Why do I get this error? Undefined function 'abs' for input arguments of type 'Simulink.Parameter'.

2014 4 9
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更新时间：2014 4 11
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I get Undefined function 'abs' for input arguments of type 'Simulink.Parameter' error and I do not know why because I do not use any abs functions. I'm useing simpowersystem modeling and i need to have blocks parameters set as ImportedExtrn storage class.

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Niklas Nylén
Niklas Nylén 2014-4-9

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Are you using the parameter as a mask value? There may be something below the mask that is attempting to use the parameter that cannot handle Simulink.Parameter parameters.

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Jernej
Jernej 2014-4-10
I am not using any masks. I just use standard simpowersystem blocks and lookuptables and constants from simulink library.
Niklas Nylén
Niklas Nylén 2014-4-11
Simpowersystem models are likely masked systems (I don't have it so I can't check). If you use the Simulink.Parameter in the mask of a simpowersystem block there could be a (bad) implementation of abs(parameter) inside that block.

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