[time-nuts] LH Z3801 and XP stalling

paul swed paulswedb at gmail.com
Wed Dec 14 01:21:10 UTC 2016


Mark
I agree with the 3 seconds thats what I see with HP sastat, gpscontrol, and
z38XX which are all working fine. So your saying the z3801 is going to
sleep or is it Heather?
How might I change Heather to get around the issue please?
Thanks
Paul


On Tue, Dec 13, 2016 at 4:27 PM, Mark Sims <holrum at hotmail.com> wrote:

> I suspect that your system is set up to go to sleep.
>
> If that happens Heather won't see the response to the last message it
> sent.   For SCPI receivers, Heather polls the device for a new piece of
> information every time it gets a response.  The requests alternate between
> the time code message and some receiver status value.  At xx:xx:33 Heather
> requests the syst:stat page which takes three seconds to come in.
>
> No response to a request? No new request sent out...  If a new  response
> is not seen within a receiver-dependent timeout (5-20 seconds for the
> Z3801A), Heather attempts to restart communications, but a sleeping system
> borks that.
>
> ------------------
>
> >   So pretty excited about LH running a Z3801. But what I am seeing is a
> consitent stall roughly 45-50 minutes in.
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