You left out a lot of details, like what OS your PC is running, Assuming
it is Windows XP or greater, you may be able to juggle the assigned com
port.
If you are using a USB/serial adapter, be sure it is plugged in so it
shows on the devices list.
You need to open Device Manager. One way is Start/settings/Control
Panel. If it is Win 7+ Device Manager should be in the list. If XP,
select System, the Hardware tab at the top, then the Device Manager
button. -- I don't have a Win 8 machine; I assume it is the same as Win 7.
Find your serial device under 'Ports (Com & LPT)'. If you are not sure
which one and it is a USB adapter, you can unplug it and see which one
goes away.
Double-click on the one you want to change. In the window that opens,
select the Port Settings tab at the top. You'll get a window with the
baud rate, etc. Select the Advanced button. Then in the lower left of
the window is the assigned Com Port. Click the pull-down triangle button
and you'll get a list where you can select a different Com Port number.
If all the ones you want are flagged with (In use), you may have to back
out and try to find a listing for the device that is using a low Com
port and select it to change its number higher to free the one you want
to use. I'm not sure what happens if you try to change to a port that is
(In use). Maybe it tries to work it out for you. I haven't tried it.
I'd suggest Com 4 or Com 2 as your best choices.
So I don't have an exact answer. It depends on what is using the lower
numbers now, Hopefully you can rearrange them using this method to find
something that works.
On 1/4/2015 7:50 AM, James Robbins wrote:
My new old HP58503A wants to connect to my PC on Com 1-4. Other PC devices are
already using those 4 Com ports.
Is there any way to connect it to a Com port other than one of those 1 to 4?
I currently use an Edgeport USB-to-Serial Converter which works very well to
communicate with the PC and to assign Com ports to my various GPS units. But,
as far as I know, the chosen Edgeport Com port must fall within the range of
Com ports which for which the device is designed.
If this has been answered, please point me to the discussion. Many thanks.
And, Happy New Year to all, with wishes for a more peaceful (and timely -
couldn't resist) year.
Jim Robbins
N1JR
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