When connecting to inverters you use pin 1 (RS485B) and pin 2 (RS485A) on the pylontech side RJ45. What RS485 converter are you using to connect to your PC USB?

Hi.  According to pylontech manual pin 1 and 8 are the same, Pin 2 and 7 the same.  They recommend using 6 -grd, 7 - RS485A and 8 - RS485B.  Will change connector to see if any change.

I'm using usb to serial convertor that I use with all my softwares for PLC programming and have no hassles.  Some PLC's have issues if convertor not good.  

On the 9 pin plug what must the connection be.

Thanks

2 hours ago, R Cerva said:

On the 9 pin plug what must the connection be.

The modbus standard specifies pins 5 (A) and 9 (B) https://www.modbus.org/docs/Modbus_over_serial_line_V1_02.pdf

Edited October 22, 20205 yr by Shadders
Incorrect information originally

Thanks.  Will make cable and test tomorrow.

Hi yani,

i have one 4048MSD monitored by ICC, one EASUN SMK (~Axpert King) monitored by solpiplog and one PCM60X battery charger monitored by a small tool.

Is it possible to monitor the PCM60X with your program as well? It would be great to combine my 3 systems and monitor/control it by one software.

Hi @yani Really nice software. One question, is there a way to get it to switch to solar at 07:00 and grid at 16:00? I'm using agm batteries and the switch to grid or battery does not work. I assume the switch only works when you have Pylons connected, or is there a way to do it while having the agm's connected?

Hi, I did make a serial cable for the console port on the Pylontech U3000 that plugs into a USB to RS232 convertor. Images to make the cable are in an earlier post. At first I could not get it to work. Checking on this forum and in the pylontech manual I found on this forum the baud rate of the USB to serial must be set to 1200 in windows. I hope this info helps the next guy trying to connect the Pylontech through the console port. It all works 100%. This is really great software

@Xman.

May you kindly share the schematic diagram for the cables please if you don't mind. I am planning to build one for my unit as well .. 

 

Many thanks

 

On 2020/12/19 at 5:02 PM, Newbie said:

@Xman.

May you kindly share the schematic diagram for the cables please if you don't mind. I am planning to build one for my unit as well .. 

 

Many thanks

 

 

 

This is the diagram I used

I used one of these connectors below. I had a old phone cable with the 4 wires and I crimped a rj45 on the one end so I did not need to solder the connector

https://www.comx-computers.co.za/ADA023-Unbranded-RS232-9-pin-Female-Serial-to-RJ45-Buy-p-171417.php

Hope this helps

 

 

On 2020/12/19 at 5:02 PM, Newbie said:

@Xman.

May you kindly share the schematic diagram for the cables please if you don't mind. I am planning to build one for my unit as well .. 

 

Many thanks

 

 

You get a connector like as well this is you want to avoid soldering

https://www.comx-computers.co.za/DELOCK-65268-Delock-9-pin-Sub-d-F-Terminal-Block-Buy-p-173531.php

 

1 hour ago, Xman said:

 

You get a connector like as well this is you want to avoid soldering

https://www.comx-computers.co.za/DELOCK-65268-Delock-9-pin-Sub-d-F-Terminal-Block-Buy-p-173531.php

 

The sub D 9 pin plug is fairly easy to solder the wires onto.. 

 

Hi Everybody
 

I installed this software with a Axpert MAX 7.2 and had a problem reading the second PV string.
I contacted Yani yesterday and today he send me a updated version of the software.

Excellent service for a Free version of software.

So once more, many thanks to Yani for the quick response.

Your software looks great and works well now.

Tj

Hi. Glad to hear you got reply.  Send several emails with no reply.

I've upgraded my invertor to 8kw deye invertors.  Asked if the software  support it but no reply.

 

@R Cerva You can use solar assistant for Deye/SunSynk. As far as I know multisib doesn't support SunSynk.

https://solar-assistant.io/

Hi All,

So, firstly, can MultiSIB control be run from a Pi?  Because I don't want to tie up my laptop monitoring my inverter.

And then secondly, is there a way of linking it to my MCB to turn off, for example, the pool pump when the battery (Pylontech) SOC drops below a certain level, and turn it back on again when it climbs back up again?

Many thanks

Hi all

Tested Multisibcontrol on Windows 10 laptop. Picked up my Mercer MKII's(Parallel setup) but at first could not see my 4 Pylontechs(US3000c).

I made up my RJ45 to Serial(Diagrams attached) , plugged it into console port of master battery and used a regular serial to usb cable to connect it to the USB port on my laptop. After plugging and removing a few times it still didn't work. 

I then opened Device Manager on windows 10 , plugged in the usb/serial cable again and saw a little ! indicating incorrect drivers of the new device. I clicked on properties / update driver / windows recommended search from internet. The CH340 driver was installed(same as arduino drivers I think). Once installed I unplugged the usb/serial and plugged it back in opened Multisibcontrol. After a few seconds it detected all 4 Pylontechs and showed all parameters. I did not have to change Baud rate settings.

I plan on using an old laptop and chrome remote desktop to mirror the desktop onto my computer and work or onto my phone for now.

Has anyone got any examples of the Device Control setup? 

