Echelon i.LON SmartServer 2.0 - Manual (Page 124)

i.LON SmartServer 2.0 Programmer’s Reference 8-6
Property Description
property is defined.
Output
This element defines the output data point for this function
block.
You must specify the assigned to the
output data point within this element. The value of this data
point will be updated with the result of each comparison or
statistical operation that the Analog Function Block
performs.
This property defines the comparison function the Analog
Function Block will use to compare the values of the
compare and input data points. This function will only be
used if the property is set to
FN_COMPARE, FN_OR or FN_AND, and if the
property is not defined. These
properties are described later in the table.
When this function is used, the output data point will be
updated to a True or False value depending on the results of
the comparisons made with this function. If more than one
input data point is defined for the Analog Function Block,
you can specify a percentage with the
property. If that percentage of the
input data points return True, the output data point will be
updated to True. Otherwise, it will be updated to False.
The property is described in more
detail later in this table.
For descriptions of the comparison functions you can use
with your Analog Function Block, see Comparison
Functions.
The percentage of input data points whose comparison
result with the compare data point (or with the value of the
property, if it is defined) must be
True for the output data point is set to True. The
comparison to be performed between the input and compare
data point values is determined by the
selected.
This field has a range of 0.0 to 100.0. For example, if this
field is set to 30.0, 30% of the input data points must return
True in order for the output data point to be set to True.
This property specifies the compare value to be used with
the input data point when the comparison function selected
for the Analog Function Block is FN_OR, FN_AND or
FN_COMPARE. This property will only be used if the
input data point(s) uses a scalar or enumeration value. This
property can not be used if any of the input data point use
the format type SNVT_switch.
If this property is not defined, all the comparisons will be
made with the value of the compare data point. You can