Connect Usb Device To Serial Computer Ports
I need to find the 'USB serial port COM number' of my Dell Inspiron 7386. S7-200 pc access v1.0 sp1 download free. I went to the 'Device Manager/Ports' and then searched.
How would I go about viewing a list of COM ports in use without the use of Device Manager?
I don't want to install any software either. Is there a possible way to do this through the command line?
Peter Mortensen- I can imagine though that it is a usb port that provides a terminal access. This option makes is possible for you to connect multiple physical ports to a single virtual port you also have the option of assigning the same name to all the ports, and set up a switcher to this virtual rs232 port in via the appropriate app.
- Laplink connections can be made over 3 types of cables; Serial, Parallel and USB. Certain operating systems do not support each cable type, however. For a complete listing of Laplink-brand cable options (including Windows compatibility), please Technical Document 708: Which USB Cable do I Have?
7 Answers
In the command prompt use
mode
Used without parameters, mode displays all the controllable attributes of the CON (console) and the available COM devices (and LPT as well).
Accepts /? switch for basic help:
mode /?
In the command prompt use:
OR
In PowerShell:
OR
Hope this helps.
vembutechvembutechI know the question has been answered, but this is another method.
In command prompt, use:chgport
in windows Vista and up. Lists your ports and which device they are.
Using mode most of the time I don't see the devices that are not connected.
I prefer to use this solution with Python:
So I can see anything plugged in even if the connection is closed.
serial.tools.list_ports is from package pyserial.
wmic https://docs.microsoft.com/en-us/windows/desktop/wmisdk/wmic is a windows command line utility to get system information.
If your serial port is virtual created by some driver through USB connection, use this example to get details about these serial ports.
You can also run the following from cmd.exe prompt
And here is an open source utility to do the same and more:https://todbot.com/blog/2012/03/02/listcomports-windows-command-line-tool-for-usb-to-serial/
The snippet below lists serial ports into the $PORTS variable
PORTS=/c/Windows/System32/mode.com grep Status.*COM awk '{ print $4 }' sed s/://
echo -n 'Programming (echoing) ports: 'for aa in $PORTS; do echo -n $aadoneecho '
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John H4913,
Thank you for visiting the Microsoft Answers community forum.
When you say you have tried to change the port and it errors out, where are you trying to change the port - in the software that came with your device or in device manager?
Have you enabled the com ports you want to use in the BIOS or checked to be sure they are enabled? Check with Dell if you don't know how to get into the BIOS to enable the COM ports.
Find out what COM port number the device has assigned to its virtual COM
port - it may be a higher port number than the device or its software will
support.
Read the manual that came with the COM to USB port adapter to see how to get
and change the port number it's using. You may also be able to change it by
going to Device Manager, expanding the Ports section, finding your device,
right-click it and select Properties, then look at the Details tab and maybe
an Advanced button if one is located there.
Look in Device Manager for the serial port that gets added when you plug in the USB adapter. It'll say there what com port number you need in PuTTY.
Open Putty. For USB, you need to plug in the USB half for the computer to think it has a serial port. Change the COM port number from COM1 to the COM# that was assigned by Vista by going into Device Manager and looking at the Ports and seeing what number Vista assigned to the device plugged in to the USB port.
I hope this information helped resolve your issue. Let us know if you need further assistance.
Thank you,
Connecting Usb Device To Computer
Microsoft Answers Support Engineer