Trigger conditions

Similar Questions

• Save the data before and after the occurrence of a Trigger Condition.

  Hello

  I am worrking on an application that acquires data from 64 channels and performs many analyses.

  Necessary to implement something is recording the data in the event of alarm condition.

  I've implemented datalogging in many previous applications, but this one is difficult.

  I need to save data for a few seconds before and a few seconds after the alarm has occurred in a single file.

  I thought constantly write data to a file PDM and at the same time deleting the old data, until the alarm trigger occurs.

  but I was not able to do, since I have no blocks to remove data from a PDM file.

  I'm looking for the ideal approach to this recording.

  Any help will be appreciated.

  What I have to do this in the past, use of a queue with loss as a circular buffer.  When you get the relaxation, dump you the data in the queue to your file and then save however many data you want after the outbreak.

  For the purposes of the memory allocation, do not use the queue to rinse.  Use rather a Dequeue element inside a conditional FOR loop with a 0 timeout (reading the queue stops when you have a timeout or you read X samples).

• How to read a waveform beginning after trigger conditional

  Hi all

  I need to communicate with the PXI-6541 card with three sons.

  The installation is as follows,

  The first line is the trigger line. I need to wait until they get front down.

  The second line is the active signal line which is the card output line. I need to make this high with a certain delay line when I get the trigger.

  The third line is the row of data that I need to acquire by waveform playback.

  The problem is that when when trigger strikes, it begins to acquire waveform data, I need to filter later because valid data, it is only when the active signal line is high.

  So I want to get rid of data filtering.

  When trigger hits, data acquisition must wait an active signal to go high. Once he should start the acquisition.

  Thanks in advance...

  KAMRAN

  KAMIJI,

  Unfortunately, you will not be able to run different generation and acquisition to two clock frequencies without using an external clock any. If you look at the help of HSDIO Clock Sources summary , you will see that there is only one clock available onboard. If you need to acquire half of the rate, you will need to provide your own clock that runs at this rate. Now, you could take the clock generation and export this clock CLK ON DDC CLK or terminal TO terminal, and then use some external circuits divide the clock frequency in half and then import the clock signal in the STROBE line.

  Another option is to use a data line, and simply write a 1010101010 model. This would actually give you a clock signal which was half the rate of your generation on a row of data session and you could then this wire channel to the CLK or STROBE line and use it as a clock. It would take just allows you to use a channel more digital output.

  I would like to know if you have any questions about my suggestions. Thank you!

• Trigger condition

  Hi all

  I need to create a trigger on the table that should make the rest of things.

  I have a DEMO table with columns A and B

  If I insert in the DEMO, and IF column B is null then it must set the value of column A column B.

  For example:

  insert into demo (A) values ('1');

  then table should look as below.

  A AND B

  1 1

  Help, please

  Complete example:

  SQL > create table demo (varchar2 (10), b varchar2 (10))
  2.

  Table created.

  SQL > create trigger demo_ins before insert on demo
  2 for each line
  3. start
  4: new.b: = nvl (:new.b,:new.a);
  5 end;
  6.

  Trigger created.

  SQL > insert into demo (a) values ('1');

  1 line of creation.

  SQL > select * from demo;
  A          B
  ---------- ----------
  1          1

  1 selected line.

• Manipulate the values of the variables to trigger conditional comments

  7.01.237 on Win 7 Pro PC work.

  Try to implement the following:

  3 responses to survey on a single slide type (think likert with a scale of 1 to 10)

  At the end of each of the three questions, select a "submit" button, and give your comments, based on a predetermined for possible values range (between 3 and 30)

  Tried setting up of three variables (Q1, Q2, and Q3) and seen the answer buttons to assign a value of 1 to 10 for each variable, then have the total submission button of the Q1, Q2 and Q3 values:

  

  and then display the appropriate text based on the number:

  

  no luck. Tried using the action of the increment to add to the overall value of Total_Q, then perform the masking based on the new value, not going either.

  Cannot use "a part of the quiz" because it may in fact be a quiz marked.

