loop and multi com ports

Similar Questions

• change the com port assigned to the fax and scan

  I used fax and scanning for once.  I had to move my external modem to a different port.

  I don't know how to change the windows fax and scan com port manually.

  the wizard does NOT start, I guess because the fax is installed and worked until I had to change the number of COM port...  I need to change the number of pot with hundreds of research, it seems that no one knows how to change manually the Compote in windows fax and scan, unless they use the wizard.

  my assistant does not start. I guess I'm 'old school' I don't need an Assistant, I need to manually change the fax uses com port.

  :-), it's frustrating because help said only: click "fax" in the lower left corner, and they all assume the installation wizard starts and everything will be fine. :-(

  the wizard does not start. :-(

  I am desperate to get my fax work and need to know how to set the correct port number in a system that is installed and running, such as the wizard never starts.

  for anyone who goes out at the end of questions and ideas, I have a fax application stand alone who is working with the new port setting. It's just not a good app for my needs

  Please?

  Thank you

  John

  Post proposed by the moderator of the appropriate forum category

  Hi John,.

  You can follow the steps below to change the COM port for a modem:

  1. search the Device Manager.

  2 look for the Modem device, right-click on it, and then click Properties.

  • If the change settings button is present, you must click on it to make changes to the appliance. If the user account control dialog box appears, confirm that the displayed action corresponds to what you want, and then click continue.
  • If the change settings button is not present, the modem does not support the ability to change the modem settings. Refer to the documentation provided by the vendor of your modem.

  3. on the Advanced tab, click Advanced port settings.

  • If this option is not displayed, the modem does not support the ability to change the assigned COM port. Refer to the documentation provided by the vendor of your modem.

  If the same persists, we suggest that you post your query in Microsoft TechNet so that their support team will provide you in-depth assistance.

  Kind regards.

• 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

  
  

• COM port reading and writing

  Attached VI, a while loop executes sub 4 screws... The data read in the COM Port; Analysis of the data, prepare the response packet and send response to Port COM... It does not (I think that's not reading the data at regular intervals) to certain commands a few times... Can anyone suggest me two different ways of programming that, I thought using the queue and 2 all in loops (reading data and analysis in a loop, write in the 2nd loop analysis and Com Port)... But my class given Com Port number; Don't know how I share between 2 parallel loops for the queue.

  Kind regards

  Chandra

  My original with objects Code works perfectly with a delay in the while loop; Thank you for pointing me in this direction...

• I can't find com ports in Device Manager. Trying to interface with a counter digital multi via a RS232 connection.

  The software supplied with the meter has enough summary documentation.  When I tried to open the software, a window pops up saying that the port com 1 cannot open. I used baud rate settings that the software manual recommends but no help. Then, I uninstalled the COM ports. Now they are gone and I don't know how to re - install.

  UPDATE: I've read elsewhere that the BIOS should have the com port activated, so I went into the BIOS and of course it was off. I suspect that it is off all the time, because the software failed to connect to it when I first installed it. As soon as I have it set to com 1 everything works.

• My device used to be included in the device under the turbine BP & COM port section manager now it is hub USB root and I can't connect with my camera. Help

  I have a machine that uses a USB to serial connection, after I installed the driver in my computer, it finds the machine and load the device in the ports COM & LPT, but this morning for some reason, he shot my device in the USB root hub system. How to get out of there and recognized him as a COM & LPT device since it is a USB to Serial Port that I can discern the number COM port so that my computer can communicate properly?

  Hello
  
  1. What is the model and brand of the device?
  2. do you see any red or yellow bangs in Device Manager?
   
   
  a. in device, right-click on the Device Manager and select Properties.
  b. now in the Properties window, click on the tab General Post back the message found underdevice status.
  
  Open the Device Manager

  Thanks and greetings
  Umesh P - Microsoft technical support.

  Visit our Microsoft answers feedback Forum and let us know what you think.
  [If this post can help solve your problem, please click the 'Mark as answer' or 'Useful' at the top of this message.] [Marking a post as answer, or relatively useful, you help others find the answer more quickly.]

• Connect pc with win 7 to an instrument THEN use the com port and the PPP protocol

  Dear all,

  I need to make a connecting series between a pc with win 7 and one instrument.

