You are not registered yet. Please click here to register!


 
 
plc storereviewsdownloads
This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc.
 
Try our online PLC Simulator- FREE.  Click here now to try it.

---------->>>>>Get FREE PLC Programming Tips

New Here? Please read this important info!!!


Go Back   PLCS.net - Interactive Q & A > PLCS.net - Interactive Q & A > LIVE PLC Questions And Answers

PLC training tools sale

Reply
 
Thread Tools Display Modes
Old December 15th, 2008, 07:04 PM   #1
nickromano07
Member
United States

nickromano07 is offline
 
Join Date: Jul 2008
Location: Tampa, FL
Posts: 23
Basic speed control with RSLOGIX 500

Hello all! Can anyone give me a basic run down on how to set up a simple speed control ladder program with RSLOGIX 500? I have exp. with this program and I have been using discrete commands for simple controls. I have a basic idea, I'm not starting from the bottom.
Here is what I have: Micrologix 1200 with 4channel combo modual ( 4-20ma/0-10v input&output) I want to control speed with an HMI touchscreen ( maple systems 5104T silver series plus) I have all the digital commands programmed already. I want to create a slide control with the HMI to control the speed of my drive ( Eaton SVT9000 ) Does anyone have the patients to help me construct this? As I said before, I am NOT totally new to this and ANY help would be really great! Thank you very much!
  Reply With Quote
Old December 15th, 2008, 07:17 PM   #2
widelto
Member
Colombia

widelto is offline
 
widelto's Avatar
 
Join Date: Jul 2005
Location: barranquilla
Posts: 1,684
Do not know about maple hmi nor about Eaton drive, but lets say that you have a 0-100 slide in your hmi, use a N file as your 0-100% speed info, then use a SCP instruction N file is the input ( not sure about ml1200 but it works with slc 5/05) then output from SCP instruction is moved to your analog board depending if your using 0-10 VDC or 4/20 mA as your output to control speed of your drive.
__________________
My two cents.
  Reply With Quote
Old December 15th, 2008, 07:26 PM   #3
nickromano07
Member
United States

nickromano07 is offline
 
Join Date: Jul 2008
Location: Tampa, FL
Posts: 23
thank you, I will try and work with that, I'll let you know what happens. Can you recomend a good text that covers these type of analog instructions for someone like me?
  Reply With Quote
Old December 15th, 2008, 07:44 PM   #4
nickromano07
Member
United States

nickromano07 is offline
 
Join Date: Jul 2008
Location: Tampa, FL
Posts: 23
WHAT instruction would I have the HMI write to? I have the scale with parameters set up, it is the only instruction on this rung, do I have the HMI write to a B3 file and move it to N file? Can I have the HMI write directly to the N file where the different values would corrospond right away?
  Reply With Quote
Old December 15th, 2008, 07:55 PM   #5
kolyur
Lifetime Supporting Member + Moderator
United States

kolyur is offline
 
kolyur's Avatar
 
Join Date: Oct 2004
Location: Wooster, Ohio
Posts: 1,098
You need to know the output address of your analog signal. This is a 16-bit word address located in the output data file and it depends on the slot where the analog card is installed. If it is in slot 2, for example, the address might be O:2.0. This will be the destination in your SCP instruction.

The slider control in your HMI should be set up to write to an internal word memory address in the PLC, like N7:0. This will be the source data in your SCP instruction. The other SCP parameters will depend on how you want the value scaled.
  Reply With Quote
Old December 16th, 2008, 09:13 PM   #6
nickromano07
Member
United States

nickromano07 is offline
 
Join Date: Jul 2008
Location: Tampa, FL
Posts: 23
Thank you, I have the SCP set up right, I will now try to set up the values coming from the HMI.
  Reply With Quote
Reply
Jump to Live PLC Question and Answer Forum

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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

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

Similar Topics
Thread Thread Starter Forum Replies Last Post
PID Control Action Mode in RSLOGIX 5000 plcnovel LIVE PLC Questions And Answers 7 January 19th, 2011 08:30 AM
Program Micrologix 1100 with RSLogix 500 Ver. 6.3 Lynx777 LIVE PLC Questions And Answers 15 August 6th, 2008 03:10 PM
Panelview Plus 1000 + SLC 500 Control adam.bridgman LIVE PLC Questions And Answers 3 July 15th, 2007 01:28 PM
RSLogix 500 warning Beryl LIVE PLC Questions And Answers 6 April 13th, 2004 02:53 PM
VFD speed control Alan Case LIVE PLC Questions And Answers 8 July 18th, 2002 03:09 PM


All times are GMT -5. The time now is 08:59 PM.


.