> > Not quite a year ago we created a custom system for
> > sequencing power to a
> > piece of industrial equipment that has lots of individual DC
> > supplies and
> > other things that need to be separately switched.  We
> > deliberately kept it
> > general so that it would be applicable in a variety of
> > applications.  It has
> > switched AC outputs, digital outputs, digital inputs, and configurable
> > analog window detection inputs for sensing of DC power supply
> > outputs.  It
> > can be controlled from a host via a serial line, but the sequence of
> > operations can also be programmed into the unit and saved in
> > EEPROM.  The
> > unit also reports current status, operations, and failures
> > back to the host.
>
> Sounds pretty cool but more than I need.
> Do you sell these? How much?

Yes, we could sell these.  We don't have a standard price because I imagine
there would be customizations desired for different applications.  If
someone wanted a bunch of these exactly like we've already made them, the
price would probably be in the low K$.  This may seem like a lot, but this
particular configuration comes with one rack mounted box where all the
switching occurs, a separate "user panel" box which has the ON and OFF
buttons and status lights, a 50 foot cable between the two boxes, an RS-232
cable to the host computer, and a bunch of host computer software.  There
are also other features I didn't mention, like two gel cells for emergency
lighting, and circuitry and accompanying hardware to test and verify just
about everything this box can do.  For example, shorted or open relays can
be detected.  Of course lots of attention to safety, which includes UL, CSE,
220/110 volts, 50/60 Hz, etc.


*****************************************************************
Olin Lathrop, embedded systems consultant in Devens Massachusetts
(978) 772-3129, olin@cognivis.com, http://www.cognivis.com

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
use mailto:listserv@mitvma.mit.edu?body=SET%20PICList%20DIGEST