Read out all values from SMA inverters in local network via Modbus TCP. You don't need the SMA Sunny Portal anymore.
Tested with SMA Tripower STP 20000TL-30 and Python 3.7 under Windows 10 and CentOS 7
This is a fork of py-sma-modbus:
- fixed bugs with signed int registers and string registers
- removed the "GUI" (problems under Windows)
- a bit more pythonic
- values in correct dimension with units
- all types and TAGLIST are supported
- nice formatting with automatic unit prefixes
- load registers from file
- output values to openhab REST web service
- Write Registers
- Register description and TAGLIST in English or other language
- Enable with the SMA tool "Sunny Explorer" the Modbus TCP protocol on the inverter (UDP is not needed)
- Make sure that the inverter has a static IP Adress (or always gets the same IP via DHCP)
- Download the code or clone it:
git clone git@github.com:stefanlsa/py-sma-modbus2.git
cd py-sma-modbus2
pip install -r requirements.txtusage: main.py [-h] [-d] [-i INTERVAL] [-l] [-log] [-a ADRESS] [-p PORT]
[-u UNIT] [-all] [-f FILE] [--ohitems] [--ohlogport OHLOGPORT]
[-o OHLOG]
[registers [registers ...]]
Gather data of your sma inverter
positional arguments:
registers list of register numbers
optional arguments:
-h, --help show this help message and exit
-d, --daemon keep polling
-i INTERVAL, --interval INTERVAL
time in seconds between polls
-l, --list list all registers
-log, --log log results in table-format
-a ADRESS, --adress ADRESS
modbus-TCP ip-adress
-p PORT, --port PORT modbus-TCP ip-port, default: 502
-u UNIT, --unit UNIT modbus unit, default: 3
-all, --all Read All Registers
-f FILE, --file FILE Read the registers from the file, the registers must
separated with line break
--ohitems Print the Openhab items for the registers, use the
register file for nice formatting
--ohlogport OHLOGPORT
Port of the Openhab-Server where the results will be
written
-o OHLOG, --ohlog OHLOG
Log to Openhab; IP/Url of of the Openhab-Server where
the results will be writtenQuery single register
$ python main.py -a"192.168.0.48" 30775
30775 GridMs.TotW (Leistung) 1.23 kWQuery single register, ervery 60 seconds (daemon)
$ python main.py -a"192.168.0.48" -d 30775
30775 GridMs.TotW (Leistung) 1.23 kW
30775 GridMs.TotW (Leistung) 2.34 kW
30775 GridMs.TotW (Leistung) 3.45 kW
...Query all registers
$ python main.py -a"192.168.0.48" -all
Query registers defined in a file
$ python main.py -a"192.168.0.48" -f"registers.txt"
Generate openhab items for registers defined in a file
$ python main.py -a"192.168.0.48" -f"registers.txt" -ohitems
// AC-Seite
Number SMA_Metering_TotWhOut "Gesamtertrag [%.0f Wh]" <none> (SMA)
Number SMA_Metering_DyWhOut "Tagesertrag [%.0f Wh]" <none> (SMA)
String SMA_Metering_TotOpTms "Betriebszeit [%s]" <none> (SMA)
String SMA_Metering_TotFeedTms "Einspeisezeit [%s]" <none> (SMA)
Number SMA_Operation_GriSwCnt "Anzahl Netzzuschaltungen [%.0f ]" <none> (SMA)
