MATLAB: Error message relating to powergui

error messageopenfcnpowerguipsb option

I've run a detailed simulation using the continuous powergui. When I double click the powergui block to perform a FFT analysis the following error message appears:
'Error evaluating 'OpenFcn' callback of PSB option menu block block (mask) 'powergui'. Attempt to reference field of non-structure array.'
I'm using fcn blocks but none are called 'OpenFcn'. What is a PSB option menu? The simulation functions correction but powergui won't allow me to perform FFT.
Any help would be much appreciated.

Best Answer

'OpenFcn' is one of the several callbacks that a block can have - in this case, it is executed when the powergui block is opened. I think "PSB option menu block" is simply the value of the MaskType property of the powergui block.
Essentially, it looks like the error is being thrown from the software itself. This could be due to a bug in SimPowerSystems, or something unexpected (like a corruption) happening in your model.
I would recommend that you report this to Tech Support, so they can diagnose the issue.
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