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Level 2 M-File S-Function Block inside algebraic loops
Posted:
May 20, 2008 9:13 AM
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Hi,
for testing purpose I have created a Level 2 M-File
S-Function Block with two inputs and one output. The output
is simply the addition of the inputs. Further I build an
algebraic loop solving the equation 4+3*x=x. When I used the
sum block for this model everything is fine. But when I use
the described S-Function block instead of the sum block
there?s an error:
"Cannot solve algebraic loop involving 'testloop1/Gain2'
because it consists of blocks that cannot be assigned
algebraic variables, i.e., blocks with discrete-valued
outputs, blocks with non-double or complex outputs,
Stateflow blocks, or nonvirtual subsystems."
Is there a way to use S-Function in algebraic loops?
I tried the directfeedthrough=yes option but it didn?t helped.
Thanks
Malte
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