Number SMA_GridMs_TotW "Leistung [%.0f W]" <none> (SMA)
Number SMA_GridMs_W_phsA "Leistung L1 [%.0f W]" <none> (SMA)
Number SMA_GridMs_W_phsB "Leistung L2 [%.0f W]" <none> (SMA)
Number SMA_GridMs_W_phsC "Leistung L3 [%.0f W]" <none> (SMA)
Number SMA_GridMs_PhV_phsA "Netzspannung Phase L1 [%.2f V]" <none> (SMA)
Number SMA_GridMs_PhV_phsB "Netzspannung Phase L2 [%.2f V]" <none> (SMA)
Number SMA_GridMs_PhV_phsC "Netzspannung Phase L3 [%.2f V]" <none> (SMA)
Number SMA_GridMs_TotA "Netzstrom [%.3f A]" <none> (SMA)
Number SMA_GridMs_Hz "Netzfrequenz [%.2f Hz]" <none> (SMA)
Number SMA_GridMs_TotVAr "Blindleistung [%.0f VAr]" <none> (SMA)
Number SMA_GridMs_VAr_phsA "Blindleistung L1 [%.0f VAr]" <none> (SMA)
Number SMA_GridMs_VAr_phsB "Blindleistung L2 [%.0f VAr]" <none> (SMA)
Number SMA_GridMs_VAr_phsC "Blindleistung L3 [%.0f VAr]" <none> (SMA)
Number SMA_GridMs_TotVA "Scheinleistung [%.0f VA]" <none> (SMA)
Number SMA_GridMs_VA_phsA "Scheinleistung L1 [%.0f VA]" <none> (SMA)
Number SMA_GridMs_VA_phsB "Scheinleistung L2 [%.0f VA]" <none> (SMA)
Number SMA_GridMs_VA_phsC "Scheinleistung L3 [%.0f VA]" <none> (SMA)
Number SMA_GridMs_A_phsA "Netzstrom Phase L1 [%.3f A]" <none> (SMA)
Number SMA_GridMs_A_phsB "Netzstrom Phase L2 [%.3f A]" <none> (SMA)
Number SMA_GridMs_A_phsC "Netzstrom Phase L3 [%.3f A]" <none> (SMA)
// DC-Seite
Number SMA_Isolation_LeakRis "Isolationswiderstand [%.0f Ohm]" <none> (SMA)
Number SMA_DcMs_Amp_MPPT1 "DC Strom Eingang MPPT1 [%.3f A]" <none> (SMA)
Number SMA_DcMs_Vol_MPPT1 "DC Spannung Eingang MPPT1 [%.2f V]" <none> (SMA)
Number SMA_DcMs_Watt_MPPT1 "DC Leistung Eingang MPPT1 [%.0f W]" <none> (SMA)
Number SMA_DcMs_Amp_MPPT2 "DC Strom Eingang MPPT2 [%.3f A]" <none> (SMA)
Number SMA_DcMs_Vol_MPPT2 "DC Spannung Eingang MPPT2 [%.2f V]" <none> (SMA)
Number SMA_DcMs_Watt_MPPT2 "DC Leistung Eingang MPPT2 [%.0f W]" <none> (SMA)
Number SMA_Inverter_DclVol "Zwischenkreisspannung [%.2f V]" <none> (SMA)
Number SMA_Isolation_FltA "Fehlerstrom [%.3f A]" <none> (SMA)
Number SMA_DcMs_Amp__1 "DC Strom Eingang ?1 [%.3f A]" <none> (SMA)
Number SMA_DcMs_Am__2 "DC Strom Eingang ?2 [%.3f A]" <none> (SMA)
// Status
String SMA_DtTm_Tm "Systemzeit [%s]" <none> (SMA)
String SMA_Operation_Health "Zustand [%s]" <none> (SMA)
String SMA_Operation_Evt_Prio "Empfohlene Aktion [%s]" <none> (SMA)
String SMA_Operation_Evt_Msg "Meldung [%s]" <none> (SMA)
String SMA_Operation_Evt_Dsc "Fehlerbehebungsmaßnahme [%s]" <none> (SMA)
Number SMA_Operation_Evt_EvtNo "Aktuelle Ereignisnummer für Hersteller [%.0f ]" <none> (SMA)
String SMA_Operation_PvGriConn "Netzanbindung der PV-Anlage [%s]" <none> (SMA)
Number SMA_Coolsys_Cab_TmpVal "Innentemperatur [%.1f °C]" <none> (SMA)
String SMA_Operation_OpStt "Betriebsstatus [%s]" <none> (SMA)
Query registers defined in a file, and send it to openhab (or other REST web service, if you modify the openhablogger)
$ python main.py -a"192.168.0.48" -f"registers.txt" -o"192.168.0.200"