Help with reading information coming from a software into LabVIEW through Serial port

Hi,
I am new to LabVIEW and also an amateur in using RS232 for communication. I have this software that has these icons like speed increase/decrease, elevation up/down, start/stop. Now, when I click these buttons on the software, they perform the appropriate functions. For example, if I press start button, the signal must go through a serial COM port into LabVIEW to start the machine. How do I do that? How do I find what format the code word is when I press a button on the software? And how to decode the information to read whether the button pushed is start etc...? Any help would be appreciated.
V
I may not be perfect, but I'm all I got!

That information would be in the programming manual for the device you're controlling. Unless you have a device that has no documentation or you cannot get the documentation that's the first place you should look. If you cannot get the documentation at all then you've got some reverse-engineering to do. To do this you will either need a serial port sniffer (a hardware device), or you can try to use a software-based port capturing program. On Windows PortMon is the most prevalent. This will show you how the port was configured (baud rate, stop bits, etc). Warning: the information is technical.
As far as how to get it running in LabVIEW, you should take a look at the serial port communication examples that ship with LabVIEW. The most problems occur in figuring out how to (a) terminate a write command, and (b) determining when to stop reading. For (a) this is typically done by appending a carriage return or linefeed to the command. This is device dependent. For (b) this is usually done by the byte stream ending with a character like a linefeed. Again, this is device-dependent.
You may also want to peruse this KB article: Serial Instrument Control Tutorial. There are also lots of tutorial on the internet for basic tutorials on serial port communication.

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I see interfacing with the serial controllers as the biggest obstacle and although not directly related to LabVIEW programming, I'm hoping someone here can give me some advice or resources on how best to do so now days.
My first thought is to write a program with VB or C++ to act as a terminal and write the data to a text file for LabVIEW to poll. Aside from using Telix decades ago to work with BBSes, my only other serial experience consists of interfacing with a Kiethly multimeter using a C++ program.
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Thanks Dennis.
I spoke with Envirotronics and they do not provide the driver for the System Plus controller any longer since there were issues with changing hardware and software. Their IT department may be able to put something together for me.
Using USB->RS232 connections would be nice given the abundant number of USB ports available on modern PCs.
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Need help with reading RSS feed from SSIS

Hi all,
I am trying to read RSS feed from SSIS by using the Script Component. So far I am able to read some information from the RSS feed from the following items included in the code, Title, PublishDate, LastUpdateTime, Id and Summary.
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//Output0Buffer.Description = item.Content;
//Output0Buffer.Category = item.Categories;
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Error 1 Cannot implicitly convert type 'System.ServiceModel.Syndication.SyndicationContent' to 'string'
And the same error for the other three variables.
I am using HTTP Connection manager to read the xml link.
I tried to google around for some help but I could not find more information about the datatype.
I appreciate any help if someone can point me to the right solution for reading RSS feed from SSIS.
Code:
/* Microsoft SQL Server Integration Services Script Component
* Write scripts using Microsoft Visual C# 2008.
* ScriptMain is the entry point class of the script.*/
using System;
using System.Data;
using Microsoft.SqlServer.Dts.Pipeline.Wrapper;
using Microsoft.SqlServer.Dts.Runtime.Wrapper;
using System.ServiceModel.Syndication;
using System.Xml;
using System.Text;
[Microsoft.SqlServer.Dts.Pipeline.SSISScriptComponentEntryPointAttribute]
public class ScriptMain : UserComponent
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private XmlReader reader = null;
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base.PreExecute();
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Thanks in return.

