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Then we have another misunderstanding here about support from Sorotec. It is complete fine if Sorotec does not want to invest more time and money into this device because developers need to be paid... Not okay is the missing support page from Sorotec. This page should contain all their...

Thanks for these pictures - especially this one. The original Segger can not power the target - you need 3,3v power from an external source to "VTref+pin 1" (I just stole it from a cheap usb2serial adapter). But that should not be problem for anybody here because you checked that pin for power...

I had a lead developer who connected a modbus driver ic's direction pins (DE and RE) to GND= always sending (must be switched from sending to receiving - yes it is possible that the bus still works - this is like when 2 people talk and another one is constantly talking to interrupt the others -...

Check your CPU's (!!!) - post a picture here to verify if you are unsure. Do not trust anybody includeing me. And mainly: do not trust Sorotec they may just solder anything they found somewhere floating around on their floor. My file Pv-03701-14-S4 contains the complete 64KB flash address space...

The CPU on the Mppt+Bus board is a STM32F103 clone "MindMotion MM32F103C8T" and supprted by Segger J-Link. The difference is the ID reported to the flasher. So I guess this patch patches the ID. Select this CPU in JFlash and I guess it should work. What I read out ("V1.4.4 2021-12-02" should...

so this idea is from sorotec! Why dont they recommend the much cheaper ST-Link??? Here is it: the ST-Link does not recognize the ST CPU on the MPPT - no communication! (this is the tool from the CPU manufacturer!) so there is something fishy going on - be careful! So the flasher always reports...

No I did not work - it did not power anything than itself. ... until I flashed Touch-03801-14-S3.hex which is "V1.4.3 2021-05-31" to the display. (this was a 100% "shot into the blue"!) With a ST-LINK V2 - wo had the idea of using an expensive Segger J-Link for that ? Be careful about the pin...

This is just an example screenshot showing CT sensor works. I can control everything also the AC input. I can also switch off the batteries but this also does not affect the inverter to push power to the loads connected on "AC Input". Without AC on "AC Input" the Battery is charged, without...

No the inverter is new and it never worked for me. The inverter shows status "idle" if I turn off this switch. I do not understand this switch. The inverter is "informed" that I am consumeing power (here 2,6kW) , the sun is shining and the battery is full so it should now push energy to "AC...

Com is for the Board with the CT input? What is the difference between Com-04301-03 and Com-04301-04 ? What is the difference between Touch-03801-14-S3 and Touch-03801-15 ? What is the connection from these filenames and the information in the "about" Screen on the inverter display?

I have this problem now. LCD Version: V1.5.1 2022-07-01 Inverter Version: V1.5.4 2021-07-19 Mppt Version 1.4.4 2021-12-02 My Revo II does not feed any power to the grid/power to loads connected to "AC Input" - direction (+ or -) of CT sensor does not change anything. Option "On Grid" and...

Measure the input resistance (I forget it) of the CT input with a digital multimeter. I think it was around 15 Ohm which means a current of 22mA for 0,333V

yes that is possible with 4 optocouplers as H-bridge the 3,3V is just the PWM output (raspberrypi in my case) with a fat elektrolyt condensator the 2 coils is just an old transformator 230V/24V (so ratio is 10:1) the 24v output connect to the CT input of the inverter to reduce the needed current...

CN5 is CAN (to communication board) CN15 is connected to the communicaton board with the USB, RS485 and RS232 CN2 is just power CN11 ??? CN13 is a serial connection to the mppt board you intercept and manipulate (???) when you save a setting in the menu the display board is sending this new...