Communication function, Section 5.3, 3 communication function – SMA Sunny Boy Control User Manual
Page 65: Communication, Communicat, Ok…………………………99, Errors………………12š, Level…………1000mv
Sunny Boy Control
SMA Technologie A
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User Manual
SUNBC-14:NE0206
61
5.3 Communication Function
The “Communication” function is useful for diagnosing the communication with the
Sunny Boy inverters and analyzing data transmission failures. First, press [ENTER] to
select an inverter to be diagnosed.
[COMMUNICATION ]
„01…WR700-08
Device ID... device model / serial number
„02…WR700-08
„03…WR700-07 Š
„04…WR700-07
Fig. 5.13: Device selection screen
During the communication test the Sunny Boy Control interrupts its normal operation
and instead sends data requests to the selected Sunny Boy. The test results are dis-
played as follows:
[01:COMMUNICAT.]
Device ID: communication
‡OK…………………………99%
Percentage of correctly transmitted data packets
Packets………10233
Requested data packets
Errors………………12Š
Faulty or ignored data packets
Level…………1000mV
Signal level for Powerline communication
Fig. 5.14: Communication test
The continuously displayed information comprises the percentage of correctly trans-
mitted packages (based on the last 20 data packets), the number of requested data
packets, the number of errors, and (for Powerline communication only) the signal
level.