Signal Generator Work Around

[mmazzuc1]

Hi,

I am trying to use simulink to test multiple actuators depending on the type of control, longitudinal, collective, lateral etc.. I have my simulink model set up where I can make the actuator type selection via GUI to feed my simulink model the parameters for a longitudinal, collective, lateral control etc.

I am at the point where I want to use the signal generator to test various performance requirements specific to each actuator. Is there a way I can select which index signal I want run without simulink generating all the signals in the signal generator? I have tried doing this manually using a multichannel switch, but the run time is slow because simulink calculates the signals even if they are unused.. So what I am looking for is the most efficient way that can be interfaced with GUI.

 

[GregLocock]

Thinking out loud, do signal generators have an enable input?

Or, precalculate your signals iand then just read in the appropriate files

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376

http://eng-tips.com/market.cfm?

 

[mmazzuc1]

It doesnt seem like there is an enabler. Thats why I had to use a multiswitch along with all of the output ports from my signal generator to select which signal I wanted to pass forward.

Generating my signal would be possible, however It wouldnt be practical if I needed to modify any of the signals quickly.

 

[GregLocock]

There's nothing stopping you from ripping the guts out of the sig gen and adding a selector switch tot he front end is there?

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376

http://eng-tips.com/market.cfm?

 

[mmazzuc1]

How do you do that?

 

[GregLocock]

Sorry I hadn't realised it was masked.

Since I use m files by default, the ugly way is to write an m block

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376

http://eng-tips.com/market.cfm?

 

[mmazzuc1]

Solution found. You can change groups from the command window.

e.g. if I have a .mdl named mike, and lets say my signal builder is in a subsystem called hello this would be how to access it.
You can also double click on signal builder block and get the 'mike/hello' reference from the bar at the top of the signal builder GUI.

signalbuilder('mike/hello','activegroup',(enter group index #))