Re: Tektronix 3014 Tracing Problem

[Eric Norum <eric@norum.ca>]

Is the scope triggering?

On Dec 7, 2012, at 5:35 PM, Trevor Downer <downtrev@isu.edu> wrote:

> Hello again!
> 
> We were able to get the cartesian plot function to work.
> 
> I attached a screenshot of the display after our success.
> 
> Thanks for your help with that!
> 
> The problem was with the MEDM installation, so I re-installed MEDM.
> 
> We were able to make a cartesian plot correctly using another application.
> 
> However, we still are not getting the trace data from the oscilloscope.
> 
> I attached screenshot is of the result that I get when I run the caget
> command on one of the wave form records.
> 
> This is the same result that I get for the other waveform records as well.
> 
> We tried changing the EPICS_CA_MAX_ARRAY_BYTES variable in the
> environment, the envParams, and the st.cmd script from 10000 to
> 100000000, but to no avail as we are still not able to get a trace.
> 
> We also tried changing the NELM field in the waveform records from
> 10000 to 100000 and bigger, and we had the same result.
> 
> Any help that you can give us would be greatly appreciated!
> 
> Thanks
> 
> 
> 
> 
> 
> 
> 
> On Fri, Dec 7, 2012 at 12:10 PM, Hartman, Steven M. <hartmansm@ornl.gov> wrote:
>> 
>> On Dec 6, 2012, at 11:51 PM, Yujong Kim wrote:
>>> We can control all main functions of the scope from EPICS MEDM OPI panels without any problem.
>> 
>> Hi Yujong--
>> 
>> To isolate whether this is an medm configuration issue or a CA configuration issue (e.g., EPICS_CA_MAX_ARRAY_BYTES), try to caget the waveform from the computer running medm.
>> 
>> --
>> Steven Hartman
>> hartmansm@ornl.gov
>> 
>> 
>> 
> <chan2ScaledWaveWF.png><oscope_with_cartesian.png>

-- 
Eric Norum
eric@norum.ca