Is there a way to readout and log a s0 port on a KWH meter?
S0 kWh meter readout
Guess there’s no native solution. you can use volkszaehler.org and the pimatic - volkszaehler plugin. as far as i remember there’s a way to read out the s0 impulses via gpio.
another try could be to use a script/daemon to catch the s0 signals via gpio or use an external s0 logger. maybe you can also use an esp8266 for logging. but that’s beyond me.
just my 2 cents.
Don’t know where you’re from, but here’s a german tutorial from another VZ user that might help or be the beginning of your search … http://blog.webernetz.net/2014/10/13/stromzahler-mit-s0-schnittstelle-vom-raspberry-pi-auswerten/