ETAS MDA V8.5 - Calculated Signals Details; Data Types

ETAS 4 Calculated Signals
As NaN prevents calculation for a sample, the condition is true if
the input signal has at that point in time a NaN sample.
You can directly replace the lengthy If-Then-Else function with
the shorter SetNoValueStatus function:
InputSignal_without_NaN = SetNoValueStatus
(InputSignal, InputSignal =! InputSignal)
You can use the InputSignal_without_NaN for calculations
with history (like Average, Minimum, Maximum) and still get a res-
ult in which the NaN samples are excluded.
2. Excluding NaN samples from integral calculation
As already mentioned above, the No Value state effects an integ-
ral calculated in an undesired manner.
Therefore, to exclude NaN values from an integral calculation, you
must use the If-Then-Else calculation, so that the NaN
samples get the neutral value for the integral calculation, namely 0.
Integral_excl_NaN = Accumulate_Prefix_Integral
( InputSignal =! InputSignal ? 0 : InputSignal)
4.4 Calculated Signals Details
4.4.1 Data Types
The following table gives an overview of the data types supported in calculated
signals:
Name Bits Supported
Signed Integer 8, 16, 32, 64 bit
1
Yes
Unsigned Integer 8, 16, 32, 64 bit
1
Yes
IEEE Floating Point 32, 64 bit Yes
Boolean Yes
String No
2
Enumeration No
2
Mixed (combination of numeric and
enumeration)
No
2
Array No
Event No
2 3
1
Other bit sizes in input files are supported but the data is converted to the next
higher available size.
2
The type can be displayed but is not supported in calculated signals.
MDA V8.5 - User Guide 63