Com Port problem running XP

I am trying to communicate with a RidgeSoft IntelliBrain-Bot robot via an installed Radio Shack Serial to USB cable.
The XP system Device Manager shows the active port for the cable is COM3 and that it is working properly.
I have activated the "computer to computer by cable" modem and that is working properly.
With the bot Serial connected to my MacBook Pro USB and the bot turned on, the RidgeSoft program on XP will not start, stating it is an invalid com port.
I am working with RidgeSoft on this but wonder if any similar Serial to USB situations have occured which hopefully were solved?
P.S. I'm far more knowledgeable with a Mac than I am with a Windows machine.

OpenComConfig fails if the port is already open by some other process. Com ports don't have sharing semantics in Windows as far as I know.
The first question is what other process wants to use the same port? Configure the processes so they don't contend for the same port.
The locked port will release (it's a resource to the process) if the owning process terminates for any reason, even if it doesn't release the port. Windows will clean up resources that were held by a terminated process.
So you can release the port by terminating the process holding it, but the situaution shouldn't be happening in the first place.
I get caught by this sometimes when I have the port open using a terminal emulator (e.g. hyperterminal or terminal) and try to run a CVI app that then wants the port. It can be confusing.

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COM-port problem with MSI BToes USB Dongle

I´ve had problem to get my Sony Ericsson T610 to work with my MSI BToes USB Dongle, so I tried to update my drivers. Now I have Microstar Bluetooth Software 1.4.2 build 10 but can´t get my Serial Port service to work. In Advanced configuration / Client Applications under "Bluetooth Serial Port" / "Properties", the only serial port I can choose is com0. Does anyone know how to fix this problem?
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Well, I think i´ve solved the problem. To get the com-ports to work I installed the software. Then I had a problem to get the phone to communicate with Sony Ericssons synk-software and outlook, but suddenly it worked and has worked since then. I have no idea what the problem was but now it works and I´m satisfied.
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K8N Neo4 Platinum - com port problem - XP SP2

I have fitted my tablet to the com port but when I restarted I got the message "New USB device found." and the com port is showing that it is being unused in the Device Manager.
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Sorted.

Help!! Modem/Com Port

Okay, I recently built my first PC and it has been running well, that is until I tried last night to get online.
I doubt it's a massive problem but I'm stumped. I'd really, really appreciate some help on this one.
I have a K7N2 Delta-ILSR, and I'm trying to run a Creative Modem Blaster V.92 PCI modem.
Right now my PC says it's on slot 5.
Anyway, whenever I try to connect to the net, via AOL (sucks I know, but I get it free where I live), the thing just doesn't dial. I think maybe it's a com port problem, but I know nothing about them. I bought the modem OEM, so no manual. It's showing up on Com Port 3, and the PC says ports 1 and 2 are 'In Use', though I don't know what with.
I initially had it on another PCI slot, installed it with the CD which came with it. And I had the problem. I moved it to where it is now, and before reinstalling with the CD the modem would dial, but was only recognised as a Generic modem. It also wouldn't talk with the network. So I reinstalled with the CD, and then I was back to square one.
Any ideas?
Here's my set-up:
K7N2 Delta-ILSR
Win XP Home
Athlon XP 2500+ (no o/c)
2x 256 PC3200 Corsair RAM
Radeon 9500Pro
Please some help would really be appreciated.

Hi,
Dial up modems can be a bitch to install (don't ask me why!). Try this: Power down and remove your Modem card then uninstall any drivers you've installed for it. Reboot then re-install the modem driver software (I assume you have drivers) then power down again and replace the modem card. Hopefully when you boot XP should detect your hardware and then install the drivers you've installed!
Also turn PNP OS off in the BIOS, and make sure APIC is enabled.
Axel

Problem with Com port

Hi guys. I have written a driver to communicate with a COM port (FTDI serial adapter). On the pc from which I'm writing now (windows XP) it works properly, but when I try to use the same driver on another pc (win 7) labview see the port but isn't able to comunicate . I tried also to use a software like Tera Term to see if the com works and trying the echo it works good...so I don't understand where the problem is on this w7 pc...
should I install some labview drivers on the w7 pc? I have already installed
NI run time installer
NI max
NI Visa run time

