LMS 3.2 real time graphs

Hi Guys,
Can somebody tell me how to set up the following in LMS 3.2 running the latest version of various modules like RME, CS etc.
1. Real time graphs. If I am monitoring 100 switches in LMS, to be able to display reachability status of 100 switches in a graph (say refresh interval of 5 mins)
2. When a switch goes down, to generate an email.
TIA

You can't view syslogs in real-time through LMS. You can run reports within RME to view them once they are stored in the RME database. This is done under RME > Reports > Report Generator.
LMS is not a general purpose trap receiver. The DFM application does receive and process SOME traps. Instead of traps, DFM primarily relies on polling to build its fault events for devices. These can be viewed in real time under DFM > Alerts and Activities > Alerts and Activities.

Similar Messages

Creating a real-time graph

I'm starting out by collecting data from lab equipment that gives me intensity per wavelength. There are 3648 data points that make up the wavelength range. I know how to make a graph of Intensity on the Y axis and wavelength on the X axis. What I need to do is isolate one wavelength data point and graph it's change in intensity over time. I'm using the Extract Portion of Signal VI to isolate the correct wavelength and its corresponding intesity. What I need to do now is graph the isolated intensity values over time.
I've tried showing this using a Chart VI and selecting Strip Chart in the Update Mode, but what keeps happening is the chart shows intensity on the Y axis and data points on the X axis. I would like the chart to update live and show time on the X axis. What am I doing wrong?

Trying to understand the problem... You have either a 2D array with wavelength values in one column and a second column with intensity (amplitude, absorbance, transmittance,...) values. Or, alternatively you have two 1D arrays containing respectively the wavelength and the intensities.
You know how to plot intensity against wavelength.
Your measurements are reproduced at various times, generating additionnal colums of amplitude data. You can plot these data on the same graph, generating a series of stacked plots.
And you want to select a given wavelength, retrieve and plot the intensities as a function of time (or measurement index).
If this is correct, could you give us a sample of your data ?
Attached is an example, where a cursor is used to select a specific wavelength on the I = f(Lambda,t) graph, before plotting I = f(t) for this specific lambda.
Message Edité par chilly charly le 09-15-2008 06:16 PM
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...
Attachments:
Select wavelength.png ‏46 KB
Select wavelength.vi.zip ‏39 KB

Details on real time graphing

Hi,
According to my current requirement I need to create graphs where I read some part of input from CSV & the rest part of the input is calculated by using different Formulae.Can i get such kind of graph using Flex Professional.Can any one suggest better ways to achieve this.I request to forward any examples of this type.
Regards
Kalavati Singh
[email protected]

Hi Claptrap,
I am not sure what exactly is your problem , but if it is just about clearing the chart after each run, you can righclick the graph when its blank and in data operation set it as default value. Then in the block diagram use an invoke node with reinitialize all to default property befor starting the while loop. Check the attached VI for more details. This will make the graph start from 0 evrytime you run the VI.
Regards,
Nitzz
(Give kudos to good Answers and Mark it as a Solution if your problem is Solved)
Attachments:
test panel (1).vi ‏99 KB

ASDM 7.3(1) real time graphs broken/ASDM stops responding

I've recently upgraded ASDM from 7.2(1) to 7.3(1) on my 5585-X firewalls. After several minutes, the continuity in the graphs are broken, and ASDM stops responding. If I attempt to close it, it takes several minutes before it finally closes. I've since backed out to 7.2(2), and it works fine. Here is the screen capture of what is happening. This occurs on several Java releases.

If you browse to the ASA https://<ASA IP>:443 (or whichever port you have configured for it), and then run the ASDM directly from the ASA are you able to see the graphs then?
If so I would suggest removing the ASDM launcher you have installed on your PC and then install a fresh copy from your ASA.
Please remember to select a correct answer and rate helpful posts

Plotting a graph in real-time without reading from a file

Hello there.
I am trying to plot a graph. I have succeeded in plotting the graph by first writing the data to a text file (.TXT), then reading from that text file.
However, I feel this method will take up a lot of memory. Thus, I was wondering whether it is possible to plot the graph directly without first writing it to a text file.
Thanks a million.

