Re: SPC-type DRO scale tale

Halle;

No, I'm not sure that the "readers" stop sending data when the display goes
off. Actually, I hope they DON'T stop sending data.

They probably lose a count or two when they do "wake up" from a genuine power
off, and it would be bad to have something set up, then left alone long enough
to allow the readers go to sleep, then lose counts as I resume machining.

So if the electronics stay alive when the LCD is off, that's just fine with
me.

Remember, I'm not powering them via batteries, so I'm not concerned about
power consumption.

Also, it is possible that the readers "steal" power from the SPC lines or
sense the fact that something is connected to the SPC lines. In either case,
the readers may elect to continue sending data so long as there is something
connected up.

Alan

> From: <halle@...>
> Subject: Re: SPC-type DRO scale tale
>
> I've had the same problem with auto-poweroff on two off my scales (300mm, both bought at the same time from the same company). One off the scales power-on when you move the slider but not the other one, but both off them continues to output data via the SPC output even when they are "off". Are you shore your SPC dies when the display on the scale goes off?
>
> /Halle

--

Alan Rothenbush | The Spartans do not ask the number of the
Academic Computing Services | enemy, only where they are.
Simon Fraser University |
Burnaby, B.C., Canada | Agix of Sparta