NI Serial won't help (its for NI serial cards not 3rd party USB-Serial bridges)
LabVIEW sees the VCP in Win7 but does not communicate: Works on XP: "Something" happens with Echo on from teraterm.
I'l guess either:
Wrong serial cable or settings and you are fooling yourself with the tereterm app and are seeing the echo only. With Echo on any character sent should be doubled.
Outdated FTDI Driver that does not support Win7.
Jeff

Problem with COM port opening

I made an application using COM port to dialog with a microcontroleur and i have some troubles with the opening of the port. i developed it under window XP pro and labview 6.1 and i have no problem when i launch my application on an XP PC having labview installed or on a window 98 PC without labview (just the runtime engine). But when i launch it on an XP pc with only the runtime engine, it seems to launch correctly but in fact, there is a problem with the COM port opening. The menu allowing to chose the port number is inactive and has no effect, like if the software wouldn't recognize the material port on the PC. And consequently, nothing happens when the dialog should start.
Thank tou for your precious help
Julien LEGRAND
French Natio
nal Institute for Sea Reseach

Is the VISA run-time engine installed? I don't understand why it would work on the win98 machine unless you have an older installation of it there.

Problem related USB Virtual COM PORT using PDA module 8.2 on Windows CE

Hi,
I am working on tranferring my application developed on LV 8.2 to a Single-board computer(SBC) running Windows CE 5.0. I am using LV PDA module 8.2 to achieve this. My problem lies in finding the port number of the Virtual COM Port on the SBC. I need to connect a USB RF modem from Maxstream to this SBC and to talk to it using VISA. I have installed the required drivers from Maxstream for converting the USB port to a virtual COM PORT. What is a way to figure out the COM PORT number on a Windows CE device? For a PC, I can see the COM PORT in the device manager but I do not know how to find this in Windows CE. . Also, I have tried using "VISA Find resource" function ..it works on a PC but I do not get anything in the Win CE device.
Any help would be much appreciated.
-Shruti

Shruti,
Is there a way to verify that the Maxstream driver successfully provides you with this virtual COM port? Essentially, what I mean is that if you did not have LabVIEW on this device, how does Maxstream prove that their driver is functional? Does it come with additional software that would be used to configure the USB RF modem? In any case, we would want to try opening any terminal program (like the hyperterminal) to determine what ports are listed for communication. I hope this is useful for you. Please post back when you are able to give this a try. Thanks,
Mike D.

Problem removing bluetooth stack / hidden devices / COM ports not released

Hi
Having problem completely removing Toshiba Bluetooth stack / hidden devices / com ports not released
I uninstalled Toshiba BT s/w...
But:
1) Toshiba BT hidden devices still appear and I can not remove (get error)
2) COM ports occupied by Toshiba BT not released (so they cannot be used by another BT stack) and still appear in registry
ex: friendly name Toshiba BT Port (COM4) still in registry
3) These unreleased com ports do NOT appear in device manager
Thanks

It seems that you still have some configurations which were not removed during the uninstallation.
This means that the resources can not be release, because those are still necessary in case of a
new installation of the stack.
The first I would try is the following:
- Install the latest Toshiba Bluetooth stack.
- Uninstall it. Ensure that you answer all questions with "yes" ! This means also the one which asks if all configurations should be removed.
- Reboot
- Check again

