Polls now cover meter 1, battery 1 and storage control blocks,
plus inverter event registers for off-grid detection (vendor
event bit 0). Register layout validated by probing a
SE10K-RWB48BFN4 with fw 0004.0025.0011; battery and storage
floats are word-swapped on this device.
Failed Influx writes spool to disk and replay on the next
success (Influx reached over WAN). Modbus blocks that fail to
read are skipped for that cycle; the flaky gateway must not
kill the daemon. Battery lifetime counters at 0xE176/0xE17A
hang the device and are never read.
BREAKING CHANGE: config.yaml 'mqtt:' section replaced by
'influx:', Home Assistant discovery removed.
When you read the registers one-by-one, which is what the solaredge_mobus
library is doing, you run into the issue where the value and the scale
are sometimes out of sync.
This happens mostly when the values go up or down a lot, like at the
beginning and at the end of the day. At these times the SolarEdge
inverter can change the scale of the values it's returning.
When you read the value register, the scale might be -2, but in the
time between that request, and the request for the scale, the inverter
has changed the scale to -3. So in the next register read, you will get
-3 for the scale, but have a value in the scale of -2. Now when you do
the value calculation, you end up with a factor 10 difference.
So it's better, and also _much_ faster to read out all the registers
at once and then parse the values from this bigger read out.
I'm planning to do a MR back to solaredge_modbus with this change, so
for now i've just included that code into this project.
So it's safer to configure, as we don't need to pass env variables
to a docker run service. Also it's easier to configure without
needing to pass a whole lot of env vars.
dj7nt
Marijn Koesen