Hi, I'm trying to save all the kWh values for various reasons but they seem to only update somewhere between 1 and 2.5 minutes. Is there a reason they don't update and is there some other source that is updated more frequently? I imagine they are updated every few seconds as the VRM and remote display probably use them for their calculations.
You have “only changes” selected, so the node will filter its output and only send an update if the value changes.
You can disable it and get a constant stream, but repeatedly sending the same data isn’t very efficient for resource usage.
Hi Nick, yes I had that deliberately set. However if I don't set it then I obviously get the same value sent every 5 seconds until the value changes in about 1-2 minutes. ie every 5 seconds I get 1kW until it ticks up to 1.1kW in a minutes time and then I get that every 5secs. I should get all the intermediate values ie 1.01,1.02 as I should get 12 unique values every minute if that particular counter is being used (values made up for sake of argument). The actual values only change every 1-2 minutes, so the "only changes" makes no difference to the actual problem I am experiencing. The kWh values must be constantly updated somewhere in the system so that the remote display can be generated every few seconds.
@Andy156 OK, I did a test on mine. Change the rounding to 2 or 3 digits. Mine then provided granular data.
I'm a few months behind on updates so I'll try going to get latest version when I get time. Its always a bit more involved as I need to fix the filesystem after each update to get my node red projects working.
I don't have a PV inverter so can't measure AC OUT to inverter, but I tested inverter to AC OUT, they should be similar.
Mine sent a message every 5 seconds with 3 digits. It incremented every 3 or 4 messages, depending on loads. It may be that it is a calculated metric that isn't done in realtime.
The screenshot doesn't show any increments as my loads were low when I ran it again, but it definitely works.