You can use a while loop with a shift register, inside the while loop, put a case structure, and in it, your data aquisition vi. When you get data, use the shift register to append data to the array, using build array (the shift register will go in as an array, and data as an element) just execute the appending state when data is present, and you'll have a real time graph.
Hope this helps

Real time labels on x-axis

Hi all
I thought I had cracked the business of putting realtime labels on the
x-axis of Labview charts but today I found that the way I had done it
was failing at any times between midnight and 01:00.
In the past I have used a property node for my chart or graph (not sure
which) and initialised it with the current PC time. I'd set the x-axis
format to be time & date. This seemed to work but I had noticed that,
when daylight saving was active, that Labview would try to correct for
this. (I'm GMT, London so occasionally go GMT +1). So I'd added a
correction to subtract the "error". This works fine apart from between
midnight and 01:00. At these times my correction results in a negative
number which Labview cannot interpret as a time (not surprised by this)
and so it plots Neg on the x-axis until the time changes to past
00:59:59. The PC time zone setting also causes a problem that I hadn't
appreciated until I started looking at this.
In the Labview examples for real time graph axis, NI have used an x-axis
formatted decimal and then selected realtime from the radio boxes below.
This works OK, and is immune to DST and time zone offsets but doesn't
look like a proper time at times between midnight and 01:00.
So the only way I can get a nice looking display and for it not to
misbehave at times between midnight and 01:00 is to set the PC system
clock for GMT:Casablanca,Monrovia. This time zone has no offset or
daylight saving activity.
Have I missed something or is this way harder than it should be?
Many thanks in advance for any help or advice.
Regards
Bill
mailto:[email protected]

Hi
Sorry, was posting from a newsgroup didn't realise this was web based too.
In my example
timeongrapghs+dst correction.vi
where the chart x-axis is formatted to be date and time, for some reason Labview adds an offset according to the time zone and/or
whether or not daylight saving is active. I had corrected this offset by using a simple subtraction but at midnight the hour value is zero so, as I said in my initial post, Labview does not recognise -1 as a time and so causes the x-axis labels to be in error (they actually say Neg). My example shows this. If you set your PC clock time to e.g. 00:12 and your PC's time zone to GMT, London. If you change the PC date to be in or out of daylight saving (Apr-Oct daylight saving is active) you will see the problem come and go.
So I looked at the Labview example and they use the decimal formatted x-axis with realtime selected from the radio buttons
underneath. I tried this approach on my example (timeongrapghs decimal x axis correction.vi) and this does not seem to suffer from an offset introduced from the time zone and/or whether daylight saving is active but at midnight the time displayed on the x-axis reads without zeros, so 00:14:45 reads 14:45 - misleading.
I found that setting your PC clock to GMT:Casablanca,Monrovia results in my example behaving perfectly around the midnight time. This time zone has no offset or daylight saving activity.
timeongrapghs NEEDS GMT CASA.vi
Finally I looked at the example you linked too and although that works (but I don't understand it ), I want my display to fill from the far left to the far right, and once the x-axis is full, for the display to scroll across from right to left. If you look at my examples, they do this, although I noticed that using them in LV 7 (they were written in 6i) automatically seems to switch the autoscale x-axis on for the chart - you need to switch autoscaled x-axis off to see how I want my charts to appear. The example you linked doesn't do this, and turning off the autoscaling seems to stop the data from being displayed. Can you change the example you linked so that the chart behaves like my examples but without the time zone/DST problem - if so can you make it so I can plot more than one data set on the y-axis (same time resolution of data)?
Thanks for helping
Bill
Attachments:
timeongrapghs NEEDS GMT CASA.vi ‏45 KB
timeongrapghs+dst correction.vi ‏42 KB
timeongrapghs decimal x axis correction.vi ‏41 KB

How to read updated data from a real-time generated file?

