1. APPLICATION AREAS FOR INTEGRATED INTERFACES

2. DATA COMMUNICATION APPLICATIONS
SNAPINVERTER GENERATION Fronius Galvo, Fronius Symo 3.0 – 8.2 kW, Fronius Symo Hybrid, Fronius Primo, Fronius Symo 10.0 – 20.0 kW, Fronius Eco

3. The Fronius Symo, Fronius Symo Hybrid, Fronius Primo, Fronius Galvo und Fronius Eco inverters have numerous permanently integrated interfaces that can be used for a variety of practical applications.
The following slides provide an overview of the various application possibilities
How is the inverter connected to the internet?
How can data be saved locally?
How can the inverter be updated?
How can loads be controlled?
How can the inverter send signals?
How can the inverter be controlled remotely?
How is a dynamic power reduction realized?
How can devices from third-party suppliers be integrated?
How are multiple inverters connected?

4. OVERVIEW OF INTEGRATED INTERFACES
EXTERNal INPUT (F.E. fOr A S0-METer)
FRONIUS Solar.Net IN
FRONIUS Solar.Net OUT
USB INTERFACE
FLOATING RELAY OUTPUT
Digital INPUTS AND OUTPUTS (I/Os)
(ONE OF THEM IS A DIGITAL OUTPUT FOR energY manAgement)
Ethernet
WLAN AntennA 1 2 3 4 5 6 7 1 3 4 8 2 5 6 7 8

5. FRONIUS SYMO / SYMO HYBRID / PRIMO / GALVO / ECO
INTERFACES
FRONIUS SYMO / SYMO HYBRID / PRIMO / GALVO / ECO
WLAN / Ethernet LAN        
Fronius Solar.web, Modbus TCP, JSON, Fronius Push Service
6 inputs and 4 digital inputs/outputs 
Interface to ripple control receiver
Inputs: Voltage level low: min. 0V - max. 1.8V; high: min. 3V - max. 30V / Input resistance: 46kOhm
Outputs: V in total for all four digital outputs when supplied internally
>12.5V to 24V per digital output when supplied externally by an external power supply
USB (type A socket)                 
For USB sticks
2x RS422 (RJ45 socket)
Fronius Solar Net, interface protocol
Signalling output
Floating relay output: Signalling, energy management (Max. 250 V AC / 30 V DC and max. 4 A AC / 1 A DC)
Datalogger and Webserver
Integrated
External input
S0-meter interface
RS485
Modbus RTU SunSpec1) or meter connection
1) Excluding Fronius Symo Hybrid
INTERFACES
FRONIUS SYMO / PRIMO / GALVO / ECO LIGHT
USB (type A socket)              
For USB sticks
2x RS422 (RJ45 socket)
Fronius Solar Net, interface protocol
Signalling output
Floating relay output: Signalling, energy management (Max. 250 V AC / 30 V DC and max. 4 A AC / 1 A DC)
External input
S0-meter interface

6. HOW IS THE INVERTER CONNECTED TO THE INTERNET?
The inverter can be connected directly to the router via LAN (Ethernet) or WLAN
When using WLAN, a cable connecting the inverter to the router is not required
Using the internet connection gives the user access to the Fronius Solar.web online portal as well as Fronius Solar.TV and the Fronius Solar.web App
The connection to Fronius Solar.web ensures that rapid technical support can be provided in the event that servicing is required
Register for Fronius Solar.web at:

7. FRONIUS INVERTER ROUTER FRONIUS SOLAR.WEB PV GENERATOR
WLAN/LAN
FRONIUS SOLAR.WEB
PV GENERATOR
FRONIUS SOLAR.WEB APP

8. HOW CAN DATA BE SAVED LOCALLY?
Data can be saved locally using a USB stick
Simply insert a conventional USB stick and the data from the inverter will be stored on the stick
The data is saved in a CSV file so that it can easily be processed in Microsoft Excel, for example

9. NOTE: SETTINGS ON THE DISPLAY ACCORDING TO OPERATING INSTRUCTIONS

10. HOW CAN THE INVERTER BE UPDATED?
Software updates ensure that the latest version of the software is installed on the inverter
The software can be updated using a conventional USB stick; the inverter has an integrated USB interface for this purpose
Save the new software onto the stick, insert it into the inverter and perform the update
No additional hardware is required for the update process
The Fronius Symo Hybrid can be updated using the web interface of the integrated web server

11. NOTE: SETTINGS ON THE DISPLAY ACCORDING TO OPERATING INSTRUCTIONS
Download the latest software from: – Solar Electronics – Info & Support – Software Downloads
Maximum size of the USB stick: 65 x 30 mm
NOTE: SETTINGS ON THE DISPLAY ACCORDING TO OPERATING INSTRUCTIONS

