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•
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.
13.3.3 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
1
2
3
Now switch to unicast and adjust the DEIF ASC to a proper ID:
Inverter number
1
2
3
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.
13.3.4 Alarms for unicast communication
Three alarms can be used when using the unicast approach (due to the continuous handshake with the inverter communications). In
a communication topology where the broadcast method is used, the alarms can be switched off due to one-sided communication
(ASC > inverter).
•
7570, ESS comm error
•
7580, ESS warning
•
7590, ESS shutdown
COMMISSIONING GUIDELINES 4189341077D EN
Inverter Modbus ID
10
11
12
Inverter Modbus ID
10
11
12
Baud rate selected
19200
19200
19200
Baud rate selected
19200
19200
19200
DEIF ASC comm. ID
Menu 7511
Menu 7511
Menu 7511
DEIF ASC comm. ID
10
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Page 43 of 58
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