I have a question:
I want to read the 10 mostly updated data from a real time generated data file. The data in this file is accumulated. how can i read mostly recently data to an applet? and further to using this data to draw a real-time graph? pls help
kelvin t.l. tse

Hi,
I think there is no "typical" way. You will have to define a convention on how the new data are stored into the file, so as to know how to accessthem. If new data are simply put at theend of your file, you may use a RandomAccessFile to read only those lines that interest you (the 1 final lines).Otherwise, you should at least know how the data file is written.
You can know if thedata file has been modified with the File.lastModified() method. This retrurns a long value corresponding to the date and hour the file was last modified. Store that value ito you appl. and perdiodically (use a Thread), compare that value with the value returned by lastModief(). If both value are NOt equal, then the file has been updated
it's all a question of knowing how the data are stored into the datafie generated.
Be also aware that you will probably have problem when your java appl. tries to read the file at the same time it is updated by the other application. I guess when theother application writes data into the file, you will not be able to read it. So, use try{} catch statements and first check to see if you can read the file with File. canRead(). If not, simply delay the reading process by asking a Thread.yield() or Thread.delay (1000)...
vincent

I would like to see the time in a waveform graph (real-time)

i need the x-axis of the waveform graph to show real time (from the computer clock). I have made a program with all the example. He read and log data when the chosen time has elapsed. the program work's well...but i dont't know why the x-axis blink every time he draw a point
i can see two x-axis in the same time.
i give you a picture of one of a part of my program, i hope someone can help me
Attachments:
my_software.JPG ‏128 KB

Hi,
I tried to reproduce what you were getting by building a simple VI but I havent had much luck (I have attached the VI).
Could you post your code so that I can take a look at it?
Feroz P
National Instruments
Attachments:
Graph.vi ‏39 KB

How to plot bar graph in the real time?

Hi guys
I have n row and 3 column array, n will vary according the time, for example t=10ms, n=1;t=20ms, n=2;..., I would like to display all the data of the array in the bar graph in real time. I tryied with example "array to bar graph demo.vi" but very time, only one row was displayed.
Could anybody help me?
Many thanks.
Sorry I don't know how to capture the picture from VI, so I pasted it diagram to word document.
Attachments:
question.doc ‏240 KB

Where did you get this example. I can't find it listed in the current shipping examples.
Also, posting a small image of a section of a block diagram is not much to work with. You are using local variables and a sequence structure. Neither one is a good sign. If you would simply post the actual VI (and any subVIs), it would be much easier to see what you mean.

How to display on the graph three or more waveforms where time scale is not an index of array but a real time

How to display on the graph three or more waveforms where time scale is not an index of array but a real time:
I measure three voltages Va, Vb, and Vc on my Test stands every 3sec. So I’m building four arrays (Va, Vb, Vc, Time) and combine all in one.
Time
Va
Vb
Vc
0
5
3.5
2.8
3
4.9
3.6
2.9
6
4.8
3.8
2.1
Now I need to show on the graph in which scale X is “Voltage” and scale Y is “Time”.
How can I do it?
Thanks a lot,
Boris

Hi, thanks all your reply.
You may find "points_to_bar_graph.vi" from this website, I find it by this way.
I will ask a stupid question: I don't have any photo processing software, how can I save the vi into a picture format?
So here I just paste it into word document.
Attachments:
question.doc ‏520 KB
points_to_bar_graph.vi ‏62 KB

Trouble getting a subvi to update a graph in real-time on the front panel

Hi All,
First post here, so play nice =). I am trying to update a graph on the front panel from within one of my subvis, however it does not update it in real-time. It will only show the completed graph after the subvi finishes running. I have tried to use references/property nodes and I have also tried using my chart as a global variable, but neither of those methods have worked (I am probably doing it wrong). Can anyone provide a detailed walk-through of how to do this using either one of those methods? Or perhaps even a different method?

ModusPwnens wrote:
This is how you do it, right?:
Try this for a quick demo of the reference method:
Create a VI as shown in the image.
Select only the while loop and do "edit...create subVI" (as shown). (you will get a subVI that contains the needed connectors and is alread wired to the reference)
Run the main VI, and the chart will update every 200ms.
Note that this is only a draft and many things are missing. (For example, the subVI cannot be stopped at the moment. Also, you want a graph, and not a chart.)
LabVIEW Champion . Do more with less code and in less time .
Attachments:
updateViaSub.PNG ‏32 KB

Waveform graph x-axis into real time recording

Hey there,
I have acquired voltage off a LVDT through the DAQ assistant and connected it to a waveform graph. However, the x-axis says its 'Time' but its got the white line running across it even though no time has elapsed and the time itself has funny units to it. What I need on the x-axis is real time so that I can see the line register from left to write as time passes by. I have tried a few things like connecting the DAQ to a chart graph but it doesnt have the log graph which I need. I have also fiddled with the XY graph by connecting the DAQ assistant into the 'Y Input' but I am not sure how to input time into the x input.
If someone could help me with this problem, it would be much appreciated.
Thanks,
Gurung