You need to make it running outside SSIS 1st. I just do not see why you need to publish it here at the moment.
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My temperature register start adress is 100 Hex (256 dec) I read from Register with Function code 03.
This register have values from 0-255 witch mean in labview for me as unsigned byte U8
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I receive the same value if I use Modscan32
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I have even bought DSC module, but I can’t write to either com ports or Modbus testers..
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Start address for for PIR detectors is 40017.1 (FC03) and for writing bits for on of to light and heatsystem is 404097.1 (FC16)
I would be very happy for any idea that can give me some positive results… Look at the attached pdf file.
Thanks.. and very best regards from
Benjii…
Attachments:
G3800x016_02-2005_eng.pdf ‏70 KB

Hi... and thanks for your answer..
Yes, I have downloaded the NI Modbus drivers.. I have downloaded that one + a lot of other things about Modbus..
I have also tried communication between lokout and labview true null-modem cable.. and it works..
I have tried several Modbus examples and I communicate with most of them with null-modem cable.
I write to the right registers as well, cause I use Modbus scanner to read the information..
I have used the same settings for serial communication as my Master device use, bust still I can't get any response..
There was an error message in one of my example from the Modbus INIT module.. Maybe I should try to set up a new connection using VISA ??
Maybe the problem is to INIT my serial port? I have tried restarting my computer after closing my system.. But still, I have the same problem..
I hope you can give me any idea...
Thanks again.. by the way.. is it possible to write and read directly to serial port with the DSC module?? If so.. how??
Very best regards..
Benjii..

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Should I just read the source form's recordset using the Currentrecord value somehow? I could use some direction on that.
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It's generally considered good forum etiquette to post back a description of the solution which you've reached.
The normal control for a multi-valued field is a combo box rather than a text box, but unless it is necessary for you to use a multi-valued field, i.e. your database is interfacing with SharePoint in the very limited context in which this feature is necessary,
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If you have difficulty opening the link copy its text (NB, not the link location) and paste it into your browser's address bar.
Ken Sheridan, Stafford, England

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http://localhost:8080/servlet/Option1Servlet?Firstname=nnnnnnnnn&Lastname=nn&Sta
ffstudentid=99&Position=mm&Email=mm
recieved info from servlet about ot process!
java.io.StreamCorruptedException: Caught EOFException while reading the stream h
eader
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:845
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:168)
at Option1.actionPerformed(Option1.java:252)
at java.awt.Button.processActionEvent(Button.java:329)
at java.awt.Button.processEvent(Button.java:302)
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at java.awt.Component.dispatchEvent(Component.java:2497)
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ad.java:98)
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fahad

can some one help me plz, its urgent, i get the error at this point in my code what am i doing wrong here.
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LV acquire the print information from the embed board with Linux system through serial port

I want to acquire the print information by LV from the embed board with Linux system through serial port, like the window hyperterminal tool?
I try to use VISA serial config function to achieve it ,but lost and prompt that is error like attachment.
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Back up all data.
Triple-click the line of text below to select it, the copy the selected text to the Clipboard (command-C):
/Library/Internet Plug-ins
In the Finder, select
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The "Silverlight" web plugin distributed by Microsoft can also interfere with PDF display in Safari, so you may need to remove it as well, if it's present.
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~/Library/Internet Plug-ins
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How to store the data coming from network analyser into a text or excel file

Hii everyone
I'm using Agilent 8719ET network analyser and wish to store the data coming from netowrk analyser into a text file/ excel file.
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Attached is the vi for kind consideration...
Looking for help
Regards
Rohit
Attachments:
Agilent 87XX Series Exceed Max Meas.vi ‏43 KB

First let me say that your code really looks pretty good. The data handling could be made more efficient by calculating the number of datapoints that are going to be in the completed dataset and preallocating the entire array -- but depending upon your answer to my questions, the logic in the lower shift register may be going away - so we won't worry about that right now.
The thing I need to know before addressing the data storage question is: Each time you call "Collect and Display Data.vi", how many element are in the array? Are you reading single data points, or a group of data? (BTW: if the answer to that question is obvious based on the way the other VIs are setup, I don't have the drivers so I can't tell what the setup values are.) Second, how fast does the loop iterate? Are we talking msec per loop?, seconds? fortnights?
The issues here are two-fold: how much data? and how fast is it coming? The answer to these will tell you how to save the data.
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

Can I move ninety video files with their keyword tags from 'My Catalogue' into another catalogue?

Can I move ninety video files with their keyword tags from 'My Catalogue' into a another catalogue?