12. HOW CAN LOADS BE CONTROLLED?
The inverters can turn consumers on and off automatically using power thresholds
If the output level of the photovoltaic system exceeds the preset ON value, the consumer will be switched on
If the output level of the photovoltaic system falls below the preset OFF value, the consumer will be switched off again
Consumers can be connected to the Fronius Symo, Fronius Symo Hybrid, Fronius Primo, Fronius Galvo and Fronius Eco inverters in two different ways:
using a digital output
using a floating relay contact

13. NOTE: SETTINGS ON THE WEB INTERFACE OF THE INTEGRATED WEB SERVER
The inverters can turn consumers on and off automatically using power thresholds
Variant 1 – using a digital output: Heater example: ON at 2 kW, OFF at 1.5 kW, minimum running time: 60 mins
NOTE: SETTINGS ON THE WEB INTERFACE OF THE INTEGRATED WEB SERVER L
GND
I/0 1
Contactor N

14. HOW CAN LOADS BE CONTROLLED?
The inverters can turn consumers on and off automatically using power thresholds
Variant 2 – floating relay contact:
Direct switch on from max. 30V and 1A DC – or max. 250V and 4A AC
Swimming pool pump example: ON at 1 kW, OFF at 0.5 kW
OPERATING INSTRUCTIONS
Pin 2 (root)
Pin 3 (NO contact)
Supply, e.g. 230V AC N

15. HOW CAN THE INVERTER SEND SIGNALS?
Audiovisual alarm devices can be connected to the relay contact
When an error occurs, the inverter switches the relay contact and the signal starts
The relay contact can be used either as an alarm device or to connect a load
OPERATING INSTRUCTIONS
Pin 2 (root)
Pin 3 (NO contact)
Supply, e.g. 230V AC N

16. HOW CAN THE INVERTER BE CONTROLLED REMOTELY?
The ripple control receiver can be connected directly to the inverter so that the PSC can control it remotely
Power reduction and power factor can be controlled using the digital inputs for the ripple control receiver
Digital inputs can be configured by the user

17. ON THE WEB INTERFACE OF THE INTEGRATED WEB SERVER
Up to eight inputs can be configured, one output is available for feedback to the PSC.

18. HOW IS A DYNAMIC POWER REDUCTION REALIZED?
A Fronius Smart Meter or S0-meter can be used, in order to take self-consumption into account for feed-in limits (f.e. 70 % of the kWp, max. 5 kW or similar)
The meter can connected at the feed-in point or directly in the consumption path
The feed-in limit and the number of impulses can be set individually
NOTE: MORE DETAILED
INFORMATION ON THE
INSTALLATION AND
SETUP CAN BE FOUND
IN THE MANUAL OF
THE FRONIUS DATAMANAGER

19. ON THE WEB INTERFACE OF THE INTEGRATED WEB SERVER
Fronius Smart Meter
S0-meter

20. HOW CAN DEVICES FROM THIRD-PARTY SUPPLIERS BE INTEGRATED?
The open interfaces permit easy communication between the inverters and third-party components
Integrating the photovoltaic system into higher-level energy management or home automation systems is therefore a simple matter
The Fronius Symo, Fronius Symo Hybrid, Fronius Primo, Fronius Galvo and Fronius Eco inverters offer the following open interfaces via Ethernet or WLAN:
JSON
Modbus TCP
Modbus RTU (excluding Fronius Symo Hybrid)
For example: Integration into home control system with the Loxone Miniserver to effectively maximise self-consumption

21. WLAN
Network cable or WLAN
Router or switch
Parallel operation of Fronius Solar.web and integration into home control system possible.

22. HOW ARE MULTIPLE INVERTERS CONNECTED?
Multiple Fronius inverters can be connected to each other via the Fronius Solar Net ring, a bus system configured as a ring.
The data connection for Fronius Solar.Net nodes uses a 1:1 connection with 8-pin data cables and RJ45 plugs. A termination plug is plugged in at each end of the ring.
The Fronius Symo, Fronius Primo, Fronius Galvo and Fronius Eco inverters are equipped with the required interfaces (Fronius Solar.Net IN and Fronius Solar.Net OUT).
In a Fronius Solar Net ring, only one Fronius inverter with an integrated datalogger is required; the remaining inverters must be "light" variants.
DATCOM CABLING.

23. Cabling using the Fronius Solar.Net ring:
Termination plug
Fronius Solar.Net IN
Fronius Solar.Net OUT 1) 1)
1) "light" variant