RS232 read series with COM1

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• Problem by acknowledging an instrument in series with a USB adapter in NIMax

  Hi Forum,

  I have an instrument designed to be controlled via a signal with a RS232 cable series and I try to get NIMax to recognize and send test orders.  My laptop (running Windows 7 Enterprise) has no serial port so I use a USB adapter to connect.  When I could not initially the device appears, I searched online and find suggestions that I should install the NI-VISA driver.  I downloaded and installed, but it does not help - to open VISA test panels is greyed out and it indicates that the unit is 'away' even when it is plugged.  When I open the control panel interactive of VISA directly, the device appears as a question mark, and if I double click top, it says the following:

  Error opening resource:
  ASRL10::INSTR

  VISA: (Hex 0xBFFF0011) insufficient location information or the device or resource is not present in the system.

  Any thoughts on how I can get my PC to communicate with the device?  Thanks in advance for your help.

  Erica

  

  EricaK wrote:

  Thanks for the tip, I didn't know that I needed to install a driver for this.  Do you know if a general device like this driver will work.

  You need to install some drivers Windows are necessary for your USB-serial adapter (should have with the adapter).  Once Windows detects the serial port will be MAX.

• Data drops using reading series visa

  I'm having a problem using reading series visa when you transfer a picture from one PC to another.  Writing PC transfers data systematically as seen by the probe on the chain get into writing.  Exe read the string displays however the string table once and then on the next reading displays an empty string.  It seems new and fourth without a complete data string and an empty string.  The vi that data comes displays a table updated consistent but the exe read the matrix (via RS 232) switches the vacuum to the full establishment of the loop rate which is fixed at 1 Hz.

  Teslac wrote:

  files/NOR/Labview e (toward) Progam vi.llb\Advanced String?   Well Yes

  Bravo and thank you.  There are buttons for those Bravo - simply click on the star under my avatar and brand the solution - (Options > OO > on your right, at the top of each post "Accept as Solution")

  There are three reasons for this:

  1. Other contributors know that they can focus on helping out elsewhere
  
  
  2. It is easier to find the next person with a simillar problem
  
  
  3. We LOVE 'Solutions-pronounced ".

• 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.

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  You can set the layout.css.devPixelsPerPx pref on the topic: config page on 1.0 or Windows 8 to 1.25 and if necessary adjust layout.css.devPixelsPerPx from 1.0 to 0.1 or 0.05 steps (1.1 or 0.9) do the icons to display properly.

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  Yes, the device is AC coupled and has a high pass filter.  There is a diagram of frequency response on page 20 of the user manual:

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• play sounds temporary and file of your choice when reading data with VISA functions?

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  now, I want to play a sound specified (like a song in my desired folder 3s) signal which cross above the specified value range. then after the desired time, it will wait still new cross above the specified value and this repetition of the procedure until I stop the program.

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  I recommend you do the data type of the notifier a cluster that contains a path and a numeric (double).  The path indicates the reader what file to play.  Digital is the duration.

  Now in a way a bit complicated, but really good stop your second loop.  Do not use a second notification.  Instead, send the normal notification but not use a path for the path in the cluster.  Your second loop can write a check for the path of a not and stops when that is received.

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  Https://apex.oracle.com/pls/apex/f?p=73000:35 image

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