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Cef

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Cef last won the day on September 22

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  1. Hi everyone. https://youtu.be/lLozeLOEaW4 I wanted to show you a short video based on the answer to a question from one of the forum members in another thread. It is not my intention that this thread becomes distorted when entering another topic. It is only to inform you that this program that is already used by several of those who read this thread, was fundamental for me specifically regarding the invention that I show you, to adjust and test in my installation the Circuit that you observe in the video board, with the Power Data in Real Time and the stored data. Daily maximum of Amp, Vmp and Efficiency of the 2 chains that share the PV2 input. By the way, I take this opportunity to demonstrate that continuous monitoring 24 hours a day, 365 days a year is possible with Windows. Regards !
  2. Well. Quiet. The arcing phenomenon appears only when active / passive elements are used in a photovoltaic installation that are rated for alternating current and not for direct current. These Circuit RELAYS that you see in the video are nominated for Direct Current, you will have seen how handling more than 1000 Watts of power, you can make all the Chain Changes you want without any problem. The timer you see is simply a device that can be powered by alternating current or direct current, depending on what you buy or want. It is very economical, you can buy it at any electricity store, for boards with a DIN Rail, it fulfills the same function as a Garden Irrigation Programmer or Timer. It should only have one common contact, one open and one closed. In other words, any timer that is Normal Closed or Normal open works in the same way, there is connected the Continuous control current that acts on the High Power Relays. Your only job is to schedule it, indicating that every day, for example at 1:00 p.m. the East Chain is switched to the West Chain (or when it is solar noon or depending on your previous evaluation of the SYMMETRY of your East-West chains in Angle and in Total Power) and monitoring the maximum Solar Energy by trial and error, and enter the change to the previous condition at night or before dawn. The position of the sun changes throughout the year as you perfectly know, so a maximum of 3 or 4 times a year that you slightly modify the chain change schedule is more than enough. Do not be guided by the Diagram that I published in a Previous Post about the first tests I did ... I am going to put the final Circuit in use of this Device at the disposal of Power Forum and the whole world shortly with a DIY, I will try to do something complete and with a technical basis, since I know it will cause a lot of stir . as it really works for any Power Inverter. It's more. Doubling this Circuit you could "virtually" and with the obvious limitations, quadruple your real PV inputs, going from 2 to 4, obviously if you do not want to buy another current inverter and therefore in a much cheaper way. Regards
  3. Hi @Bobster I just read your post and create a short video to show you that what you want is perfectly possible and that the change between chains is automatic. I have not found anything in the trade that does this. It works perfectly for me. I just filmed this on my cell phone, it's to give you an idea. Go to the Link: https://youtu.be/lLozeLOEaW4
  4. Hello, @wattever I am very busy at the moment. I think October will be a good month to come back a bit calmer and I am going to release some intermediate version between 3 and 4 with correction of small bugs, "Time To Go" of the batteries and I will see if I solve the issue of several inverters. on the LAN. With reference to exiting the application is very simple. Just click with the mouse on the application icon that you will find as a Service in the Windows system tray. I purposely did it this way to avoid mistakenly closing the application from the "X" of the window. Do not forget that although most do not use it 24 hours / 7 days for now, it is designed to be used in continuous monitoring and the values of Hourly / Daily Energy ... to give reliable data they need the application to be working, otherwise Otherwise, the total values displayed will be lower. The other reason I decided to run the main application as a Systray Service is that when I add more functionality such as real-time graphics, external event / relay handling, etc. It is possible that the tasks are separated so as not to overload a Processor thread and that the application behaves similarly to the "SOLARPOWER" software that runs on Windows and that everyone with "Axpert Inverters" and the like knows so well. distributed together with them for their configuration and monitoring of the solar station.
  5. @DanieVanZyl Welcome to the PowerForum community. I'm glad you like it and work for you! Regards
  6. @curto, , I get your point . But you insist on a design philosophy that Python programmers and yours fans can see very well, but I am from another era and my philosophy is different. If I am going to make a program just for me, obviously I would do it in the simplest way that is the solution you propose and what I did in the first version: static address and immediate connection, expanding that simple concept in addition to knowing all the IP addresses to decide which one to connect with. But my intention is to share what I do with anyone who thinks they like and serve them like me, even if they don't have much notion of what a static or dynamic IP is delivered by a DHCP from a router, simply because an installer didn't just install your entire solar system and left your equipment set up on your LAN and you haven't taken any computer science courses, you don't understand or care. I do not live from programming, it is my hobby and in that line I look for 4 objectives: 1.) That the system provide me information in real time with the lowest refresh rate (polling rate) that Goodwe's hardware inverter technology allows, in this case, so that the energy sum equations have the highest possible precision and having the data available to be able to use the full power of a PC to add many more functionalities. 2.) Use a platform that allows me to save my data locally, not depend on the web cloud and is reasonably protected against read / write failures. 3.) That it is as visually attractive as possible within my own limitations of graphic design concepts, having a Micro PC and a Monitor next to the Inverter and that my whole family understand what is happening and show it to my friends and people who want to get into Solar Energy, without being so aware of the additional consumption of 10 Wh more, since for an industrial micro PC it is not much greater than a Blackberry PHI 4. 4.) That it is intuitive, easy to use and therefore does not require more than a minimum of knowledge to install the program as anyone does and that it works for anyone, such as PVMaster / EzManager. His intervention was useful when he told me that he has 3 (three) inverters connected to his LAN and that the PVMaster makes a kind of internal list for 10 seconds. I did not know that. To avoid what the PVMaster does wrong, we just need to improve the search algorithm. When I have time I will continue with this topic to automate the discovery of all Goodwe inverters automatically. Regards.
  7. @curto Well. It sure is the simplest solution. But you should know that most people do not know how to configure a static IP on a router. Those of us who use Windows instead of Blackberry PHI with its Python routines and other third-party tools make up 2 large groups. Those who have basic computer skills and are only interested in Plug and Play software or those who know a little more but are not satisfied with the limited number of read and write events at one second polling rates than a SD card Memory can support placed in a PHI, if you are not interested in consuming a few Watts more than a PC used in industrial environments, cooled by natural convection, they have a very low consumption. Not to mention the processing power of a PC and therefore the possibilities of what it can do with the data are not dreamed of by a PHi. Clarifications apart from the Broadcast that is sent through the port that you indicate with the string 255.255.255.255 in search of an Inverter is how the PVMaster and the EZmanager work. I have not had time to review the Response Chain yet, I do not really know if the different investers are chained, separating their IPs and MACs by commas, one next to the other, since I only have one to test ... If not, I don't know how the PVmaster will find more than one inverter on the grid. The other thing that occurs to me is to start from the IP of the First discovered, is to launch the device info command: AA55C07F0102000241 at IP of the firt inverter + 1 up to the number 255 and see if there are valid responses. The latter would take a little longer but would automatically discover all inverters in the LAN. If something else occurs to investers to discover, I automatically follow it with great interest.
  8. Hi there. Good question. I have not contemplated it yet. The software connects to the first inverter that responds to the broadcast sent by the program. I'm going to do some research and try to make the software automatically recognize all the inverters present on the LAN and allow you to choose which one to connect to, always defining one by default in the configuration file in case of an unexpected restart of the Windows operating system, the idea it would be to resume with a previously chosen inverter as principal, after a specified time.
  9. Hi @curto . Sorry for the delay, I've been very busy with my work. I do not know your inverter, but in the ES Series it is not possible to use RS485 and WIFI - LAN simultaneously and therefore UDP. The MODBUS protocol by RS485 interface is ideal for all of this. I use it with Eastron Power Meters and it obviously has nothing to do with UDP. If I were not going to lose the data of the SEMS PORTAL, in addition to the remote firmware updates and eventual online assistance, I would have done all my development over MODBUS, which has infinitely fewer errors, it is extremely robust, the polling rates in milliseconds can be much lower than those obtained by UDP and with some information that, as you know, you can find on the web, you can know the read and write registers without the tortuous UDP. An extra difficulty that I see to use RS485 is that GOODWE can change the registers, if they wanted, in some firmware revision and then in the case of writing what your goal would be, it is very dangerous if you do. Without up-to-date information from Goodwe, the memory / registry spaces may change and there is the possibility that you could render your own inverter unusable. Actually, for someone who is not interested in sharing their knowledge and programs, the ideal is to sign with Goodwe the famous confidentiality agreements in .PDF and they will give you all the information you need. With reference to the UDP write commands, although I have not dabbled in them yet because I have a lot of previous functionalities in mind for my current development, I can tell you that I have a pretty good idea of how something can be discovered. using UDP, by reverse engineering. That is, to be able to imitate the behavior of the "PV Master" with its own development in Pithon or in any programming language. In order not to distort this thread, if you wish we can communicate in private. Regards.-
  10. Hi @curto I am subscribed to the mletenay mailing group of GITHUB users and have noticed that you have posted several questions and information from your own tests and I think you are on the right way. It is the only path that almost all of us who do not have direct confidential information from Goodwe follow. I understand that mletenay originally disassembled the PVMaster Java application. My thing has been trial and error reverse engineering with my own inverter and I found that some of the Python code for Series: ES posted on GITHUB had bugs and in my software I fixed them. Probably mletenay fixed them for ES Series as well, I haven't seen their solutions for over a year and stopped those queries upon detecting the errors. On the other hand, I already discovered everything I needed on my own from the information via UDP for the Goodwe ES series I am also continuing development as I plan to add a lot of functionality to it. I don't know if I can specifically help you with anything you want to do with your particular inverter series, I will gladly do that. Regards !
  11. Cef