Port problem while running Run 'rmid ' command

Hi
I tried to run the follwoing command.
D:\Material\EJB\Ejb\3eCode\StatelessSession\HelloWorld>rmid -J-Djava.security.po
licy=rmid.policy
The response is as follows
Activation.main: an exception occurred: Port already in use: 1098; nested except
ion is:
java.net.BindException: Address already in use: JVM_Bind
java.rmi.server.ExportException: Port already in use: 1098; nested exception is:
java.net.BindException: Address already in use: JVM_Bind
at sun.rmi.transport.tcp.TCPTransport.listen(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport.exportObject(Unknown Source)
at sun.rmi.transport.tcp.TCPEndpoint.exportObject(Unknown Source)
at sun.rmi.transport.LiveRef.exportObject(Unknown Source)
at sun.rmi.server.UnicastServerRef.exportObject(Unknown Source)
at sun.rmi.registry.RegistryImpl.setup(Unknown Source)
at sun.rmi.registry.RegistryImpl.<init>(Unknown Source)
at java.rmi.registry.LocateRegistry.createRegistry(Unknown Source)
at sun.rmi.server.Activation.main(Unknown Source)
Caused by: java.net.BindException: Address already in use: JVM_Bind
at java.net.PlainSocketImpl.socketBind(Native Method)
at java.net.PlainSocketImpl.bind(Unknown Source)
at java.net.ServerSocket.bind(Unknown Source)
at java.net.ServerSocket.<init>(Unknown Source)
at java.net.ServerSocket.<init>(Unknown Source)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createServerSocket(Unk
nown Source)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createServerSocket(Unk
nown Source)
at sun.rmi.transport.tcp.TCPEndpoint.newServerSocket(Unknown Source)
... 9 more
--------------end of the response
I have created a file rmid.policy with the following deatils
grant {
permission java.security.AllPermission;
and kept the file rmid.policy along with the folder of the source code files.
When i ran the rmid command from the command propmt , i got the Above mentioned response.
Please suggest me a solution
Thanks and Regards
raju

Port already in use: 1098
Suggestion: turn off the other RMID running on that port or run this one on another port.
See this page for port setting params: http://java.sun.com/j2se/1.4.2/docs/tooldocs/solaris/rmid.html

Problem finding com ports on cF-2020

the "find devices" only shows the digial lines and LED's. I can't seem to setup or find the com ports on the cF-2020.

The Find Devices is used to find all of the device and channel items, it is not designed to find the COM ports on the cFP-2020 module. The COM ports are COM1, COM2, COM3 (RS-232), and COM 4 (RS-485).
To configure the ports, use the VISA Configure Serial Port VI.
Regards,
Aaron

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

Hello,
I am trying to use LabVIEW 2010 to control 4 Watlow temperature controllers on one COM port. 3 are Model 96 and 1 is an EZ zone controller. Each controller has a unique modbus address, and I am trying to read from and write to individual registers (such as closed loop setpoint) using shared variables. I am getting return data when reading (although the data appears to be invalid), but am unable to change the value in the register by writing. How can I be sure that the Modbus server is sending commands to the correct controller?
Chuck
Solved!
Go to Solution.

Peter,
Thanks for the reply. I have actually solved that problem. I realized that the Modbus server address has to be the same as the controller's Modbus address.
I have, however, run into another problem. Perhaps you could help me with that. I have a system with 4 Watlow controllers, 3 are series 96 controllers, one is PID only and 2 are ramping. The 4th controller is an EZ zone. I am using RS485 for communications and the controllers are all wired in parallel for communications and power.
I have set up 2 Modbus servers for 2 of the controllers.
This is the first I have ever worked with Modbus based communications. I have successfully programmed using the Modbus read/write VIs, and am wanting to move to shared variables. My questions right now revolve around addressing, Modbus I/O servers and COM ports. Specifically, at this point, I know the addresses need to match up between the server and the slave device (Watlow controller in my case), how many servers can I create and use on one COM port? If the number is limited, is there a way I can specify an address that I want the server to talk to? Will the broadcast mode work to request data values from the controllers?
I'd appreciate any information you can help me with, or if you could point me to some sort of concise 'How-To' for Modbus communication.
Thanks.
Chuck

GPS Error on F3507g & Windows 7 "The GPS NMEA COM Port is not available" x200

I have an X200 with a WWAN Card 43R153 (Ericsson F3507g) running Window 7.
The WWAN reliably connects to Vodafone but I can't get the GPS to work.
Device manager shows this port Enabled:-
Ericsson E3507G Mobile Broadband MiniCard GPS Port (Com8)
Driver Invogps.sys from Ericsson AB, Version 1.0.0.28 29/09/2008.
Thinkvantage GPS version 2.50 is also installed and Lenovo System Update says everything is up to date.
When I "Turn on GPS" or run 'Lenovs GPS" I get this message:-
The GPS NMEA COM port is not available. You need to check the following things.
- Another GPS application is using the COM port.
- COM ports is disabled. You can enable the COM port in the Device Manager.
Location and Other Sensors shows nothing installed.
I've tried deleting all the drivers and reinstalling but not luck.
Has anyone else had the same problem and found a solution. I can't think of anything else to try.
ThinkPad X200 7459-1P0

