From leader21

Within this Howto I want to explain how you are getting values from your SMA solar inverter via ethernet. I am using a 3 phase inverter SMA STP 12000TL. This should work with all three phasis inverters from SMA. If you are having a single phase inverter, could be that you will have to adapt the match.

First of all you need to install the tool SBFSpot from here https://sbfspot.codeplex.com/
After you have installed it, create a cronjob with the command sudo crontab -e as follows :

*/5 * * * * /usr/local/bin/sbfspot.3/SBFspot -v -nocsv -nosql -finq | cut --complement -s -f79 > /home/pi/sbfspot.log

This will create a logfile every 5 minutes with the following output :

DC Spot Data:
        String 1 Pdc:   6.315kW - Udc: 520.76V - Idc: 12.127A
        String 2 Pdc:   2.818kW - Udc: 465.10V - Idc:  6.059A
SUSyID: 128 - SN: 2110XXXXXX
AC Spot Data:
        Phase 1 Pac :   2.964kW - Uac: 228.81V - Iac: 13.273A
        Phase 2 Pac :   2.951kW - Uac: 228.24V - Iac: 13.242A
        Phase 3 Pac :   2.955kW - Uac: 228.30V - Iac: 13.259A
        Total Pac   :   8.870kW

Now create a logreader device :

    {
      "id": "pvlog",
      "name": "Photovolatik Energiemonitor",
      "class": "LogWatcher",
      "file": "/home/pi/sbfspot.log",
      "attributes": [
        {
          "name": "acout",
          "type": "number",
          "unit": "kW"
        },
		{
          "name": "actoday",
          "type": "number",
          "unit": "kWh"
        },
	    {
          "name": "actotal",
          "type": "number",
          "unit": "kWh"
        },		
      ],
        "lines": [
        {
          "match": "\\s*Total Pac\\s*:\\s*([0-9]+\\.[0-9]+)kW",
          "acout": "$1"
        },
	    {
          "match": "\\s*EToday\\s*:\\s*([0-9]+\\.[0-9]+)kWh",
          "actoday": "$1"
        },
		{
          "match": "\\s*ETotal\\s*:\\s*([0-9]+\\.[0-9]+)kWh",
          "actotal": "$1"
        }
     ]
    },

If everything is set up correctly, you should now get a device looking similar than this :

I also used the pimatic-ping plugin to visualize the presence of the solar inverter (device to the right) as follows :

{
  "id": "smawechselrichter",
  "name": "SMA Wechselrichter",
  "class": "PingPresence",
  "host": "192.168.178.29",
  "interval": 600000
}

If you are having the pushover plugin installed you can now send a message if your inverter is going offline for example.

Well, then have fun with it ;)