[time-nuts] GPIB, Proloigix, cables

[Jim Lux]

Connectivity to the prologix from host isn't the problem.    The challenge is on the gpib side. It was almost working, so I was wondering if there was a systematic way to test.  Maybe getting a second prologix to serve as an instrument emulator?  Cheap if it saves hours debugging a rack full of gear.   

Actually.  I've been thinking about going to a prologix per instrument model.  Then it's just an ip address per instrument

On Jan 27, 2013, at 8:33, "Prologix" <support at prologix.biz> wrote:

> Hi Jim,
> 
> We recommend starting with the procedure described in the FAQ to verify
> connectivity:
> http://prologix.biz/gpib-ethernet-1.2-faq.html
> 
> Regards,
> Abdul
> 
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Jim Lux
> Sent: Sunday, January 27, 2013 8:16 AM
> To: Discussion of precise time and frequency measurement
> Subject: [time-nuts] GPIB, Proloigix, cables
> 
> I spent a couple frustrating hours debugging a test setup with programmable
> power supplies and counters (to make automated measurements of freq/Vtune on
> some VCOs, as well as "Vsupply pushing")
> 
> I'm using something hacked from the sample Python code  and the Prologix
> Ethernet device (which has been wonderful for the past few years), but this
> time it was a positive ordeal.  I would get timeouts and error messages back
> from the devices.
> 
> Turns out that I had one bad cable and one with a little piece of paper that
> had gotten into the connector when mating it.
> 
> So.... is there some sort of systematic test scheme using the Prologix that
> can be used to check out a setup?  Or using John Miles's Prologix
> Configurator to exercise it.
> 
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