voorbok

Hi again. I figured it out. i had to add some square brackets to the payload. Again, an awesome job done by all. Thank you so much for all the guidance here and on other forums.

Hi all. Thanks again for allowing us to use your knowledge as a steppingstone to figure this out. I have tried to search for a solution to my problem but could not find something yet. Probably just something stupid that I am missing. While borrowing a lot of info from other flows, I have managed to set up a few flows in Node-Red with an active RS485 Modbus/RTU working connection to my 8kw Sunsynk inverter. Using the flex nodes, I can read the registers without a problem and write simple 0/1 settings such as register 248, using an inject node with msg.payload set to string. The issue is when I want to change bigger values such as register 250 or 268 to alter the time or SOC in the system mode timers, only low values such as 5 works (to change to 00:05) If I inject, let's say, 1930 in there, there is no change in the register and also no errors. I think it might be because I understand the data bit lengths wrong, but I am not proficient enough to know where to look. Please help. I am not at home, but I can attach my flow here later if need be. Many thanks in advance.