Nyinyikay a écrit:
Can I move ninety video files with their keyword tags from 'My Catalogue' into a another catalogue?
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Link DN with information coming from active directory

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Forget about application dial rules mate, if you do desk phone control using Jabber, and you dial a person using that person's telephone attribute in AD, just put a translation pattern in place. That should work.
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Help with restoring Address Book from Time Machine

Problem: I really, really need to retrieve someone's number. I know it'll be in an old version of my Address Book. I can see when I open time Machine that my address book is backed up, but no matter the date I go to, it says the Address Book was last modified in 2012! I know for a fact I've updated (and backed up) the Address Book many times since then.
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M

Hello mb9236,
Thank you for the details of the issue you are experiencing with restoring a contact from Time Machine.
It sounds like you are trying to restore the Address Book application. The Address Book application is just the application and does not include the content in Address Book.
Instead, you will want to open Address Book and then launch Time Machine and restore your contacts from there. Use the steps below to restore your contacts form a previous date (in step one instead of opening Mail or Finder, be sure you have Address Book open and in focus):
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OS X Lion: Restore items backed up with Time Machine
https://support.apple.com/kb/PH4256
Thank you for using Apple Support Communities.
Best,
Sheila M.

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I had Tiger on my Macbook then a mate lent me his OSx 10.5.6 installation disc. Big mistake!
I loaded this new OS on the Macbook but the iMail wouldn't work.
I then went back to my Apple-purchased 10.4.8 installation discs and tried to reload OSx 10.4.8, following the on-screen instructions for going back to 10.4 from 10.5.
Disc 1 of the 10.4.8 loaded fine but was then asked for disc 2 which I loaded. The Install Prog read and loaded from this second disc but the install failed with the error message: "There were errors installing the software, please try again".
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When I tried to do exactly what you said, I got the error message "Public can't be modified or deleted because it is required by Mac OS X. The only thing I could find in my old Username Public folder was Dropbox and seeing as I never really used this, not having the contents on my rebuilt Macbook isn't really a worry for me.
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FANTASTIC - my Desktop data returned and EVERYTHING SEEMS GREAT!!!
Just to be on the safe side, I ran REPAIR DISK PERMISSIONS on the parent 186.3 GB Toshiba disc on the left hand side of the Disk Utility and then rebooted again.
THANK YOU SO VERY, VERY MUCH!!! Phew!!!
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I'm running Mail version 3.6...

Help with finding address book from device manager on computer, Blackberry is dead

My pearl got wet the other day. I dried it out took it apart and a day later put it on. it worked for 10 mins. Now its dead. When the tech at At& t looked at my sim card said nothing was on it. I had synched the phone about 2 3 weeks ago, so figured i could get the info from there except cant find the file. have tried a few suggestions on here like searching for .ipd file but dont have any. Where would it synch too? If i cant find it? got a feeling the worst news i lost everything but hoping for a miracle.

Treasurercay25:
Oh, man. Heart goes out to you.
You wouldn't have any synced files from Outlook on the new hard drive since you never sync'd to it. Do you remember how you sync'd to the pc? As an ascii (text) file or what did you select when setting up your synchronization settings? You know, the screen where you selected Outlook on the old hard drive. Step 5 in this sample link
Lifted this from sdgardne in another thread:
If you don't want to shift PIM's, then you have an option to export, from your current PIM, into ASCII or CSV format...which can be imported via the RIM software into the BB. You won't get sync, but you'll at least get a 1-time import of your stuff. If you want to follow that path, then this KB applies:
KB04312 Create and synchronize with an ASCII export file
Let is know how you'd like to proceed. Cheers!
I'll have to think on this one, but try to get the date, range of dates, when you think you last sync'd with the pc.
You could then do a search for that file type within that date range.
Hang in there. . Other users may also have other ideas as well.
Message Edited by IrwinII on 08-06-2009 07:21 AM
Message Edited by IrwinII on 08-06-2009 07:46 AM
IrwinII
Please remember to "Accept as Solution" the post which solved your thread. If I or someone else have helped you, please tell us you "Like" what we had to say at the bottom right of the post.

Help with reading information coming from a software into LabVIEW through Serial port

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