No available on sbRIO serial COM port

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• prolific usb-to-serial com port driver problem. I can't load the driver from propper for her. What should I do?

  prolific usb-to-serial com port driver problem. I can't load the driver appropriate for that. What should I do?

  Hello edmcski,

  This thread has been created in the Feedback forum. the Microsoft moderation team has moved this thread on the forums of hardware and drivers.

• Windows XP does not allow applications to use the virtual serial (COM) Ports

  Operating system: Windows XP Professional version 2002 Service Pack 3

  I want to use some applications to control virtual serial (COM) on a device of PEARL IOLAN STS8 D/TruePort ports in Windows XP Professional SP3. When I configure the IOLAN/TruePort I see the COM ports in the Windows Device Manager and I am able to configure my applications to use ports.  However, when applications try to open the serial ports, I get an error saying that the port is already in use or does not exist.

  I tried various alternatives to remove/re-add the ports 'in use' in Windows before you configure IOLAN/TruePort and applications. This (sometimes) allows me to use the ports but if the PC is turned off later and rebooted the problem reappears.

  Is there a reliable way to create and use virtual COM ports in Windows XP?

  The IOLAN/TruePort Pearl versions are:

  V4.3 Device Manager
  Firmware TruePort 6.4

  Hello

   

  The question you posted would be better suited in the TechNet Forums. I would recommend posting your query in the TechNet Forums.

  http://social.technet.Microsoft.com/forums/en-us/itproxpsp/threads

   

  I hope this helps!

• VISA, unable to contact or see RS232 serial com port

  I have a Dell Optiplex GX260, who had recently for Windows XP (Service Pack 2) re-installed on it.  National Instruments VISA is unable to communicate with port com RS232 serial on the computer.  Control of "VISA Resource Name" in LabVIEW 8.5, or the "measurement and Automation Explorer" can see serial port.  Refreshing the list does not help.  "HyperTerminal" is able of see and communicate with instruments connected to the serial port.  In windows 'Device Manager, the serialport appear in the list of material without any warnings.

  Can someone please help with suggestions on how I may be able to get the VISA in LabVIEW 8.5 to see and communicate with the serial port?

  System details:

  Dell Optiplex GX260 (One RS232 serial port)

  Windows XP Edition Family Service Pack 2

  LabVIEW 8.5

  I had this happen to me once. In my case, I've updated to the latest version of VISA that corrects the problem.

• Serial com port USB displays error code 10

  When I did a check up on my computer (Windows 7 OS) this morning he said my serial port USB COM 3 would not start and had a code 10.  I went to the Device Manager and checked, and it says the same thing.  I clicked on update of drivers and it said that I had updated the drivers.  I plugged the USB things in the USB port and it worked fine.  I went to Device Manager and it still has the yellow mark with code 10.  How can I correct something that seems to work correctly?

  Thank you

  Shirley

  Hello

  1. did you restart the computer after uninstalling the USB device?

  I suggest to restart the computer and let Windows install the drivers automatically, or you can use the link below.

  Update drivers: recommended links

   

  http://Windows.Microsoft.com/en-us/Windows7/update-drivers-recommended-links

  Hope this helps and keep us posted.

• How to manage the data after the serial com port?

  Hi all

  I'm new to labview and serial communication. I tried to receive data on external device labview (pic18f452). It's done, but I am getting data as strings. If microcontroller gives "11.25", in labview each letter is delivered to a different as string ("1""1" "". "") "2" "5").. How can I manage data... to make it unique as 11.25, a number constant.

  If possible, join some examples with your answers... Thanks in advance.

  It seems that you read too fast, read up what an endcharacter probably puts the characters in a string that can translate the string of numbers conversion routines in the palette of the chain.

• USB/Virtual COM port Communication problem with ESP301/LabWindows/CVI

  Hi all

  I have gone through different threads posted in this forum for similar issues and all tried, but nothing helped.

  I'm trying to communicate to the ESP 301 training monitor via a USB port configured as a serial COM port using a CR. Have it ' command is to get the version of the controller. The "write" "ComWrt" command works fine but the read command throws and error ("-99 operation e/s timed out"). I tried all the suggessions; with delays etc... who has explained (resolved by Mr. RobertoBozzolo) in the thread posted here, which explains an issue similar to that of the mine, but the help couln t.

  The code is attached.

  I am using 2012 LabWindows/Windows7 64 bit multi-hearts

  int Get_Version () {}

  comport = 3;

  BaudRate = 9600;

  parity = 0;

  DataBits = 8;

  StopBits = 1;

  inputq = 512;

  outputq = 512;

  ctsmode = 1;

  xMode = - 1;

  Timeout = 5.0;

  com_status = 1;

  char comstring [6];

  DeviceName [] = "COM3".

