NEITHER the 6602 write and read frequency

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• error timeout on write and read VISA

  I'm having problems of error timeout with a VI who just writes and reads the necessary data and will be eventually added as a Subvi. Everything is set up the same as my camera. I tried to increase the timeout for the session, but it does not work and I don't know what else to try.

  Any help would be appreciated!

  The \r is the termination character (carriage return) and YOU set the constant/control channel for------display Codes. It is a right click option.

  The driver is located by help > find the instrument Drivers. The driver page main has links on what makes a driver is and how to use a.

  http://www.NI.com/downloads/instrument-drivers/

• Write and read files 8859_1 but miss char

  Hi all!
  I tried to write heart (♥) tank in a text file on Windows, but to re-read when the return was a question mark (?).
  
  I wrote and read with codes like:

  String iso = "8859_1";
  
  [...]
  BufferedWriter bufferedWriter = null;
  try {
       bufferedWriter = new BufferedWriter(
            new BufferedWriter(new OutputStreamWriter(new DataOutputStream(new FileOutputStream(file)), iso));
  } catch (FileNotFoundException e) {}
  
  [...]
  BufferedReader bufferedReader = null;
  try {
       bufferedReader = new BufferedReader(
            new BufferedReader(new InputStreamReader(new DataInputStream(new FileInputStream(file)), iso))
  } catch (FileNotFoundException e) {}

  What is wrong with him?
  
  I'm worried because I want to write the encrypted text in the future... and so I'm worried I may lose some data if encrypted text includes characters that are not written / read in the right track to be decripted!

  Patcha wrote:
  Hello.
  Sorry to get back to.
  I want just one last question (somewhat strange)...

  Is there a way to simulate a write and read entry and exit flows without actually writing a file?

  The javadocs are your friend, you know. If you check out the javadoc for InputStream for example:

  http://docs.Oracle.com/javase/7/docs/API/Java/IO/InputStream.html

  Check out the "direct known subclasses. I'm sure you're smart enough to not need more than information to determine what your options are. You just need to know where to get information!

  And of course, there is no one stopping you to create your own stream of input/output 'false' when there is no option :)

• How can I add a game action on an object that contains the first click and read reversed to this object even a second click action?

  How can I add a game action on an object that contains the first click and read reversed to this object even a second click action?

  First create a symbol of the object.

  Then add the code in the event click on this symbol as below:

  Insert the code for the mouse, click here

  var bReverse = (sym.getVariable ("reverseDir")! = undefined)? (sym.getVariable ("reverseDir")): true;

  sym.setVariable ("reverseDir", bReverse)

  {if (bReverse)}

  sym.playReverse ();

  }

  else {}

  SYM. Play();

  }

  HTH,

  Vivekuma

• Write and read data from the user's local file system

  Hello

  I write my first extension for dreamweaver. My extension should backup the data on the local file system of the user. I know that I can use DWfile.read () and DWfile.write () as described in Chapter 2 of the Dreamweaver API reference. I store the data using the XML format. What is the best way to read and parse the XML data in the file? What is the best way to write the XML data in the file?

  If you recommend one format other than XML, I'm open to suggestions. The data are only a few configuration information for the extension which should be persisted.

  Thank you

  mitzy_kitty

  How will the data be used? If it is used by JavaScript, use JSON format which includes js. If you use XML, then you will need to find an XML parser to read the data.

  Randy

• during the RAM Preview and reading frame counters

  I understand that I should be able to display the number
  of the Treaty currently framework during a RAM Preview
  in both the meter of timeline (in frame display mode) and in the info panel.
  This does not work for me, and I'd like to see if I'm missing something.

  This is the State of the counters with a current RAM Preview.
  The only images update count is at the bottom of the composition window,
  and it could not be visible during the processing of a RAM full screen preview.

  RAM PREVIEW CURRENT

  

  This is the status of the counters during the RAM Preview playback.
  Playback CTI is roughly 90 of 912 frame, but the counters at the same time the
  Chronology and the compose window are frozen at zero, while the Info Panel
  is frozen in the last number of the frame in the scenario (the last rendered image).

  
  

  READING OF THE CURRENT RAM

  

  During the reading of the space bar, only the counter the composition window displays
  the current frame.  The meter of the timeline is frozen in the frame number where
  the CTI was stationed during playback started (in this case, frame 0).
  The info panel displays only the playback framerate.