  To achieve this I have to use the com port and Protocol PPP. In win xp is possible but I'm not able to find the same in win7

  concerning

  Diego

  Hi Diego,.

  Thanks for posting your query in Microsoft Community Forum.

  According to the description of the issue, I recommend you post your query in the TechNet Forums. TechNet is watched by other computing professionals who would be more likely to help you.

  TechNet Forum

  http://social.technet.Microsoft.com/forums/Windows/en-us/home?category=w7itpro

  Hope this information is useful.

• WINDOWS 7 allow interrupt sharing. We have a system that has several COM ports and IRQS not enough.

  Original title: some j

  WINDOWS 7 allow interrupt sharing.  We have a system that has several COM ports and IRQS not enough.  In XP Pro, there was a sharing bit interruption that you can set in the registry editor that would allow this sharing.  Sound in windows 7, but it doesn't have the same results.  Any ideas?

  Hello

  I suggest you to report this issue in TechNet Windows 7 IT Pro Forums: http://social.technet.microsoft.com/Forums/windows/en-US/home?forum=w7itprohardware

  Thank you.

• How to change the IRQ and address of some of the COM ports

  Original title: jcertain

  No, I loaded 7 a window in one of our systems.  I want to change the IRQ and address some of the COM ports and were not too.  In the pasted, you can enter the Device Manager and click on the device, then go to the "resources" tab.  There, you can find a box that allows users to disable "USE AUTOMATIC ADJUSTMENT", which would allow you to change the IRQ and address.  But for some reason any box is not highlighted so you can not.

  Please post your request here:

  http://social.technet.Microsoft.com/forums/en-us/w7itprohardware/threads

• COM ports and USB data cards?

  When I connect USB data cards windows assigns a COM port? Why is this happening? Are serieal devices USB devices? Why the COM ports assigned to the USB devices? What I know, it's USB ports and serial ports are different and they are there with a different set of standards.

  In general, Yes.
  (There are sometimes problems with things like USB adapters series converter when you use a device physically connected by a serial port, but it is a bit different).

• 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.

  

• [begineer] reboot a 'while' loop reading the serial port

  Hello! I read some data from a COM port. I want to read my like this "%d S. the unit will send data continuously and depending on when I push the button run in labview, it can start to read data from the middle (%d is a four-digit number). as: 23 S 15'

  "whenever the first character of my data is not of", I need to restart playback. I read the data in a while loop. so I need to stop the while loop. From what I found on the internet, I used a case, another while loop and shift registers.

  but in some way I'm stuck inside the while loop. My VI is attached. Thanks in advance and sorry if my code is a mess!

  PS: what should I do if the bytes I get to the port is variable? use bytes to the port?

  The device sends a character at the end of the line at the end of each message?  You are currently Setup to do this by activating the stop character (currently set to end of line/10/0xA).  If this is true, then simply set the bytes to be read on the VISA to read something rediculously high.  It will stop playback when it finds this termination character.  From there, you just have to check for the correct format.  If this isn't the right format, ignore him.  Otherwise make your recording.

  I managed to clean up your code a bit on this basis.

• How to detect the data received in the com port?

  I used NI-VISA, read to read function and tried to write and read the same data through back loop. I have read from the port, but I need to read only when all the data is in the port.how series I detects all data received in the com port? Based on the data received to write the data to the port only i need.

  Please help me

  Better it should work... just create your own port number, I used 20 com

• How to use the shared variables to address several Watlow controllers on the same COM port

  Hello

  I am using LabVIEW 2010 to control 4 Watlow temperature controllers on a port com 3 are model 96 and 1 is a zone EZ controller. The controller has a unique modbus address and I'm trying to read from and write in the individual records (for example, setpoint closed-loop) variable shared help. I would return the data during playback (even if the data is displayed as invalid), but I am unable to change the value in the registry in writing. How can I be sure that's the Modbus server send commands to the correct controller?

  Chuck

  Hi Chuck,

  Sorry for the delay in response, I was away last week. You can create as many servers for Modbus on one COM port that you would like, the only problem you'd see is if you tried to call the port from different locations at the same time. With respect to the documentation to cross, I'd start with the tutorial below for a comprehensive manual of Modbus. There are also quite a few listed under Datalogging and supervisory control Module help topics that may be useful if you want to solve specific issues.

  Introduction to MODBUS

  Kind regards

  Peter W.

• 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.