Expire on Serial read

Similar Questions

• Synchronization with Serial read/write problems. can not get the functionality of the terminal emulator

  Hello

  I am writing a VI to control PWM with a microcontroller via a serial port. I wrote a simple code for the microcontroller that allows me to set the ratio of duty cycle on a scale of 0-65535. It works very well with Termite of Compuphase (RS-232 plug); The microcontroller invited me to an entry, expected that I would one, updates and expected another entry when I decided to send him. Now, I'm trying to get the same functionality on a LabVIEW vi but hit a snag.

  When I tried to send my orders with a series read base and an example of writing, everything worked fine. I could see the prompt entry, write an entry and if I was quick enough, check out the update message. Even when I was not fast enough, I was able to check the update by monitoring the PWM pin with a Logic Analyzer. The problem with the basic example, however, is that I need to update the report to aura cyclical ratio, so I went for an example of reading continues writing. The problem I've met; is that I have to switch between reading and writing to make it work. When I do that, either I don't hold write it down long enough and nothing happens, or I get several updates when I switch to reading. Some of these updates don't even match and produce updates to defective upgrades for example; 16000 16000, 16000, 16000, 6000, 600, 60, 16000, 1600, 60, 0, 0, 0, 16000, 60, 0, 0 etc.

  I tried which allows characters of endpoint in the hope that the writing would end at the end and go to reading where he would receive a termination character and wait for me allow writing once again, but nothing helped. I still have to alternate between the two and either get no response on reading several updates of variable accuracy. I tried to remove her allows read/write and their structures of matter in the hope that the loop flow, associated with the characters of endpoint would the case, but then the updates don't register at all. The funny thing is I did a VI like this before with an Arduino and that there not even no need to switch between writing and reading (I'm now using a Board of Freescale FRDM).

  I was also the frequency of timeout errors; Error-1073807339 at VISA Read, reason Possible: VISA Hex 0xBFFF0015. I removed the option to stop the while loop if there is an error so I can run but always pops up an error on the judgment occasionally. Could the problem of synchronization always cause me problems?

  Would appreciate all advice really, I am providing my slightly modified example screws and can provide the code for microcontroller on request, even if it's very simple.

  Thanks in advance, it is
  Yusif Nurizade

  In other words, frankly, a good bad example you according to your code. Also, you have the order of writing and read upside down in your amendment if the instrument requires a command to return something. It should really be using a structure of the event. The structure of the event around a write and read and use a value change event. I have attached a quick change. This mod is still a reading after writing. If necessary, you may have two separate events to write and read.

• Acrobat Pro DC - cannot use tools; wrong, says "subscription expired;" wants "serial number", but there is none

  I bought a subscription for Acrobat Pro DC. The payments are current and the plan is active.  When I try to edit a pdf file, I get an error message saying "your subscription has expired."  I hit the button in the Middle, 'enable '. Now he wants my "serial number".  It is a download software, so there is no box of product.  I log into my account, access plans and products, but nowhere it lists a serial number for the program.  I'm going to help in Acrobat Pro ms and choose 'On Acrobat Pro DC', but it does not list a serial number.  I watch the Bills for my monthly payments, but they do not enter a serial number.   I tried the Chat support, but "Nicky" gave me advice of gibberish and then disconnected me after 19 seconds of chat.  I tried phone support, but the polite man whose Indian accent is almost too thick to understand told me that he couldn't help me, when it became clear that it could not take on my machine remotely, due to the security settings of my company.

  Also, I can connect to my Adobe account in a browser (IE or Chrome), but when I select the "Sign In" button at the top right of the window Acrobat Pro DC, it connects, and so I can not sign the program.

  Check your subscription payment has been processed and your adobe id is correct, https://www.adobe.com/account.html

  log out and then back to your office to cc using the same adobe id allowing you to check your subscription is current, https://helpx.adobe.com/creative-cloud/help/sign-in-out-activate-apps.html

• CS6 open expired Trail, serial No. now invalid

  I use a Macbook pro with Mountian Lion. I had a free trial of the Master Collection Adobe CS6 then bought Prodution Premium Creative Suite 6 (Master Collection) online to have disks delivered to my house. My disks arrived the day before my trial was going to expire and I installed without problems and the serial number to register online without any problem.

  The next day I went to open InDesign and he told me my trial ended, so I clicked on "license this software" and tried again my serial number. This time, he said it is "unacceptable". Photoshop is the only product that opens now. I can't even installation instructions on my drive over at because it's a PDF and my trial went.

