SMA Sunny Boy Control - Manual (Page 60)

Sunny Boy Control
SMA Technologie A G
User Manual SUNBC-14:NE0206 56
“OK-total” evaluates the communication quality for the entire day. At least 100
data packets are required. The evaluation takes place at the end of the day. In case
of a failure, the error message “Communication” is generated.
Access Details
[01:ACCESS ] Device ID: access
‡Tolerance…30min Max. timespan during which a device cannot be accessed Section 6.2.4
Offline……00:00h
Has not been accessed for
Online………04:17h
Operation time today
----------------
last access…
…08/18/03 14:34 Date & time of last access made to the device
Fig. 5.5: Access details from diagnostic report
If the “Offline” timespan (time since the device was last accessed during operation)
exceeds the maximum amount set in the menu “Setup…System…Tolerances” (in
other words, there is a communication failure), the “Offline” warning message is
activated.
“Online” shows the operating time (availability) of the device since 12 a.m. (0:00).
If a device cannot be contacted for a whole day (total communication failure), the
error message “24h Offline” will be displayed.
Yield Details
[01:YIELD ] Device ID: yield
‡Tolerance………50%
Expected E-Ratio (refer to section 6.2.4)
E-Ratio……………98% Percentage ratio between E-Yesterday and E-Average (see below)
---------------Š
E-Yesterday…
…………4980Wh
Energy yield of the device
E-Average…
…………5070Wh
Average energy yield of a comparable device in the system
Fig. 5.6: Yield details from diagnostic report
“Tolerance” refers to the maximum error tolerance set under “Energy” in
“Setup…System…Tolerances” (refer to section 6.2.4).
“E-Ratio” is derived from the values for “E-Yesterday” (previous-day energy
yield of the device) and “E-Average” (previous-day mean energy yield of a compa-