  Int State = 0;

  char * error;

  int bytes_written = 0;

  char Cmnd_String [50] = "";

  char Read_String [512] = "";

  strcat (Cmnd_String, "ve?")

  strcat (Cmnd_String, '\r');  Tried to 0x0d
  strcat (Cmnd_String, '\0');

  length = strlen (Cmnd_String);

  assert (Cmnd_String [length] == you? \r\0'); Tried Cmnd_String [50] = ' VE? \r\0 ".

  DisableBreakOnLibraryErrors ();

  RS232Error = OpenComConfig (comport, devicename, baudrate, parity, stop bits, inputq, and outputq data bits) ;// tried ouputq = - 1 too

  EnableBreakOnLibraryErrors ();

  If (RS232Error == 0) {}

  com_status = SetCTSMode (comport, LWRS_HWHANDSHAKE_CTS_RTS_DTR);

  MessagePopup ("Comport verified',"CTS Mode works very well");

  com_status = SetComTime (comport, timeout);

  }

  bytes_written = ComWrt (3, Cmnd_String, (Cmnd_String) StringLength);

  If (GetOutQLen (3)! = strlen (Cmnd_String))
  ComWrt (3, Cmnd_String, strlen (Cmnd_String));
    
  status = ReturnRS232Err ();      The status is 0
  error = GetRS232ErrorString (status); / / error number

  Delay (5.0); / / trying to add the time up to 20.0

  GetInQLen (3); Returns 0

  ComRdTerm (3, Read_String, 512, 13); Read from inputQ

  status = ReturnRS232Err ();               Status to return the error code '-99 '.
  error = GetRS232ErrorString (status); Error message "e/s timed Opération" out

  return the situation;

  }

  Can anyone suggest where I am doing wrong?

  Thanking you in advance.

  Another thing you should check is baud rate.  The ESP301 by USB is expected than the baud rate to 921600.  The function for OpenComConfig() group implies that it does not support this baud rate setting, but it seems to work perfectly.

• USB to serial port, Com port to use.

  I have Windows 7 64 bit Ultimate, evga 58 MB Intel i7 950 3.06 GHz, 6 GB ram, many locations for usb. I have a weather station "Oregon Scientific WMR968, I plugged my XP PC via a"usb to serial"cable, it worked well, giving me a com port to use for the software, but it does not work with Windows 7. It installs an input usb device, under the label HID, but not a COM port I have tried many drivers, but she finished in the same way, "peripheral usb entry" NOT a COM port I have tried to install .inf and who does not work either. I tried to update driver, and then point to the .inf and still no good. How to do this job, please. ?
  Frustrated,
  Robert

  Hi Androman,

  First of all I suggest you to check if the Oregon Scientific WMR968 is compatible with windows 7 or not.

  Check out the link given below to the windows Compatibility Center 7.
  http://www.Microsoft.com/Windows/compatibility/Windows-7/en-us/default.aspx

  If it is not compatible with Windows 7, then install the drivers in XP sp2 compatibility mode and also to contact the manufacturer for drivers that are updated that are compatible with windows 7.

  Select the option for windows XP sp2 and install the drivers.

  For more information, visit the link given below:
  http://Windows.Microsoft.com/en-us/Windows7/make-older-programs-run-in-this-version-of-Windows

  Thank you, and in what concerns:
  Shalini Surana - Microsoft technical support.
  Visit our Microsoft answers feedback Forumand let us know what you think.

• Read the serial number of the device in LabView COM port

  Hello

  Is it possible to read a device COM port number in LabView? I would like to make an initialization of the program following the right port COM of a device, for example a USB temperature reading device, and set the COM port as the correct port at the start of the main program of LabView. I want to do that, because a USB device gets usually different dedication of COM port on different computers. Our application runs on 80 different computers. A program like that would be very nice.

  Can someone help me?

  Paal

  Another thought. It also has a place where certain standards can save you a lot of time.

  You have 3 dongles by machine. When setting up a computer are these three dongles * always * assigned to, for example, com 3, com 4 and com 5.

  Similarly, always check that instrument 1 is always on com 3, tool 2 is always on com 4 and 3 device is always on com 5.

  This convention will also simplify debugging...

  Mike...

• How to query a port serial com to determine if it is already open?

  I would like to ask a COM port to see if it has already been opened by another program, and then select another Com port if the original choice was already open.