  How can I open the applications I purchased and registered online instead of the trial expired?

  Although technically you didn't really need to reinstall the software, simply enter the serial number of your purchase box would have.

  But anyway, only Adobe has the power to resolve questions related to the licenses of serial number, so with this type of problem, you will need to contact their service the customer in your area.

• PM3000a: Serial Read and Write out of sync

  Hello

  I'm reading the values of the PM3000a during the series. I use LabView 2009 32 bit and VISA 5.2.

  I used the LabView driver and programs downloaded from here and have reworked to get my current VI.

  Mainly in my program, I am looping through some series of an array of strings controls and burning one at a time to the PM3000a during the series and then read and store the query results in a digital picture.

  For some reason, sometimes values blend. I have attached my VI and a screenshot.

  The results that I expect are:

  (Power application): FND:CH1:WAT? = ~ 300

  (Application of voltage): FND:CH1:VLT? = ~ 230

  But the actual results I get:

  (Power application): FND:CH1:WAT? = ~ 230

  (Application of voltage): FND:CH1:VLT? = ~ 300

  Thanks in advance

  In somne point you miss read data, so it will stay in the buffer and will be read instead of the most recent data.

  Add a ' VISA RAS I/O buffer "before sending a request should help.

  And try to find out why there is some left in the buffer data data sometimes can be send because of the interaction of the user on the intrument Panel (print button etc.))

  The response of an instrument generally includes the unit, using "Analysis of the chain", you can add a control.

  During the validation of the screws, you must include the Subvi

  For assistance with additional string testing also store strings in an indicator of the chain, make all default values, save the vi and that post.

• Cannot read serial communication in OHAUS Ranger 7000

  Hello

  I'm reading a balance OHAUS Ranger 7000 data. Communication is via a virtual USB port (drivers came with scale). I have configured the port according to the parameters of their manual series. But for some reason I'm not able to read all the data. The process is either expire or I read 0 bytes data. I have attached the snippet here. I'd appreciate really any suggestions on this.

  Thank you

  Naren

  I have tried several things and understood the mistake. The program worked when I wrote the one byte of orders at a time.

  

• structure of event using read indicator labview

  Hello
  I would like to be able control the light using the structure of the event.
  I use with block serial reading and analyze the string. When he acknowledged the string must change the State of the LED each time.
  Please let me know if it is possible and how I can exec who?
  Please find attached the file VI.
  For example I would like it when the string "Door open!" is displayed it must change the State of the LED.
  Thanks for any help,

  This isn't to make the event Structure is used.  An event Structure is used to capture GUI events, as a user presses a button or changes the value of a control.

  If you want just the value to toggle, using a shift register to store the current value.  If you find the right chain, toggle (using the NOT function).

• Subset of the Serial error string

  Hello world

  I have a simple program. I used arduino to transfer a string to labview.

  And in Labview, I want to chain of subset. But she works only first string and the strings later be not subset.

  Can you help me find my error?

  Thanks for reading

  Here is my code and my mistake

  

  Here is my video: https://www.youtube.com/watch?v=Gm5nOrZ3iyo

  Here's my arduino code:

  #include
  #include
  int i = 0;
  LiquidCrystal_I2C lcd (0 x 27, 20, 4);  set address 0 x 20 for a 2 line display and 16 characters LCD

  void setup()
  {
  LCD.init ();    initialize the LCD
  Serial.begin(9600) (9600);
  attachInterrupt(0,irt1,CHANGE);
  attachInterrupt(1,irt2,FALLING);
  Print a message on the LCD screen.
  LCD.backlight ();
  LCD. Print ("Hello, world!");
  Serial.Print ("Hello, everyone");
  Delay (1000);
  LCD. Clear();
  }

  void loop()
  {

  While (Serial.available ())
  {
  tank r = (char) Serial.read ();
  if(r=='t')
  {
  lcd.setCursor (0,0);
  LCD. Print ("you're a robot");
  Serial.Print ("you robot\n");
  }
  ElseIf (r = ' a')
  {
  lcd.setCursor (0,0);
  LCD. Print ("you're human");
  Serial.Print ("you human\n");
  }
  }
  }

  Sub irt2()
  {
  Delay (1500);
  i ++ ;
  If (i %2)
  {Serial.print ("ngaysinh010071992\n") ;}
  on the other
  {Serial.print ("ngaysinh123455\n") ;}
  }

  I advanced and did a cleansing of your diagram.  See if that makes sense.