Is it possible to check the Pylontech's SOC% is > 95% at 17h00, if NOT then change Output Source Priority to SUB. Once the SOC% is > 95% then change Output Source Priority to SBU.  

If there is another way to do this please advice me.

12 minutes ago, azharc said:

If there is another way to do this please advice me.

I do that with solar assistant

https://solar-assistant.io/help/power-management/axpert

Hi guys,

 

It's been a long time since I wrote here. Sorry, I'm too busy with the regular job and don't have much time to read/post on forums.

To reply on some of the questions asked:

1. Many people ask about version for Pi - It is possible, but the software is constantly writing huge amount of data in the database and I'm pretty sure that the SD card of the Pi will not last longer than a few months and will fail. As a result most (or all) data will be lost and monitoring will stop.

2. Some get message that software has expired. Simply download and install the latest version and it will fix this problem.

3. If you want to switch between SBU/SUB/USB modes at specific times every day then go to Settings>Mode control, check "Control inverter mode based on time schedule". Then click "Add" to add a time/mode for a schedule. With the latest version it is also possible to add Pylon SOC% condition for the mode switching. At the specified time the software will switch to selected mode only if Pylon SOC% condition is fulfilled.

4. If you want to control the inverter mode based on Pylon SOC% then go to Settings>Mode control and check "Control inverter mode based on Pylon SOC%". Then select the SOC% thresholds to switch to grid/battery. The system will switch every time the Pylontech SOC% goes below/above the selected thresholds.

You can also check the "Continuous SOC control" - this way the system will continuously check inverter mode and will always switch to grid if SOC% is below the grid threshold and mode is not grid, it will also always switch to battery if SOC% is above battery threshold % and mode is not battery. This option is not recommended as it will be in conflict with manual mode switching (from main screen buttons) and also with time schedule switching.

5. If you want to switch the inverter charging mode/max current at specific times every day then go to Settings>Charge control, check "Control grid charging based on time schedule", then click "Add" to add time/mode for a scheduled switching.

6. Device control - this is used to control devices that can be controlled by web requests. I'm using this to send notifications to my phone (using an online notification service) and also to control my Shelly devices and the charging current of the EVSE car charger. It may also be possible to also control Sonoff devices with web requests, but I haven't played with these. I attach some images with examples. The first two screens show the configuration for the phone notifications - The first sends me push notification on the phone when mode changes to "battery", the second one send me notification when mode changes to "grid". Both rules run every day, from 00:00-24:00... The third screen shows the EVSE control - it sets the max charging current on my EVSE charger to 25A if SOC%>60 and total PV for the day is >30kWh (but only between 12:00 and 18:00 hours). I have more rules to set lower currents as well.

The web control of Shelly 1/1PM/2/2.5/4Pro relays is also simple - just send http://192.168.0.85/relay/0?turn=on or http://192.168.0.85/relay/0?turn=off to switch  on/off. The control is on local LAN IP addresses.
I also have information from a user that he is controlling his Fibaro devices with this function.

On 2020/08/19 at 5:53 PM, yani said:

Hi guys,

Just wanted to present to you a new Windows' software tool that we prepared for monitoring of PIP/Axpert inverters and Pylontech batteries. It supports many compatible inverter models. It can work with parallel configurations as well. This was actually the main reason to write the software because a few months ago I upgraded my system from single to 3x inverters and the "pi" solution did not work correct anymore.

The software can control switching between battery/grid mode based on Pylontech SOC, and also can control Pylontech max charge current based on the request coming from its BMS. The software can also upload data to emoncms server. 

Currently the software has only basic reporting, but all inverter/pylon data is stored in local database and we intend to add more reporting options in future.

We also added a "console" screen where users can manually send commands to Inverters and Pylontech.

The communication with inverters is by USB or RS232 connection. In parallel setups each inverter should be connected with separate cable. I chose this method because reading parallel data from a single inverter is highly inaccurate and slow (at least in the setups where we tested).

The Pylontech batteries can be connected by RS232 (console port) or RS485 (to the dedicated RS485 port). 

You can download the software at http://www.multisibcontrol.net . It is absolutely free now.

 

Hello

Does this only apply to PylonTech batteries, or can this be used for other types too?

Regards

Great software, just need to get a cable sorted for the Pylontech, thank you Yani. 

Software sorted and chrome remote view on my phone! 

Could someone please advise if this adapter will work to connect to the python? 

http://www.haitronic.cn/index.php?route=product/product&product_id=647

On 2021/04/28 at 8:43 PM, yani said:

 

4. If you want to control the inverter mode based on Pylon SOC% then go to Settings>Mode control and check "Control inverter mode based on Pylon SOC%". Then select the SOC% thresholds to switch to grid/battery. The system will switch every time the Pylontech SOC% goes below/above the selected thresholds.

Hi Jani

I think this is great and a huge number of users will like this. I am going to test this on my PylonTech soon.

 

However I have one question. Why only PylonTech? My second system use AGM batteries and I would like to know if that can be accommodated by your software?

Thank you

Sass

 

I have one question in my mind.  Did MultiSIB shows reading if we remove the connections with battery and inverter after making proper settings on software.