Thanks to a reply from Angus the 53131A is sending data every sample
now!!!
"Something to check - in the 'Utility' menu, if the HP-IB is set to
'Talk' rather than a numeric address, it does just what you describe
and only sends data every few seconds.
Angus.
Thanks
Corby
___
Hi
It’s quite a bit better than that if you speed up the i/o (higher baud rate etc)
Bob
> On Dec 3, 2016, at 3:05 PM, Scott Stobbe wrote:
>
> The 53131A is approximately 0.9 Sa/S with a 1 Sec Gate time. With 0.1 s
> gate time things get really ugly... His issue is not gate time his setup
> wor
The 53131A is approximately 0.9 Sa/S with a 1 Sec Gate time. With 0.1 s
gate time things get really ugly... His issue is not gate time his setup
works with print turned off.
On Sat, Dec 3, 2016 at 2:42 PM, Bob Camp wrote:
> Hi
>
> Ok, it’s 0.9992 samples per second … I guess that is so close
Hi
There may be some deep dark setting in there that would require a pacing
process. If it’s there, I’ve never ever run into it. I’ve been pulling data out
of 53131’s and 53132’s for as long as they have been around. Not all of it
has been by serial, but some of it has. I’ve likely used every ve
Hi
Ok, it’s 0.9992 samples per second … I guess that is so close to
5.0 seconds and so far from 1. seconds that it explains
the issue
Bob
> On Dec 3, 2016, at 2:01 PM, Scott Stobbe wrote:
>
> Well, that's only true if your counter has zero dead-time... I know you
Scott,
Tried reversing connections and the count goes from 4ms to 900+ms which
is correct.
update goes from about 3 seconds to about 5 seconds with them switched.
So the connections were correct with the 4ms reading.
Found out that the RS232 is talk only so it would not need any commands
or fee
Well, that's only true if your counter has zero dead-time... I know you
know this, 1 second gate time will give slightly less than 1 Sa/S.
On Fri, Dec 2, 2016 at 1:15 PM, Bob Camp wrote:
> Hi
>
> With a 1 second gate time, you will get one data output per second with the
> settings you have desc
I have a HP53131A and don't have this issue, the only thing I can think of
is that you have the cables swapped i.e. the start edge on ch2 and stop
edge on ch1.
I have firmware REV:3703, If there are any settings you want me to try I am
happy to help.
On Sat, Dec 3, 2016 at 12:47 PM, wrote:
> I'
I've tried all the parameters and the update rate still drops to about
once every 3 seconds when I turn print on!
You still see the 1pps strobing the input channels every transition even
with print on.
I was using just pins 2, 3 and 5 on the rs232 and switched to a "full"
cable with no improvement.
Hi
I don’t typically use 50 ohms with logic signals, but other than that I
don’t see much different between what you describe and what “just works”
for me on multiple 53131’s and 53132’s. About the only weird thing I can think
of would be a baud rate so slow that the string does not complete. I
d
I reconfigured for TI with +.7V level 50Ohm and I get a good count.
With a TI of around 43milliSec between two 1pps signals the display is
updating every second.
However if I turn print on the display update slows way down and no
longer displays consecutive counts!
I know I had this working once!!!
Hi
With a 1 second gate time, you will get one data output per second with the
settings you have described. I suspect there is something else wrong with your
setup. The same settings will work for 1 pps and give you one reading output
per second. The input level should have no impact as long a
Hi,
I have not played with my 53131A RS232 for a couple years and have a
question.
I want to configure it to "talk" to Hyperterminal so I can log some
readings.
I did the 5 items to configure it:
HW pacing (disabled)
print on
baud rate (19200)
parity
SW pacing (none)
with a 5Mhz input I only get
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