  

• Minimum time to wait in the loop of reading series

  Hello

  I would like to ask if it is possible to read data from a serial port loop each 17ms? If so, how to read Serial and it management loop set.

  I'm the Arduino Uno card reading that can run on up to 115200 baud rate of kbs. Arduino sends each integral 17ms (0-3). Now, I can't read them separately (each part one by one, I get numers as 123, 231, 12, instead of 1, 2, 3 etc.), but this may be due to other stuff I do in the loop. I elaborate more on my VI later - now I would like to know if it is possible using LV 2011 + VISA read serial number of each 17ms. What bothers me the most is that I saw many times on this forum that people suggest of don't not to go below 10ms timeout in the Serial reading loop (same base series Read and Write provided in examples of or). If ms waiting loop of x, where x is 17ms divider?

  You hear that you read whole and not full? Send you one byte or more? If it is a single byte, then just define it as the number of read. Do not put in any function wait and do not use the VISA to the Serial Port bytes. Playback VISA will be automatically terminated when one reads a single byte. You send a terminator after the number? Waiting in the example has nothing to do with a constant data stream reading and with a terminator is completely useless.

• Visa read write on port series independently and at the same time!

  Hi all!

  I need to read and write data to and from a serial port (rs232) independently and simultaneously .

  I'm sorry that I can not put a picture of that, but it's very simple:
  

  I used "set up the serial port" and forwarded to two while loops, the resource reference.

  a loop is reading data and the other loop is writing data to the port.

  the problem is when the playback loop (function serial reading) waiting for data - it blocks the other loop to run (writing of the serial function is blocked).

  I searched the forum and find this visa open function has 'duplicate session' option - that's what I need?

  If true, can someone explain exactly how to wire and use it in the right direction?

  Thank you very much.

  Guy.

  OK, I found an example that solved my problem: a VI called   serialduplicatesessions.

  The file is associated.

  Here is the link for all cases: http://zone.ni.com/devzone/cda/epd/p/id/1727

• integration of vi and teststand DAQmx

  So far I did well on teststand using instruments ordinary like scope, power, electric, generator functions, dmm and switches.

  So I had to use a map of daqmx for a particular test. And I found that I can't pass the reference to the task through teststand because he would be with a regular dmm, function generator tool. the trial regular that I'm used to is to:

  * init instrument (reference get)

  * use Vi to:

  Configure

  Read

  Beginning

  Stop

  * Close reference

  So what I had to end up doing for example in a test were I put the analog output value to my DUT then via a serial port, get the value that my DUT is reading.

  the ususal way will be as follows:

  -define daqmx

  -Start daqmx

  -DUT Serial read and limit test

  -Stop daq

  -Close task

  but it does not work like that.

  what I end up doing is run a vi on the bottom with the Daqmx task and have a notifier of testand my vi as the closing image

  

  TestStand notifier

  

  My daqmx statement is correct?

  It's one of the ways to do it with daqmx?

  your feedback to improve the use of daqmx on testand will help me much.

  Thank you

  Buton,

  You can pass the task handle DAQmx between different measures of LabVIEW. TestStand has what is called a LabVIEWIOControl, which is a particular type of object used to transfer these settings LabVIEW IO between steps. More information on this process can be found here: http://digital.ni.com/public.nsf/allkb/131A6A87C331B3CA862571EA0004D8C1

  Side of LabVIEW, all you need to do is create necessary/indicators controls wired to your façade with the task handle entries and exits; the KB above describes how to implement the object that manages these references on the side of TestStand.

• Find visa byte

  Hello:

  What is the way to start a loop based on a byte of spisific, which changes this byte and the same aprears of value in the data?

  The VI here, reads the byte stream, but I want to start reading the loop of the case, as soon as a value = 14 aprears. I need to synchronize the bytes and start the reading of the package of 25 bytes to the value of spisific.

  Imagine a code such as:

  If (Serial.avaliable () > 0) / / if the bytes are coming

  {

  int inByte [0] = Serial.read (); read the first byte

  {If ((inByte [0] == 14) & (boolian_Variable == ture)) / / If this byte is equal to 14 and the loop has not been started then read 24 bytes}

  {for (int i = 1; i)}<24;>

  {inByte [i] = Serial.read ())} Save 24 bytes in a table

  boolian_Variable = false; fix boolian false, in order to avoid the runing this loop again

  Serial.Print ("inByte [3]); series print the desirable value

  }

  }

  }

  My apologies to folks who would like to answer that I run labview 9 on my machine. I'll upgrade my system. :-)

  Thank you.
  KD.

