General
General
These operating instructions describe:
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Fronius interface
The Fronius interface protocol is an open data protocol used to read photovoltaic system
protocol
measurement data from the inverter and process it as required.
Measurement data are read using command inputs.
Command inputs are made via a third-party device (PC, etc.)
Data exchange is carried out via a serial interface:
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This provides the following advantages:
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Baud rates
The interface protocol works with one of the following baud rates:
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Fronius system
The Fronius interface protocol can be used with the following system versions:
versions
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The following pages will provide more detail about the individual system versions.
The Fronius interface protocol
Fronius system versions that can use the protocol
RS 232 or RS 422
8 data bits
No parity
1 stop bit
Integration of measurement data in other IT systems (building control, alarm sys-
tems, etc.)
Interface to other data logging systems
2400 Baud
4800 Baud
9600 Baud
14400 Baud
19200 Baud
Up to 100 Fronius IG TL inverters via an RS 422 interface
Up to 100 Fronius IG Plus inverters via an RS 422 interface
Up to 100 inverters via an RS 232 interface
1 inverter via an RS 232 Interface (Interface Card easy)
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