DC Motor PID Control Simulation

[Mbdeck]

Hi everyone,

I'm trying to practice how to tune a DC motor PID gains using a simple simulation vi. I'm using a short tutorial at ni.com but I can't reproduce the simulator VI. I have attached my VI and picture of the VI code from the tutorial.  I don't understand how the data type conversion was made in the connection between the collector express vi and the xy graph indicator.  Please see attachments. I will appreciate any assistance.

Thanks

[srikrishnaNF]

hi Mbdeck,

 why are you using xy graph instead of using normal Waveform graphs?

Thanks and regards,

srikrishnaNF

[Mbdeck]

I was using xy because that's what they used in the tutorial. You can take a look at it here.

http://zone.ni.com/devzone/cda/tut/p/id/6931

[Mbdeck]

Also, I'm trying to display two outputs on one graph. One output is the signal set point while the other is the response. The build array function contains two arrays of clusters. I just don't understand how the data type was manipulated and connected to the xy graph.

[Mbdeck]

Hi everyone,

I just figured out my problem. I was using the wrong type of collector vi. 

[A.Hakim]

Hello

I'm also using the same tutorial but 

I'm interested to control a DC motor model but with another input which is TL....
for example in Labview there is simEx DC Motor.vi
which has two inputs Voltage and TL
if I set TL to Zero and concerned only with Voltage input ...I can tune PID using the stated mrthod in the tutorial ( manual (trial and error))  but when I increase TL to some value, I can not tune PID controller...any help or suggestion please?