The Unlinked I/O Flags List identifies, for a given hierarchical design, all lower-level I/O flags that are not fully linked to a higher-level assembly. This report is a crucial component of the system model validation and verification, since it will point out the following:
lower-level I/O flags that have been marked for internal use only
lower-level I/O flags for which there is no corresponding port on the upper-level linked assembly
lower-level I/O flags for which the corresponding port on the upper-level linked assembly has been marked unused
lower-level bidirectional I/O flags for which the corresponding port on the upper-level linked assembly is not bidirectional
Report Content
The Unlinked I/O Flags List consists of a single table similar to the one depicted below:
Unlinked I/O Flags List
##
Lower-Level I/O Flag
Linked Assembly
I/O Type
Link Status
1
Electronic Processor:Cooling Air In
Electronics Control:ECU
Input
Internal
2
Electronic Processor:Decision Point of Test
Electronics Control:ECU
Bidirectional
Internal
3
Electronic Processor:Module Heat
Electronics Control:ECU
Output
Internal
4
Electronics Control:LF OSOL
Brkg Electronics
Bidirectional
Output
5
Electronics Control:RR ISOL
Brkg Electronics
Bidirectional
Unlinked
6
Electronics Control:RR OSOL
Brkg Electronics
Bidirectional
Internal
7
LF Disk Cyl:To Accumulator
LF Disk Cyl
Output
Unlinked
8
RF Disk Cyl:Outlet Solenoid
RF Disk Cyl
Bidirectional
Input
9
RR Disk Cyl:Inlet Solenoid
RR Disk Cyl
Bidirectional
Unlinked
10
RR Disk Cyl:Outlet Solenoid
RR Disk Cyl
Bidirectional
Unlinked
This table is comprised of the following five columns:
## column - this column sequentially numbers the lower-level, unlinked I/O flags that are listed in the report. The last entry in this column thus specifies the total number of unlinked or partially-linked I/O flags in the levels of the hierarchical design defined by the hierarchical expansion.
Lower-Level I/O Flag - this column lists all unlinked or partially-linked I/O flags that exist in lower levels of the hierarchical design (up to the levels specified in the hierarchical expansion). Each entry consists of a design prefix (colored blue) and I/O flag name (colored green).Both the prefix and the flag name are hotlinked to the design containing the I/O flag. Click on the prefix to load the design file (if necessary) and then click on the I/O flag abbreviation to locate that flag in the design window.
Linked Assembly - this column lists the assembly to which the design containing the corresponding I/O flag is linked. When the assembly exists in a design other than the top-level design, then a design prefix (colored blue) is prepended to the assembly name (which is colored black). Both the assembly name and prefix (when included) are hotlinked to the design containing the assembly (that is, the design one level above that containing the unlinked I/O flag).
I/O Type - this column lists the flow direction of the corresponding I/O flag. This is the opposite of the flow direction of the flag's ports (for example, an I/O flag that has only input ports on it is considered to be an output flag).
Link Status - this column specifies the reason why the I/O flag is listed in the report. There are four possible entries in this column:
Internal - indicates that the given I/O flag has been marked as having only local visibility in the lower-level design
Unlinked - indicates that there is either no port on the associated assembly that matches the given I/O flag, or that the corresponding port exists, but is marked as unused
Input - indicates that an input port on the associated assembly corresponds to a bidirectional I/O flag in the lower-level design
Output - indicates that an output port on the associated assembly corresponds to a bidirectional I/O flag in the lower-level design