Hi Gurung,
what do you expect here? Wire waveforms to a chart:
(DAQmxRead settings: n channels, n samples, 1D array of waveforms)
For learning the basics you should
- examine the examples coming with LabVIEW
- go through the Basics course on NI website
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

LMS 2.1 and nGenius Real-Time Monitor 1.4

Dear NetPros,
Is the LMS 2.1 and the nGenius Real-Time Monitor 1.4 can be installed on the same system?
Regards,
Steve

Yes, but not recommended. Keeping them on separate servers will be more beneficial.

2 real-time plots + curve fits on the same x-y graph

Hello all-
Per the title, I'm trying to plot two series, both in real time, plus curve fits for each series on the same x-y plot. Some background on the subject - this will be used to show the temperature distribution across a counter-flow heat exchanger. So the x-y plot will plot temperature vs. position for two different flow streams - a hot flow stream, and a cold flow stream. I would like to plot them both on the same graph so the temperature relationship between the two flows can be clearly seen. If I can plot 2 series with simple lines connecting the points that would be fine, but would prefer some smoothing on the line or using a curve fit if that is possible to do in real time.
A screen shot of my block diagram is linked below. As you can see, the diagram is symmetrical with the inputs from the cold flow being processed on the top, and the inputs from the thermocouples in the hot flow being processed at the bottom. I've got 2 issues:
1. Plotting 2 series on the same X-Y graph in real time. (I've done this before, but never in real time). Am I correct in assuming, if I append the array so it is a 3-D array (X, Y1, Y2), that I can plot both series on the same X-Y graph? The individual X-Y graphs are functional, but I would like to combine them.
2. I've circled a bundle output which outputs the X,Y values of a curve fit. The output here is a string (pink wire), so I cannot plot it on the X-Y graphs which are shown, due to it being 2 different data types. Is there any way to plot the curve fit on the same graph? Is LabVIEW capable of doing this in real time?
Thank you for any help... I realize that some of the answers here may be obvious, but visualizing what's going on in LabVIEW is a bit of a challenge for me, since I'm used to seing text-based code in VBA and MATLAB.
Attachments:
HX Block Diagram 2.jpg ‏302 KB

The output you have circled is a cluster of two 1D arrays, not a string.
XY graphs take a varirty of inputs (array of points, cluster of x and y arrays, complex arrays, etc.) but you cannot mix datatypes in a single graph. Since you are graphing arrays of points (a point is a cluster of an x and y scalar), you need to do the same for the data you circled. Simplest would probably be to just wrap an autoindexing for loop around the bundle function. See how far you get.
If you want detailed help, please attach your actual VI. We cannot debug a picture.
LabVIEW Champion . Do more with less code and in less time .

Real-time updates of an XY graph with a 2D array (x,y) inside a for-loop

Hi all,
I am new to this forum, and relatively new to LabView (I've used TestPoint in the past), and I have a question. I have implemented a for-loop to grab data from an LCR meter (via GPIB) which becomes the Y data. The X data is calculated and tunneled into the for loop (although varies with incrementing 'i'). Anyhow, I am trying to store all of the data and keep the user updated throughout the test by plotting the XY Graph each iteration. Right now, the XY Graph plots one point at a time, so somehow the data I am appending to the 2D array (x,y data) is getting overwritten each itteration. How can I make it so that each new point is added to the array, making it bigger so that the data will be saved and so that the user will be able to see all the data in real-time on the graph as the test in running?
Thanks
P.S. I would post a screenshot, but I'm not sure how to upload here.

Hey Mendeleev3104,
There is an attachment section at the bottom of the post when creating or editing a post. You might want to use that to attach a picture of your code.
None the less I will give a shot with some suggestions without viewing your code.
You should look into using shift registers along with the Insert Into Array.vi to build an array of numbers. A good source of information for shift registers can be found in the For Loop and While Loop Structures help.
Hopefully this helps!!
Aashish M
Applications Engineer
National Instruments
http://www.ni.com/support/

LMS 3.2 real time graphs

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