  READING OF THE STANDARD PREVIEW

  

  If I stop playing RAM Preview or standard using the space bar
  the meter of timeline updates to the frame of the CTI, but if playback resumes
  the frozen counter stays where ICT was parked at the resumption of play.
  I feel this behavior using frames, timecode, ft + frames and using
  "To present" the RAM previews.

  Please tell me I'm doing something wrong.

  > I can't seem to get a current account in the timeline will appear a rendering or reading circumstance

  This does not happen.

• fundamental question of write and read.vi series

  I downloaded the basic_serial_write_and_read.vi so that I can learn how to make my VI communicate through series.  Why the example diagram shows the resource name VISA, baud rate, parity, etc. as small rectangles, but when I go to create my own vi and the attempt to put what I think, it's the same controls down, they appear as squares of normal sizes?  I have chosen the wrong controls?  I do not know how to attach a file, or I will show you my vi.

  Tron

  What you call "normal sizes squares" is called the display icon and for those of us who use LabVIEW for awhile, there is nothing normal in their subject. You can right click on any of these and check/uncheck the "view as an icon. To place all the controls/indicators on the scheme in the form of smaller objects, go to tools > Options > block and uncheck "terminals in front Place as icons.

  PS why you download this example? It is part of the examples provided with LabVIEW.

• Basic visa write and read the example

  I use basic visa read and write example to control my temperature controller in fact it works perfectly, but I want something else. First of all, I like to read the value of continuous temperature and it can be read on the read string section but I want to do but digital indicator to see the temperature value is it possible? And what is the function I should use for this? In fact I used the analysis of chain to do but I have not checked but it works or not?

  Second, I have to set temperature sometimes on the controller actually I can do writing tset = 025,0 to set the temperature F 25, it works when I write this command in the Panel (string to write), but I want to do like DIGITAL controller or something like that instead of writing the command for each setting is possible. I want to increase or decrease the temperature by pushing the increase or decrease button instead of write tset = 0.250 / a. could you help me with this?

  Thirdly, I want to run some parts of the program permanently a part when I want to run, as possible, now I have while loop and my example works permanently. I want because when I set the temperature which must not operate continuously, because it is a time command to read the temperature value this section runs continuously as the temperature on the experimental set-up is changing one I have to see this change, for example I set temperature 100 F and the peripheral controller 100 F heat , but this order is an order of time, but read temperature command should run continuously because the temperature is changing and I need to read the temperature for every 60 seconds and I can be a part.

  

  Make sure that you concatenate text constants "code view".

• Is it possible for SocketChannel write and read at the same time?

  Hello
  
  May a SocketChannel simultaneously read and write?

  Yes. TCP/IP is a full-duplex protocol and therefore its Java application. Two of them.

  The only exception I know is weird where you use a SocketChannel in blocking via channels flow mode. These are internally synchronized probably on the channel itself, or at least a common object, so the reads and writes are synchronized between them. It is clearly a bug.

• At the same time perform write and read

  Hello

  I use
  DAQmx NOR-USB-6259

  I have problem with parallel
  run the analog signal (for example 1000 points of writing
  by 1 second) channel Dev1/ao0 physics and at the same time read
  1000 points per second physics channel Dev1/ai0 1
  How to do this?
  I tried to use DAQmxExportSignal, but it does work well, or simply, I
  don't know how to do
  correctly maybe I should use a different
  the function?

  Best regards

  AndrzejS

  Hi Andrzej,

  Yes, it's possible, but with your device not at the same time, just with a little delay (about 1 US).

  The track is almost the same thing, you need to add 2 more channels of analog inputs to your task and use playback of multiple samples. Just check the VB Clk Acq - Int example.

  I can't help with particular code, because I'm not familiar with VB, but daqmx functions are very similar, if this change is 3 click in LabVIEW, then it must also be very easy in VB. You manage tasks, if your task contains more channels HERE you will receive samples of all channels.

  I hope this helps and let me know if I misunderstood something.

  Gabor

• How to write and read from the cache in Labview?

  
  

  Hello

  I would use "the spreadsheet file reading" to read serial numbers stored on your hard drive. If your file has each serial number on each line of reading spreadsheet file will return an array of 2D with the first column containing numbers. Then use 'Index Array' to get a 1 d of your serial numbers table. In your loop, you will then use VI 'Picture 1 d of research' to check if the SN is in the table. It returns-1 if its not found. If to use build table to add the serial number. Then use 'Write the spreadsheet file' to save the new list of serial number in line.