    Goodwe LAN Module

    Hi @curto Although it is off topic, I appreciate that you have published the answer to the Broadcast that the LAN module must deliver, which is obviously different from the answer of the usual standard WIFI module. Coincidentally, one of the users had told me that the software that you know that I develop, does not work correctly with this LAN board and the Goodwe ES 5048.
  12. Cef

    Goodwe LAN Module

    Sorry, I repeat Has anyone installed this Goodwe Module in any ES Series Inverter, which replaces the WIFI Module and wants to share their opinion and experience? https://www.goodwe.com/monitoring-system/lan-module-330.asp I think it's great for those of us who are interested in having 24/7 continuous monitoring without the risks of disconnections due to fluctuations in WIFI signals. And the Quick installation Guide here: https://sinetechstore.co.za/wp-content/uploads/2021/01/Goodwe-Lan-Module-Quick-Installation-Guide.pdf CEF
  13. ¿Alguien ha instalado este Módulo Goodwe en algún Inversor de la Serie ES, que reemplaza al Módulo WIFI y quiere compartir su opinión y experiencia? https://www.goodwe.com/monitoring-system/lan-module-330.asp Creo que es genial para aquellos de nosotros que estamos interesados en tener un monitoreo continuo las 24 horas sin los riesgos de desconexiones debido a fluctuaciones en las señales WIFI.
  14. Ok. As you describe it, I think it's a good question. I don't have lithium batteries. From this thread maybe @Beylie, @FixAMess , among others I think they have to be clear about this issue.
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