HP 9000/226

From: joe <rigdonj_at_intellistar.net>
Date: Thu Aug 9 10:42:56 2001

At 04:44 PM 8/8/01 -0400, you wrote:

>Well, he said it could also be used for controlled shutdown in case of a
>power failure.


     Right. I should have made that clearer. The way it works is that AC
power lose is detected and generates an error condition that can be
detected using an "On error xx. Goto yyyy" type statement in the user
program. Upon meeting that condition, the user can have the program jump to
any desired subroutine that does what ever file saves and shut down
procedures are necessary. Obviously the battery must keep the machine
running for some period of time for this to happen so it is a sort of UPS.
The manual doesn't say how long the battery will keep the machine running
but clearly they expect you to save your data and shut the system down as
quickly as practicle.

     Joe


>Peace... Sridhar
>
>On 8 Aug 2001, Iggy Drougge wrote:
>
> > joe skrev:
> >
> > >> > The battery in the bottom is for a battery operated real time
> clock
> > >> >and for use in a controlled shut down in the event of a power lose. It
> > >> >won't run the computer for more than a few seconds. It's optional and
> > >> >it's sort of rare, I've only seen it in a couple of machines. FWIW
> it was
> > >> >only available in the 9826 (aka 9000 226) and 9836 (aka 9000 236) I
> think
> > >> >both of th em machines that I saw it in were 9836s.
> > >>
> > >>The compartment is far too big to operate any non-atomic RTC. And it
> > >>features a warning level about the high voltages. It measures
> something like
> > >> 20?15?4 cm.
> >
> > > It may be oversize but that's what it's for! I have the docs for it
> > >somewhere.
> >
> > Admit it, Joe, you're just pulling my leg. A battery that big for an RTC?
> >
> > --
> > En ligne avec Thor 2.6a.
> >
Received on Thu Aug 09 2001 - 10:42:56 BST