Fronius IG-TL Serie Manual De Instrucciones página 39

Commands for inverters are addressed directly to an inverter in the ring network. Mes-
Function descrip-
sages are forwarded in the inverter ring from one inverter to the next. The inverter being
tion for systems
addressed sends a reply frame.
with up to 100
inverters via RS
422 (IG Plus, IG When an inverter receives a reply frame that has the same network number as its own,
TL) this inverter overwrites the reply frame with an error message.
When a query is sent to an inverter that does not exist in the ring, the sender receives
the unanswered frame as a response.
Function descrip- Commands are sent to the interface card. The interface card determines the requested
data in connection with Solar Net. In addition, a datalogger is required in the system to
tion for systems
with up to 100 enable data communication within Solar Net.
inverters via RS
232
Function descrip- Commands are sent to the Interface Card easy. The Interface Card easy can directly
tion for systems output inverter data via an internal bus system.
with 1 inverter
via RS 232 (Inter-
face Card easy)
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