  What I've done in the past is to read all the available data to the serial port.  I then use a search string to find the start character.  Then, I use split string to get the 24 bytes of the message.  Save the rest of the string into a shift register.  Repeat steps.  Add the newly read data for the old remaining data before performing the search again.

• VISA LABVIEW WITH ARDUINO ERRORS

  ANY1 CAN HELP ME? AND ANSWER ME?

  I have attached my DAC08 program linked with arduino.when, I command you to serial arduino DAC monitor responds means arduino prog is ok. but when I have LabVIEW command it's not working. I don't want to use LIFA. I just wnt to use VISA to make the animals to my arduino on selection and my arduino to be programmed for each time a hexadecimal string of particular comes from visa what corresponding hexadecimal code must be routed to the device.labview interface is not reached.

  I could not attach the file of arduino prog .ino. So I copy the same here pastin

  #include
  #include "htoi.h".
  void setup()
  {
  Serial.begin(9600) (9600);
  DDRC = 0XFF;
  }

  void loop()
  {
  char a = Serial.read ();
  Switch (a)
  {
  case "164":
  PORTC = 0XFF; THESE VALUES MAY VARY AS YOU WANT
  break;
  case "B":
  PORTC = 0 X 00;
  break;
  case 'C ':
  PORTC = 0XC0;
  break;
  case would ": //MORE CASES CAN BE ADDED for the purpose of TESTING IF NECESSARY"
  PORTC = 0XD0;
  break;
  by default:
  PORTC = 0 X 00;
  }
  }

  and print screens to block dia LabVIEW

  Please answer quickly m really in need

  concerning

  rich

  
  

• Structures of the event, radio buttons and the property disable node

  Hello

  I have a very simple VI intended to simulate what I'm trying to accomplish in my program... in fact, when the 3rd option button is selected, I want the text box is disabled and grayed out.  Instead, the case of the event seems to perform the action on the * next * the iteration of the loop.  Can someone tell what I am doing wrong?

  Thank you!

  The terminal of the radio control is inside the case of the discipline concerned.

  (.. .or you can read the new value from the data event [NewVal] node instead if you need the Terminal also).

  Currently, it is read immediately and the value placed in the tunnel. When the event is triggered, the expired value is read from the tunnel.

  Once you pass the terminal in case of the event, it reads only after that the value has changed, and you get the current value.

  Also:

  • You also need an event for the button stop, otherwise the VI cannot be stopped easily.
  
  
  • You have the same property node in any of the structure of the case. Put it down after the structure of the case and one is enough.
  
  
  • Things that are different are inside the structure of the case.
  
  
  • You can combine the cases that are the same (not the default)
  
  
  • You can remove the case of timeout.

• Can't see the terminal emulator port after all control with VISA

  Hello

  I created a LabVIEW VI to control cycle to PWM channels on a microcontroller FRDM KE02Z reports. The microcontroller, programmed in CodeWarrior, is set up to receive an an input of the terminal string and break it in two parts (the channel name and ratio), which are then applied to the PWM. The code works and I tested with the 2.9 Termite and a Logic Analyzer before ordering through LabVIEW. The problem I had, though, is that I have to completely close LabVIEW to see the port on the new Termite and vice versa.

  Previously, I had problems with VI after I something else in it, even a VI almost identical, more open as he was using the same port. I get errors and be unable to get my VI to work again unless I restarted LabVIEW. I was able to fix by adding a VISA flush the IO buffer according to a discussion earlier (http://forums.ni.com/t5/LabVIEW/Timing-issues-with-Serial-Read-Write-can-t-achieve-terminal/m-p/2636... once the configuration of the Port series and at least now I can jump between the screws I am still unable to see the port jumps between LabVIEW and termite, unless I close one;) Close VISA and the closure of the VI are not enough, I must close LabVIEW himself. Is it possible to achieve only within the VI? For example using a VISA or VISA clear Flush at the end (after closing VISA)? If Yes, what is the difference/preference between them?

  As I mentioned previously, the VI is functional, but I would like to know what is happening for future considerations. Would appreciate any advice.

  Hope to hear from you,
  Yusif Nurizade

  You have not wired resource VISA through the stop event name so it doesn't close anything.