Iterating s-function parameters with a For-Each subsystem

I am attempting to use an S-function inside a For-Each subsystem. The S-function block has 4 S-function parameters, and I want to iterate one of those parameters using the For-Each subsystem.

It seems this should be possible -

• S-function parameters are tunable according to both discovery techniques.
• ssSupportsMultipleExecInstances is set in the S-function.
• ssSetSFcnParamTunable is set to SS_PRM_SIM_ONLY_TUNABLE in the S-function.

However, when I UpdateDiagram I get a message similar to this:

Parameter 'SFcnBlockParameter' of block 's-function_blockname' cannot reference partitioned mask parameter 'xxxx' of For Each subsystem 'sysname' because parameter 'SFcnBlockParameter' is not tunable.

The message is presented if the S-function block has a mask, and if doesn't.

I can't seem to find information on this SFcnBlockParameter anywhere... Is there something else that needs to be set in the s-function? Is there a Model Configuration Parameter that needs to be set?

Answer 1

[Mark McBroom]

Is the "Tunable" box checked in the block mask editor ?

[John Harris]

I've tried this with the s-function being both masked and unmasked; and yes, I've had that mask parameter tuneable if the S-function block was masked.

The for-each subsystem is also masked (to allow passing parameters in) and that parameter is tuneable, although I don't think that would have a bearing since I am not changing its value per se...it's the value that is divided for each 'for.'