Experimental Physics and Industrial Control System
|
Trevor,
There are two separate issues that you are dealing with. The SDDS
script needs the SDDS package installed to display the waveforms
and is not needed for the MEDM display. I added these SDDS scripts
to produce a cleaner and more detail display of the plots for our
technicians here at the APS, I included them as an example only.
Sorry for the confusion.
The MEDM display issues may be that EPICS_CA_MAX_ARRAY_BYTES
environment variable is not set high enough. This variable needs
to be set on both the IOC and on the computer your using. For the
TDS3000 at 10k record size, you will needed to set this variable
to 80000 to accommodate the waveform being a "float" data type.
The updated release for this support will have the option of
selecting between 10k and 500 data points, which means this
variable could be set as low as 20000.
I'm not an expert when it comes to running EPICS on a Windows
machine, but the blue section in the MEDM display looks like it
might be a EPICS_CA_MAX_ARRAY_BYTES
environment variable issue. On a UNIX/Linux system I would see
four black squares, one for each waveform, but they would be all
blank if this variable is set to low. The blue section I see in
your post is the back ground color I chose for this section, so
I'm puzzled as to why the "Cartesian Plot" objects are not
visible, maybe it a Windows thing. Window experts please respond.
On a side note, I will be releasing a long over due update to this
support by February, which has improvements to reliability issues
with the TDS3000 series and enhanced waveform handling for the
TDS5000 series. Also, a clarification on the use of the SDDS
utilities has been updated.
Keep me updated so I can add this issue to the new release.
Thanks,
Nick D.
On 12/6/2012 6:00 PM, Trevor Downer wrote:
Greetings and salutations!
I am a student at Idaho State University working on a project to
control a Tektronix 3014 oscilloscope, using EPICS, for the Idaho
Accelerator Center.
We have successfully installed EPICS and the necessary extensions to
communicate with the TDS3014 oscilloscope. Using medm we cannot see
the waveform tracings, we can however see the tracings from a web
browser, however its refresh rate is quite slow.
There seems to be a problem when I click on the SDDS Plot button, medm
outputs a message in the terminal reading:
"medm/trace10k: line 8: [: T: integer _expression_ expected
Usage: trace [1-4][HV or LL]<CR>\n"
Attached is a screen shot of the traceless oscilloscope in medm and
the trace10k file where there seems to be a problem.
I would greatly appreciate any help to fixing the tracing problem,
thank you very much!
-Trevor Downer
|
- Replies:
- RE: Tektronix 3014 Tracing Problem Mark Rivers
- References:
- Tektronix 3014 Tracing Problem Trevor Downer
- Navigate by Date:
- Prev:
RE: Registering DBD files and iocshRegisterCommon michael.abbott
- Next:
RE: Tektronix 3014 Tracing Problem Mark Rivers
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
<2012>
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
- Navigate by Thread:
- Prev:
Re: Tektronix 3014 Tracing Problem Nicholas P. DiMonte
- Next:
RE: Tektronix 3014 Tracing Problem Mark Rivers
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
<2012>
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
|
ANJ, 18 Nov 2013 |
·
Home
·
News
·
About
·
Base
·
Modules
·
Extensions
·
Distributions
·
Download
·
·
Search
·
EPICS V4
·
IRMIS
·
Talk
·
Bugs
·
Documents
·
Links
·
Licensing
·
|