Index Exceeds Matrix dimension error when masking subsystem

Question

Jill 2012-1-24

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https://ww2.mathworks.cn/matlabcentral/answers/26982-index-exceeds-matrix-dimension-error-when-masking-subsystem

Hello,

I have a subsystem where I use the CAN Transmit block in the Vehicle Network Toolkit. If I mask the subsystem, I get the error "Unable to query hardware information for the selected CAN channel object. Index exceeds matrix dimensions". If I leave it unmasked, it works fine. I need to use this subsystem multiple times and I would like to mask it so I can make it a library component and adjust the parameters. Does anyone know why CAN transmit doesn't work while masked?

Any help would be greatly appreciated.

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Answer 1

Shankar Subramanian 2012-1-25

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Hi Jill,

Yes, it is a bug and has been reported. Can you contact MathWorks technical support and we will be able to give you a workaround for your current release. What version are you running?

Thanks

Shankar

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Jill 2012-1-30

Do I need to contact someone specifically or just mathworks in general?

Shankar Subramanian 2012-1-31

You need to call MathWorks Technical Support Team: http://www.mathworks.com/support/contact_us/

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Answer 2

Jill 2012-2-17

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I believe the xPC CAN transmit block has the same problem. It results in a different error, "undefined function or variable" when you try to use the variable name from the mask in a CAN transmit block (I am using the CAN-AC2-PCI from the CAN softing library). Can someone please verify this for me.

Also, just FYI, MathWorks does not have a work around for this. I worked with them on this and the final outcome was it would be put in an "enhancement request" for future releases.