Can the IC (Initial condition) block in Simulink take a Simulink.Bus object as a parameter from the base workspace?

Hello folks,

I hope you are doing well!

I have been trying to use the IC (initial condtion) block to initialise an input in my Simulink model as I am looping an output to a input via a unit delay block (to prevent an alegbraic loop error), but I am having issues with this as I keep getting an error: Invalid setting in 'Nameofmodel/IC' for parameter 'Value'.

I am trying to feed the IC block a Simulink.Bus object that I have created using the Simulink.Bus.createObject() (struct to bus) in the MATLAB workspace. I have read the IC block documentation and the block characteristics have 'bus' as a data type so I wanted to confirm with someone in the Mathworks community whether if you can successfully use a bus objects as a parameter for an IC block in Simulink?

Thank you for taking the time to read my question and I would appreciate any help with resolving my issue.

Answer 1

[Paras Gupta]

Hey Sungwoo,

I understand that you receive an error when setting a 'Simulink.Bus' object as an 'Inital Value' parameter in the IC block.

The block characteristics which have the data type 'bus' listed indicate the data type of the input/output signal of the block. The input 'Port_1' and output 'Port_1' of the IC block support the 'bus' data type as per documentation.

However, the 'Initial Value' parameter does not support a 'Simulink.Bus' object. Please refer to the description of 'Initial Value' under the 'Parameters' section in the following link.

https://www.mathworks.com/help/releases/R2023a/simulink/slref/ic.html

Hope this answers your query.

[Sungwoo David]

Thank you for taking the time to answer my question Paras Gupta!

Very well articulated.