  Any ideas? I think that I'm not seeing the forest for the trees at this stage.

  Justenuf

  Try to follow the variables in a text container, do not know how you fill at all. Likert questions does not normally give rise to a score. Once, I wrote a blog about the use of multiple CHOICE for obtaining scores for a type of Likert question:

  http://blog.lilybiri.com/graded-survey

• Generate tension with a trigger set

  Hello world

  I want to ask a general question on the data generation process.

  I used "DAQmx start digital dashboard" to set up the task to start generating power on a front descended from a digital signal in my application.  My trigger is a train of pulses with a trigger freqeuncy 10 Hz. The build process stops on the front? Or it's just efficient when the first impulse appears and then the signal is generated constantly?

  Thank you!

  haiyueli,

  With a trigger DAQmx start Digital Edge, you will begin your generation when the trigger condition is met (in the case of the falling edge). It will not stop on the front. He will continue to run until it stops in the task, either you stop or a finished generation.

  What you reference looks more like a break (example).

• Simple trigger and alarm Question

  Thanks in advance for your help.

  My situation:

  I have the measurement computing USB DAQ with Labview 8.6 1208FS (ULx using). Am I voltage to a load cell measurement and the need to put in place a range of alarm

  • Load cell by smallload and ramps then begins up to about 15 lbs
  • I would like a continuous display of the data on the chart
  • I need to know if the load went down 15.1 14.9 or overwhelmed below (via two separate front led remains lit if the charge was never out of reach)

  My understanding is that I need some kind of trigger to make the alarm go off like the ramps of load cell up to past 14.9 lbs.

  Phil,

  Given that in a single iteration is reading your data acquisition (read data) an array of values or a waveform, all arithmatic operation will be done on all these values and thus the output of a table or values. In your case you are looking for the trigger condition so I've been chnge the data in table 1 d (easier to treat) and look at the max value and then compare with the threshold so the value out would be an element and not the table of elements.

  flipphil wrote:

  Thank you odessy27,

  I want to be constantly looking at my input voltage and switch to a mode 'on', he spent the trigger threshold.

  • Always begin near 0v and ramp up about 7v comments
  • Once it exceeds a certain trigger level, say 6.95v, I want mainly to 'start' of the program
  • At this point, the VI needed permanently watch entry and turns on an LED if the voltage is less than 6.9v or superior 7.1v.

  The conditions you mentioned can be achieved with the help of another structure within the existing case. Try it and let me know if you find it difficult to implement.

  Nilesh-

• Rule of trigger metadata custom in conservation management

  Hi gurus,
  I am new to Oracle UCM and URM. I was able to configure the retention to the server management but had two questions to use.
  I'm a couple of custom metadata where in I would add that, as part of the trigger condition.
  Say, for example, I had a custom field called ProjectFinishedDate. I want to write a trigger using this field.
  Anyone of you could help me get this custom within the scope field registration Date or pointers how to achieve this goal.
  Also at my disposal rule I would do the same. Any documentation or pointers or measures to implement what would be useful
  Thank you very much

  Here is some info on the creation of custom triggers:

  http://docs.Oracle.com/CD/E21764_01/doc.1111/e10640/c11_triggers.htm#i2985600

  This is the main area information for provisions:
  http://docs.Oracle.com/CD/E21764_01/doc.1111/e10640/c14_disp_instr.htm#g1433476

  and, more specifically, creating provisions:
  http://docs.Oracle.com/CD/E21764_01/doc.1111/e10640/c14_disp_instr.htm#i1081409

  I think that the docs are very good and have well trained procedures step by step, but do not hesitate to post if you are having problems!

  Thank you
  -ryan

  Ryan Sullivan | ECMconsultant
  http://www.ecmconsultant.NET/

• If so many conditions, including the next button click

  I just want to use Javascript (generator of action a fits on several "trigger" conditions).  As if previous/next statements I used just .rawvalues of the radio buttons and checkboxes.  Now, I want the event to occur (navigation of page x) when the user clicks on the next button AND a value of box 1.

