Specify this S-function should be placed as soon as possible
Specifies that this S-function should be placed as soon as possible
in the block sorted order. The
uses a hierarchical sorted order such as that used by blocks (Rules for Block Priorities).
Within a subsystem, the Simulink® engine places an S-function
block using this option as far up in the sorted order as possible
without changing the model's semantics. If the S-function's Priority block
property is set, and other blocks in the same subsystem have the same
priority, the engine places S-functions with this option before the
other blocks in the same subsystem with the same priority. This option
is typically used by devices connecting to hardware when you want
to ensure the hardware connection is completed first.
Simulink honors the
relative to other blocks, only if this block and the other blocks
are in the same subsystem. As a result, Simulink does not compare
two blocks set with
SS_OPTION_PLACE_ASAP if they
exist in different subsystems. In addition, Simulink might not
place blocks with
SS_OPTION_PLACE_ASAP set before
SS_OPTION_PLACE_ASAP set if they
are in different subsystems.
For more information on block sorted orders, see What Is Sorted Order?.