  What language and api do you use? With LabVIEW and VISA, when you open a port, and it's in use, you will get a specific error (I don't remember the exact error code). Look for this error code.

  The VISA is-1073807246 error

• How to change the settings of the BT COM port with the Toshiba BT stack?

  I have a Tecra S11 with Windows7 64 bit and I need to connect via Bluetooth to a remote the BT series device. I want to use the BT interface on board.

  The BT remote appliance 38400,8, N-2 (stop to the most common place 1 2 bits). Problem: I find nowhere to change local BT Com port settings.

  The physical port HW parameters can be changed. See:
  HW COM1 with the port settings: http://i42.tinypic.com/epg5qr.jpg

  But I don't get the same tab for the port of BT:
  BT COM40 without port settings: http://i40.tinypic.com/24mcduw.jpg

  Not even the BACK order 'mode' allows me to modify the ports of BT

  Curiously, if I have the COM40 to a virtual machine on the same S11-tunnel (virtualbox), the machine virtual XP * can * change settings and communicate correctly with the remote device. How is that?

  Can _How Yes, I change the port COM BT with the Toshiba BT stack settings? _ my version is 8.00.12 (T), which should be the most recent available. I also updated the BIOS.

  Thank you
  Paolo

  Additional details.

  I tried to run the application as Administrator: still does not work.

  I crossed Win registry with regedit and gave all permissions to all users: still does not work.

  With the registry editor, I forced the port in 38400,8, N, 2 in 'HKEY_LOCAL_MACHINE NT\CurrentVersion\Ports': still does not work.

  Note that not only the application target complains, but also does not work the PuTTY used as a terminal series.

  The Toshiba BT application see the remote device were undetermined, serial port, Dev.B. No provider.

  I'm lost and stuck. Advice greatly appreciated.
  Paolo

• COM ports

  I know that when a device (serial or USB) is connected to a computer, the computer automatically assigns a COM port.

  This assigned COM port never changes?
  If so, when?
  For example, is the same port when you

  -Restart the computer?

  -disconnect and reconnect the device

  -change of USB port, you plug the device in

  -etc.

  Is there a way to check what devices are in what are COM ports programmatically?
  I can manually look through the task or MAX Manager, but couldn't I do LabVIEW verify where the unit is?

  Making the USB/RS-232 converters, it seems that when you plug in the device, the next available com port is assigned.  As long as you continue to connect the unit to the same USB port, it keeps the same number of com.  If you connect to a different USB port, it knows and give him as many COM next.  So what I do is to put in place the drivers and plug the unit into one by one into each USB port in a logical order.  That passing the com port is logical position rather than having COM3 in the com 4 back at the top right, com 5 forward, com 6 in the rear lower left corner because that was be the time of the order, I plugged it in different ports at random.

  Then restart, disconnect reconnect, you get the same COM port.  Change USB port, you get a different COM port.

  I don't know ways to check a program, and I think you might find ways by searching the forums.

• Browse the COM ports

  Hey guys,.

  I'm trying to loop through my available COM ports to see what serial port my device is connected to. When I start my VI, it remains at COM1 and never goes to the following COM port. I'm at least on the right track?

  Any help is appreciated.

  Eric

  Auto-index just a loop for:

  EDIT: Given the obligation to stop once you have a connection. In this case, simply use the conditional terminal.

  

• Matter of finding the resources function VISA after COM port disconnected

  I have an application in which I use two COM ports for communication, both only is active.

  Between testing a com port gets connected and disconnected dynamically. I am able to connect and disconnect without problem.

  Now after my com port dynamic disconnected, its not visible in device as Manager, but if I search all the com port available using VISA find resource once it disconnects, then dynamic port COM is also visible in the list.

  Name of the USB interface is USB Serial Port and the com port is dynamic which will be disconnected. VI attached

  Any suggestion please

  
  

• How to find serial USB port assignments programmatically?

  I use a system of 64-bit Windows 7 for hobby hardware / software development.  I am writing a script that controls 3 separate boards via a serial port USB microcontroller.  Unfortunately, I find that the COM port assignments are very dynamic, sometimes change when the boards are power cycled and list again.  I can read the registry in my script and found many entries that contain information (sometimes for the COM port previous assignments that are no longer valid), but I can't tell which are the current assignments.  The information must be available somewhere because Device Manager correctly identifies the current port numbers.  Can someone point me in the right direction?

  Thank you
  Dave

  Hello

  The question you posted would be better suited in the TechNet Forums. I would recommend posting your query in the TechNet Forums.

  http://social.msdn.Microsoft.com/forums/en-us/categories