• 7561, select the inverter type.
• 7562, select broadcast or unicast.
◦ Broadcast at multiple string inverters.
◦ Unicast at single string inverters or central inverters.
• 7563, transmit rate, set it to 1-2 seconds. Don’t set it below 1 second unless advised to.
• 7564, transmit telegram, use 0x06h prior to 0x10h. Switch to 0x10h if 0x06h is not responding.
Schneider, ABB uses 0x10h, Fronius, SMA uses 0x06h, inverters following Sunspec uses 0x06h.
13.2.3 Verification of the communication
Notice that it is often convenient to start with the communication adjusted to “UNICAST” even though broadcast is eventually going
to be used.
Inverter number
Inverter Modbus ID Baud rate selected DEIF ASC comm. ID
1 10 19200 Menu 7511
2 11 19200 Menu 7511
3 12 19200 Menu 7511
Now switch to unicast and adjust the DEIF ASC to a proper ID:
Inverter number
Inverter Modbus ID Baud rate selected DEIF ASC comm. ID
1 10 19200 10
2 11 19200 -
3 12 19200 -
This means that the inverter number 1 will be tested and should respond to the ASC set points. By switching the menu 7511 to ID11
and ID12 (in this example), the other two inverters can be tested.
This means that the communication can be verified and eventually switched to “broadcast” (where all three inverters will respond).
Not all inverters support this method of using unicast.
COMMISSIONING GUIDELINES 4189341077D EN Page 41 of 58
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