If you are running a Windows 7 Weather Gadget on your desktop, try shutting it down entirely and see if that changes your GPS "in use" problem.
Cheers,
Bill
I don't work for Lenovo

HyperTerminal sees a COM port but VISA does not

It should not be possible that HyperTerminal sees a COM port but VISA does not. Does anyone know why or have any ideas?
Here's some more info: I wrote a LabView (LV) program and deployed it (via the Application Builder) to some of our production department's PCs (some Windows XP and some Windows 7). We use it to set up products we design and manufacture through our device's USB serial port. The USB port is actually a virtual COM port (VCP) - a USB to Serial converter or "bridge". We have a custom driver for our device and since each device's USB bridge chip is programmed with a different serial number, every time we connect a new device to the PC the installer runs and assigns a new COM port number. This is so our customers can use multiple devices on a PC. Fine. On one of our production PC's we were close to COM900 ports (HyperTerminal sees only up to COM256) when suddenly Win7 would not allow any more. We were able to uninstall orphaned (non-present) COM ports from DeviceManager ("DM") by starting it from a command console (DOS window) with a special command-line switch, "set devmgr_show_nonpresent_devices=1" then "start devmgmt.msc" (I have this in a batch file). In DM View menu you can "Show hidden devices" and uninstall them as if they were connected. I've also tried uninstalling them the normal way when the device was actually connected. Either way, sometimes, not always, depending on the COM port number, after reusing that port number by installing a new device which picks up that old, freed-up number, LV VISA doesn't see it. In other words, when "Refresh" is clicked in the COM port VISA list box, any new devices installed should be and normally are seen. (Refresh is not needed if the application is started after the device's driver is installed. It is only need if the LV application is open with the new device is added.) However, HyperTerminal does see it and lists it in the Properties screen, the "Connect using..." list box. And the port works with HyperTerminal. (Of course we've tried rebooting after uninstalling and/or reinstalling the device, with the same results.)
When I've spoken to the NI Applications Engineers in the past about serial port issues (not about this problem) they have confirmed that if HyperTerminal can see the port then NI VISA should also see it. This is crazy. I am posting this in hope that someone can shed some light on this problem.
Thank you. -Ed

Good catch. Yes, we're using the Silicon Labs CP2102 and have created a "custom driver" installation package. Our new PCBs have a factory-programmed chip, so the PC reuses that COM port (COM3 on that PC). The problem is when we we re-program the CP2102 (setIDs exe) with our PID, and device strings (including the S/N), the PC runs our installer and assigns the next COM port number. I was hoping that maybe it would go up to 64K or something! Anyway, it surpassed COM256 but we ran into this problem when almost up to COM900.)
There is a registry entry for each SN device, which shows the assigned port. If we delete the key with regedit, the COM port database (don't know the file name) still has the port number. That's where Device Manager comes in. It seems to allow us to manually delete the ports, but it would take quite a while to delete 900. (I was trying to make a batch file for DevCon, but couldn't get it to see the HW ID of the devices in need of deletion.) So we tried manually deleting a few. After doing that Device Manager shows that Windows (and HyperTerminal) can reuse the port number when a new device (new SN) is installed, but, as you know from this post, VISA cannot see unless I manually add it in MAX.
I can't see how it has anything to do with the Silicon Labs driver. I might have to delete ALL of MY devices, then uninstall the driver files, reboot, then reinstall, as you suggested with the SiLabs driver. However, I don't see how VISA will now see these changes. VISA must have it's own database. That's what I thought deleting the ports in MAX would clear out, like a fresh install, but apparently not.
I've been through Silicon Labs' tech support on other issues and they've been able to help on some. I could run this by them.
BTW, have you noticed that Silicon Labs' chip and driver, while faster than NI's own "bridge" or serial-USB converter (I returned it because at $100 it's performance was worse than a $20 converter you can buy in Staples), is substantially slower than a real serial port? For example, our device can transmit 250 readings per second (a 12 byte string). A real serial port used with my LabView program can keep up, i.e.., graph & tabulate at that rate, but with a VCP we only get about 70 RPS. Same code. Can't figure this one out. They say the've tested the driver to 900 KB claimed. We're using 115KB here. Anyway, the VCP driver makes it look like a COM port which LV thinks it is. Why is it slower than a real port when the USB should be able to work almost 10 times faster than I'm using it (up to 1024 bytes per mSec per the full-speed USB spec, which SiLabs claims they verified)?
Anyway, I appreciate your help. Thanks! -Ed