  I don't know & & to join conditions, I do not know how to code in a rawvalue for an OK button.

  Is there a clean way to do this?  I don't want a dozen becomes visible and Ok buttons occupying the space given to a value of the check box. This seems a bit awkward.  I'd appreciate any help!

  Hello

  Buttons do not hold the values - you can't assign a value to a button.

  Normally, you put a script on its Click event, solutions for you would be

  • have a hidden field or a formVariable) store if a click has occurred.
  • change an attribute of the button (such as the fillColor) when clicked and have then other scripts look for that. A click event of button change fillColor does not calculate the events of shooting, so if you want a script on the calculation event to run in response to a change in the fillColor, put a

  TextField1.execCalculate (); at the end of the script.

  Here is an example:

  ///////////////////////////////////////////////////////////////////////////////

  Form1. #subform [0]. Button1::click - (FormCalc, client)

  $.fillColor = "255,255,255" //button click changes its own fillColor

  TextField1.execCalculate (//then) fires the script below

  /////////////////////////////////////////////////////////////////////////////

  Form1. #subform [0]. TextField1::calculate - (FormCalc, client)

  If (Button1.fillColor == "255,255,255") then //checks button fillColor

  $ = "yes" something //does

  on the other

  $ = "no" //or did something

  endif

  /////////////////////////////////////////////////////////////////////////////

  I hope this helps!

  Stephen

• Stimulus profile stops logging immediately (custom steps)

  Greeting together again! I use the 2012 here all versions (VS TS, LV and tiara), and I also use for TS VS Custom steps. I have a TS main sequence that does all the work of configuration and custom installation via subsequences and steps VS. The only thing I use the profile of Stimulus for connects at this point, and for some reason any resultant TDMS file holds only six data points (record at 100 Hz). It seems that it starts and stops immediately, and I can't understand why.

  The only steps I have in the profile of stimulus steps Start Logging and group channels. There is no step, newspaper stop, so logging should not stop until the TS of the sequences of the project undeplous, as far as I understand it. Triggered trigger Condition logging is set to none, and file segmentation is set to do not Segment.

  Anyone can shed light on what is happening here?

  If I understand correctly, your profile of Stimulus stops almost immediately, because it is call a step to start recording. After that, the profile is done. Is this correct?

• How to read 2 simultaneous channels with Agilent 53230

  Hi, first time done Labview programming so I'm completely new to this. My task is to read the frequency 2 channels (2 sources) at the same time and compare the difference between them (as appropriate).

  So I used the examples and Agilent pilots to get something that gives me the frequency of channel 1 or 2 depending on the choice of the user. But how do readings of both at the same time? Sorry if there is an obvious solution, but I can't seem to get it haha.

  Thanks in advance for any help!

  User manual confirms that you can at the same time, you can make a measurement frequency if it's all good.

  Meter except for the frequency rate and timing channels

  the interim measures are separated and can be configured independently.

  Measures on the channels do not occur at the same time, however. Switching

  between channels keeps the channel configuration, but ends the current

  measure. The newly selected channel is reset and measures

  start when the programmed trigger conditions are met.

• Everyone used Tektronix TDS7704B Digital Phosphor Oscilloscope! URGENT help!

  Hi I use scope TDS7704B, communicate via GPIB.

  My only requirement is to set the trigger parameters in the scope & detect a trigger based on the amplitude of the signal available to track the scope 1.

  Now the problem is I did a code that works fine most of the time, but randomly problem giving appropriate results. I can download the VI is necessary.

  Hi guys,.

  Thanks for the help. Well I already use the same drivers you suggested.

  I enclose you attached my VI. Can you please take a look at the same [TDS7704B.vi] & suggest me if I am missing any stage of configuration or I do something wrong in this.

  All I have to do is check that when the input signal which is connected to my channel 1 go below a particular level. Normally, it must be above 1.5 Volts. In some special conditions that the input signal becomes less than 400 mV. Now, there are a lot of conditions of entry which are varied (automatically & sequentially) for whom this signal I need to capture changes its State from 1.5 Volts to< 400="" mv.="" i="" need="" to="" capture="" that="">

  Now to do this, I'll put a condition of Tigger timeout in the Oscilloscope (TDS7704B). Definition of the level like 450 mV & timer 1 dry, so that any time the input signal goes below this level of 450 mV to 1 dry, this should give a trigger.

