Go to Post When we find bugs at work, we don't ask "who wrote that section of code?" We ask "Who is the best, most knowledgeable person to work on fixing this bug?" - Jon Stratis [more]
Home
Go Back   Chief Delphi > Technical > Programming > NI LabVIEW
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #2   Spotlight this post!  
Unread 15-02-2012, 14:57
Ether's Avatar
Ether Ether is offline
systems engineer (retired)
no team
 
Join Date: Nov 2009
Rookie Year: 1969
Location: US
Posts: 8,120
Ether has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond repute
Re: PID Velocity Control

Quote:
Originally Posted by j.cole View Post
Should this code work to get the velocity of the motor using an encoder. (See pictures they should explain better than I could). Plug that number into the process variable and see if it works. I'm going to increase the refresh rate to get a more accurate reading.
Does the "50" in Capture1.PNG mean 50 milliseconds? If so you are copying CurrentRotations into PreviousRotations every 50ms, which is 0.05 seconds not 0.5 seconds (as stated in Capture.PNG).

Can't you just use a feedback node to compare CurrentRotations to the previous value?

Reply With Quote
 


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 22:09.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi