- RE: Problem with "Serial to USB Adapter"
- Posted by FEM on October 28th, 2005
"Robert Lie" wrote:
> Dear All,
>
> I have several computers have must be connected with "Digital Scale" and
> "Barcode Printer", and both devices must be connected by using RS232
> comm port.
> Since a computer merely have 1 comm port, hence I use "Serial to USB
> Adapter" as additional comm port.
> So the problem with lack of comm port is solved, but another problem comes.
> The problem now is sometimes the connection between "barcode Printer"
> and computer is broken due to "Serial To USB", and I have to plug off
> the USB and plug in again to the USB Port.
>
> Pls someone give idea how to solve this problem?
>
> Thanks
>
> Robert Lie
>
***
I don't have the solution but i I suspect is not a hardware problem. I have
exactly the same problem with 2 different USB to serial converters connecting
an scale sending continuously data to the PC. In my case the problem is in
Windows XP but not in W2000.
I'm very interested in a solution too.
Federico
- Posted by Miguel Gimenez on October 28th, 2005
FEM wrote:
> "Robert Lie" wrote:
>
>
>>Dear All,
>>
>>I have several computers have must be connected with "Digital Scale" and
>>"Barcode Printer", and both devices must be connected by using RS232
>>comm port.
>>Since a computer merely have 1 comm port, hence I use "Serial to USB
>>Adapter" as additional comm port.
>>So the problem with lack of comm port is solved, but another problem comes.
>>The problem now is sometimes the connection between "barcode Printer"
>>and computer is broken due to "Serial To USB", and I have to plug off
>>the USB and plug in again to the USB Port.
>>
>>Pls someone give idea how to solve this problem?
>>
>>Thanks
>>
>>Robert Lie
>>
>
> ***
> I don't have the solution but i I suspect is not a hardware problem. I have
> exactly the same problem with 2 different USB to serial converters connecting
> an scale sending continuously data to the PC. In my case the problem is in
> Windows XP but not in W2000.
> I'm very interested in a solution too.
>
> Federico
In the device manager, under the energy management of the USB, you can
uncheck the "Allow Windows to shutdown the device when unused" (or
similar, my OS is in spanish).
Regards
Miguel Gimenez
- Posted by FEM on October 28th, 2005
"Miguel Gimenez" wrote:
> FEM wrote:
> > "Robert Lie" wrote:
> >
> >
> >>Dear All,
> >>
> >>I have several computers have must be connected with "Digital Scale" and
> >>"Barcode Printer", and both devices must be connected by using RS232
> >>comm port.
> >>Since a computer merely have 1 comm port, hence I use "Serial to USB
> >>Adapter" as additional comm port.
> >>So the problem with lack of comm port is solved, but another problem comes.
> >>The problem now is sometimes the connection between "barcode Printer"
> >>and computer is broken due to "Serial To USB", and I have to plug off
> >>the USB and plug in again to the USB Port.
> >>
> >>Pls someone give idea how to solve this problem?
> >>
> >>Thanks
> >>
> >>Robert Lie
> >>
> >
> > ***
> > I don't have the solution but i I suspect is not a hardware problem. I have
> > exactly the same problem with 2 different USB to serial converters connecting
> > an scale sending continuously data to the PC. In my case the problem is in
> > Windows XP but not in W2000.
> > I'm very interested in a solution too.
> >
> > Federico
>
> In the device manager, under the energy management of the USB, you can
> uncheck the "Allow Windows to shutdown the device when unused" (or
> similar, my OS is in spanish).
>
> Regards
> Miguel Gimenez
>
The problem is that the communication is broken while is working. Then if
you close and reopen the port some times the communication is restored but
sometimes not, and is necessary to restart the pc.