  Problem starts here, sometimes the same works of logic very well. Sometimes it starts giving error IE even when the input signal level is 1.5 Volts it gives a trigger & a few such mistakes.

  Are there delays that must be used?   Infact I had already tried giving the delay (1 sec) after initialize and/or after setting the trigger conditions. But

  Are there any specific conditions that must be addressed, that I'm missing?

  Is there a any sequence error (sequencing of VI all in configutring the scope condition & trigger) I do?

• circular buffer USB

  Hello

  I wonder if it's possible a streaming of data in a memory connected to the port USB 9063 cRIO.

  My application is currently broadcasting data in a circular buffer implemented in the host Pc, using network flow. I need data from 24 channels sampled at 250 Hz for half an hour. This because sometimes the trigger condition is given a web service that is updated every 20 minutes giving the timestamp of the event. So, I use the timestamp to search for data in the buffer and remove it from there.

  This can be done by 9063. I withdraw my request for a host Pc and use the USB memory. Is this possible? I'm looking for an example, but it seems that there are no examples on the web.

  KR

  Davide

  You don't need to remove anything.  Say you name the files "Folder 1" and "file 2"(très imaginatif, je sais...). "»  I would write a sub - VI, perhaps called "Open Double Buffer" that:

  1. Opens the specified file (file 1 or 2 file - you need to keep track of who), using 'Open or create' so it does not matter whether the file exists or not.
  2. File Position value 0.  This effectively "deletes" all the data already contained in the selected file, combining the steps remove old and new of the Open.
  3. Start saving until it's time to buffers to Exchange again.  Close the file and quit.  The appellant then rocker pads and we call again (or you could do this with a reentrant call...

  Bob Schor

• People with disabilities at the request always the task runs

  Hello

  I have a server that is running server 2008 R2.

  I have a scheduled task updates to run at 05:00. Yesterday, around 15:00 I disabled task. At 05:00 this morning, he ran in all cases.

  I checked the logs, and it recorded that I have permanently disabled the task when I thought I did, and when I arrived this morning, he said still "disabled" under the State. However, the logs show she began at 05:00 "by reason of a time trigger condition".

  How does this happen, and how can I solve this problem? Any help would be appreciated.

  Good, well annoying to turn back time.

  Apparently, one of my colleagues went after I had left and activated the task. Then they went ahead came today and it disabled later.

  So, I guess my question is resolved.

  Yet, I would suggest to Microsoft that they make a little more explicit in the newspapers.

  When a task is disabled, the event log contains the category of the task "off task". Pretty simple. But, when a task is reactivated, the task category is listed as "Job registration update". Not so simple.

• Triggered recording

  Hey everybody,

  I have a particular problem regarding the logging of data after a certain trigger condition has been met.

  My task is to save some data based on a particular trigger condition, data to be connected must be previous data (e.g. 1 sec prior) and the entire procedure (for example, 1 second after) the trigger point.

  So far, I scoured the forums and my current VI is based on the solution listed here: http://forums.ni.com/t5/LabVIEW/Log-data-before-and-after-occurance-of-a-Trigger-Condition/m-p/32095...

  The solution above uses the 'tail' function, and I'm not sure if I am using it correctly.

  My problem is that I can indeed save data when the trigger is reached, but I'm not sure how to continue this record for a certain period of time (e.g. 1 second) after the occurrence of the trigger.

  I would be very grateful if someone could provide assistance. I have provided a copy of my VI developed as a reference

  Just better to avoid the evil dynamic data in LabVIEW!

  Here I show you one possible way to save the three data blocks. Note that this solution could create overlapping when it follows the trigger conditions appear. But you can improve the example more far. I also created a Subvi for backup, more space this way (Save_data.vi) of the data...

  Subvi:

  

  Loop of consumer: