SMA Sunny Boy Control User Manual
Page 117
Sunny Boy Control
SMA Technologie AG
User Manual
SUNBC-14:NE0206
113
Formulas
In addition to the four basic operations, formulas can include parentheses, integra-
tions, differentiations, and channel sums.
Allocation Explanation
=
Marks the beginning of an allocation
+, -, /, *
Basic operations
Ex.: =17*4+3
(...) Subcalculations
Ex.: =17*(4+(2*3-7))
[Name]
Value of a Sunny Boy Control Plus channel. (The channel name has to be
within square brackets.).
Ex.: [Pac], [Eac], [+VAR-1], [+Mess1]
[XY:Name]
Value of an inverter channel. (The channel name is preceded by the device
ID. Both have to be within square brackets.)
Ex.: [01:Pac], [02:Etot]
[SUM:Name]
Sum of a channel’s values from all inverters
Ex.: [SUM:Iac] totals the Iac values of all inverters.
=INT(...)
The result of the formula is integrated.
Ex.: Eac =INT( [Pac]/1000)
The values are erased at the end of the day.
=DIF(...)
The result of the formula is differentiated.
Ex.: Pac =DIF( [Pac]/1000)
=MAX(...)
The maximum value of a formula is determined on a daily basis.
Ex.: Pac-max (daily maximum power) =MAX( [Pac] ) (The values are erased at
the end of the day.)
Table 7.14: Variable formulas