  Hope this helps

• Distortion of the signal caused by the channels # sampled and sampling frequency

  I am using an acquisition of data USB-6211 (250 ksps / s) and looking at the sample channels 3s 80kS. (Labview 2012)

  When I taste one channel, it looks fine (1 Channel_Sampled First_250kS), but when I add another channel to be sampled, the signal is driven down and that it depends on which channel is sampled (2 channels (Different) _Sampled First_40kS and 2 Channels_Sampled First_30kS).  Addition of channel 3, it pulls down even more.  I also noticed that the sampling rate also distorts the signal the higher the sampling rate, the more the signal is driven down.

  The acquisition of data IS sampling of signals "correctly" when I run my Labview VI my external hardware begins to read in correctly based on the distortion of the signal.

  What is the cause and is there a way to fix this?

  I have attached the waveform above captures and can post some if necessary.

  Thanks in advance,

  WBrenneman

  That's exactly what ghosts means.  The measurement signals later is affected by other signals.  It happens usually if you have a high impedance input signal.  Adding pads like you can help solve this problem by making the signal to a lower impedance.

  Ghosting would probably look worse to the frequency sampling rates higher, just as you said that you had problems, as it provides less time between samples of the amplifier set new voltage level when the multiplexer allows to switch between input signals.

• Why are there at - it such a delay, write and read a PWM signal to digital input?

  Hello!  I am trying to read and take action on a PWM signal.  The equiptment I'll have access to: 9201, 9425 and cDAQ-9172 chassis of NOR.

  That's kind of what I'm experimenting with now (I have tested with a device USB 6211).  Someone at - it a better idea how to do that?

  The problems that I encounter:

  (1) it seems there be then buffering of questions?

  (2) it takes too long.

  My vi is attached.

  Thanks in advance for any help you can give.

  Also, in my final application, I will not have to create the PWM signal - this is just to test the acquisition currently.

  Try to use functions DAQmx directly rather than the DAQ Assistant.  They are a little more work to learn but are more effective.  Your 6211 can generate a PWM signal in hardware, so use it (see examples of LabVIEW).  Finally, of course there will be some delay in your code.  You read to 1.5 k samples to 1 k/second, so each loop cycle will be 1.5 s.

  EDIT: also, why you write 1 k samples and then read 1.5 k, both 1 k per second?  This means that your output will not generate any signal for long periods of time...

• USB disabled not able to write and read access but user authorized to datacard possible

  Dear all,

  I need usb disabled unable to access both read & write. But able to access a Data card and USB mouse.  This is possible thanks to a block log. Please post your suggestion.

  Hello

  1. What is the exact problem you are facing with USB?

  2. you receive an error message?

  3. have you made changes on the computer before this problem?

  Please provide us with more information to help you further.

• I use the MODBUS library and can receive data, but I can send it very well?

  Hello

  I use the Modbus Library to communicate with a VFD to control a fan. I use the master write and read vi. I can write data to the drive mechanism and get the fan to do what I want. The VFD is supposed to send a package of confirmation after I told him to do something and I can also read its records. When debugging the VI it shows that the problem is that the buffer always reads zero and the VI timesout. If I look at the USB adapter lights to RS 485, I use to interface with the drive mechanism, I see that the flashes of light RX immediately after I send a message. So I should have something in the buffer. Does anyone have any suggestions?

  Aaron

  OK, here's what has happened to those who have this problem. In the series Receive.vi MB The bytes to the Port of property node has been reading 0 even if there was something in the buffer. Executing the program was then stuck in a loop until it expired and never went to read anything of serial port buffer. I didn't spend too much time wondering why that VI has not worked and created my own. Within a period appropriate after writing to the serial port, I used the same bytes to the Port property node and was able to get the exact number of bytes to the stream and then VISA vi the number of bytes to read. I received the message of the right answer and everything seemed good. But of course that NO! Then I experimented with different speeds of writing to the drive mechanism to get the fan to operate at different speeds. I found a small range of speeds where I get no response to the VFD, either in operation or by sending me a response packet. After a while, I found that there is a mistake in the LRC-8 code in the MODBUS library OR. It does not prescribe that the LRC will be a two-character value. So if your LRC is proving to be a single character such as F value (which should be 0F) you get an incomplete MODBUS message. This has been easily corrected in the vi LRC8 saying "number in hexadecimal string" vi to produce output with a minimum width of two. Then everything worked fine. Moral of the story, it's the MODBUS library is awkward.