Problems running Flash Builder 4.6 profiler

Hello,
I have a problem running Flash Builder profiler. When I click "Profile" it starts my web application, but nothing else happens inside Flash Builder itself - no new data appears in Profiler perspective, Flash Builder itself doesn't show any sign of doing something.
My mm.cfg contains the next line: "PreloadSwf=C:/flash builder workspace/.metadata/.plugins/com.adobe.flash.profiler/11/ProfilerAgent.swf?host=localhost &port=9999"
Additional details:
OS: Windows 7
Flash Builder version: 4.6
Tested web browsers: Firefox, IE 8 - the same problem in both of them
Flash player versions: ActiveX/Plug-in Version:11.7.700.169
I made sure that ProfilerAgent.swf indeed exists in the location defined in mm.cfg. In addition, I tried to change port 9999 to other ports (both in mm.cfg and in Flash Builder). I also verified that the location of ProfilerAgent.swf appears in trusted locations of Flash Player.
I would be very grateful if someone could help me to solve this problem.
Thanks,
Valeria

R Grieve wrote:
This sounds like something has gone wrong during installation. CSAR and CSLIBS references should be set up automatically during installation.
There should also be no need to import the Flex SDKs as CS Extension Builder 2.0 ships with them included. It won't do any harm though having the CS Flex SDKs imported.
Can you detail how you installed CS Extension Builder 2.0, please and where you obtained it from?
Here are the installation instructions I would recommend starting from a clean FlashBuilder 4.6 instance:
To install Adobe Creative Suite Extension Builder, download the ZIP file and unzip it into a root location (SDKRoot).
Install Extension Builder in Eclipse with Flash Builder or Flash Builder Standalone:
In Eclipse, choose Help > Install New Software.
In the Install dialog, click Add.
In the Add Site dialog, click Local... to browse to the SDK root folder or enter the URL of the update site.
Name the site CS SDK and click OK to confirm the changes.
Select the new CS SDK site in the "Work with" field.
-- Select all the Adobe Creative Suite Extension Builder components.
-- Click Next to confirm the selection.
In the Install Details review dialog, click Next to confirm that you want to install all the components listed.
Accept the terms of license agreements and click Finish.
Re-start Eclipse as recommended.
I obtained it from Adobe and installed it using the Help > Install software option, but without unzipping it. Maybe that was it.
Now I've done a clean installation and it works perfect. I did it with administrator permissions, don't know if it has anything to do with it, but I read it somewhere and did so just in case!
Thanks a lot!

COM port are not shown in my application

Hello,
there is a reason why com ports are not shown on a Xp Embedded Touch Panel?
I have to communicate through a serial port in my application but com ports are not shown in Visa Resource Name control ...
I have included all VISA related things in additional installer ...
Solved!
Go to Solution.

Ok, i checked functionality of COM ports with a non-National Instruments programs and all it's working. Only Labview apps cannot see them.
On another PC where the Labview app works if i look at installed Programs in NATIONAL INSTRUMENTS section i can see:
NI VISA RUN TIME 5.1.0
NI VISA 4.5 for Labview on Windows Mobile/CE
On the machine where there the problem under National Instruments SW i can see only:
NI system components
but i've added in additional installer section of the app installer all VISA related stuff...

Com Port problem running XP

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