Manages I/O points in the current RTDB that can hold a numeric value.
Expand All
Expands the hierarchy tree for all point names in the point table. Point names with periods in the names are hierarchical names and are displayed as a tree. In the above screen shot, A.ai000 and A.ai001 display ai000 and ai001 as children of the A node.
Collapse All
Collapses the hierarchy tree for all point names in the point table to show just the top level nodes.
Filter Points
Displays in the points table only I/O points whose name matches the regular expression. See Regular Expressions.
Demonstrate
Opens a short video clip that demonstrates the basic workflow of this form.
Help
Opens this section of the manual.
Points Table
List of all the analog I/O points in the Current RTDB. Click on a point to select it for editing, deletion or copying.
Delete
Deletes the analog point selected in the Points Table. This button is enabled only if a point is selected in the Points Table.
Copy
Creates a copy of the analog point selected in the Points Table. A unique name based on the original point name will be created for the new point. This button is enabled only if a point is selected in the Points Table.
New
Creates a new point. A unique name will be created for the new point.
Current RTDB
Shows the name of the real-time database currently loaded for editing. See New/Select RTDB....
Apply
Commits all pending edits to the real-time host. See Apply .
Cancel
Discards all pending edits.
Name
Name of the selected point in the Points Table. Hierarchical names are shown “flat” with a period between each node of the hierarchy. Rename the point by simply typing in a new name.
Default Value
Value in engineering units that the selected point is set to at the beginning of a test run. If it is not specified (the field is blank), the value of the point at the beginning of a test run is undefined.
Point Type
Directional type of the point.
Input
The point may hold values read from an I/O device.
Ouput
The point may hold values to be written to an I/O device.
Input or Output
The point may hold values read from or to be written to an I/O device.
Dimensions
Dimensionality of the I/O point. A “scalar” point can hold only a single value. An array may hold multiple values. The size of each dimension should be specified as an integer, and each dimension separated by the letter ‘x’. The total number of elements is displayed next to the field.
Most boards require only scalar points. See AI64SS:Stream for an example of a board that supports array points.
Description
Brief description of the point for documentation purposes.
Log to File
Enables periodic logging of values of the point. See Logging.
Logging Period
Sets the period for logging for the point. The period can be the simulations’s frame rate or a rate chosen from the drop down list when the field is clicked on.
C Type
Internal representation of the point’s value as a ‘C’ type.
Signed EU Value
Enables signed values. This is particularly important for items that are mapped to ARINC or AFDX messages as this defines whether the most significant bit in the field is a sign bit or not.
Engineering Unit
Name of the units (e.g., volts, amperes) of the value if the point.
Enable
Enables conversion between the raw value read from or written to the hardware and the engineering unit (EU) of the point. The relationship may be specified in one of two ways. A linear conversion may be specified by filling in the A and B values for the equation EU=A*raw+B. A non-linear conversion may be specified by selecting a named conversion from the drop down list below the A and B values. Select <NONE> from this list to enable the A and B values.
A
Slope of the linear conversion equation. This field is enabled only if the named conversion is <NONE>.
B
y-intercept of the linear conversion equation. This field is enabled only if the named conversion is <NONE>.
Named Conversion
Named non-linear conversion function. See Engineering Units Conversions.... Select <NONE> to fill in a linear conversion equation above.
Enable
Enables engineering unit limit checking. If the engineering unit value is outside the minimum and maximum limits, the EU error flag is set and an error message is logged.
Clamp Value to EU Limit
Enables setting the point’s value to the minimum or maximum limit value if, respectively, the minimum or maximum limit is violated.
Max
Maximum engineering unit value.
Min
Minimum engineering unit value.
EU Message Period (s)
Repeat rate in seconds for logging duplicate engineering unit limit violations.