer ,  so i have no idea what is going on

it seems that the data data is given with out any one talking to the inverter ,

So do any one has a idea just to grab this data ,with out locking the inverter up for other computers

[ThiCop · Accepted solution]

Hello cees1910,

I have problems with opening the attached pictures, so I cannot really derive what is going on.

What type of Solar Inverter is it? (brand, product type, etc.)

Is it anywhere specified that the Solar Inverter can only have more than one "communication channel" open at a certain moment in time.

If this is not possible, then you could always write an intermediate application in between that for example allows Client-Server communication from multiple devices at once.

However, to be able to give any advice we would need more information.

[cees1910]

hi

it a solarmax mt 15   2

with 2 mppt    and 15. Kw

www.solarmax.com

and problem is not solved yet

[ThiCop]

Hello Cees,

I don't see anywhere on the website a mentioning that opening multiple communication channels in parallel to it should be possible.
Have you already contacted Solarmax with this question?

[cees1910]

Yes i did

and they say , you have to buy their web box  about 600 euros(and not solves our problem ,since we want combine it with the smart meter)

But with several tablets   you can connect to the inverter

So must be possible is a protocol issue

[ThiCop]

Hello Cees,

On the tablets you are using in parallel you probably use a specific app made by them (Solarmax) , right?

If you want to keep using the original app on the tablets (in parallel) and write your own code to communicate from somewhere else (like your smart meter), then you will have to search for the right protocol to use.

The company that made the hardware should be able to provide you with the required information (eg. protocol, communication schemes, etc... )

If they do not want to release this information, then you will have to try to do reverse engineering yourself.

Did they clearly understand the goal of your application? (communicate with other devices through LabVIEW)

[cees1910]

i know and that what i am trying to do,

but i have no idea about the protocal ,and they do not want to release it

for me then its a needle in hay stack so to say

[ThiCop]

Hello Cees,

You could always try to reverse engineer it by using a packet sniffer/analyzer, while communicating from your pc (with their pc app) with the Inverter.

You should be able to get some information this way.

It's really unfortunate that they do not wish to share this information.

[cees1910]

using a packet sniffer/analyzer, while communicating from your pc (with their pc app) with the Inverter.

 Have no idea how that works, any link for me?

[ThiCop]

Hello Cees,

You can find alot of information by just googling the words "packet sniffer", "packet analyzer", "protocol analyzer" or any other synonyms. (other synonyms can be found on Wikipedia: http://en.wikipedia.org/wiki/Packet_analyzer )

There are many programs available.

Some amongst them are free, some of them are not.

By googling the sentence "How to use a packet sniffer" you directly find this information:

http://www.trainsignal.com/blog/free-packet-sniffer

Please remember that it does require some knowledge about network communication protocols to be able to retrieve valuable information.

You will have to make the decision yourself if you have the time to do this and if the amount of time you will need to spend is worth the effort (and also the money you save).

Reverse engineering things (SW or HW) is in general not always that easy.

Just for confirmation:

- Are you sure that you are communicating over wi-fi through the Touch Panel apps?

- Are you sure that with your current hardware set-up it is actually possible to open continuous parallel communication (through multiple Touch Panels and PC's) with the same device?