Experimental Physics and
Industrial Control System

John Sinclair <[email protected]> · Thu, 28 Jun 2007 12:43:19 -0400

One simple-minded approach I have recently taken works with Kay's
channel archiver.
I made a simple mod to the archiveExport utility so that the command
ArchiveExport -snapshot -format decimal -precision 6 -start "06/27/2007
00:00:00" -end "06/27/2007 00:00:00" /a/20070614_015041/Arc
t:esx_t-2:volt_ctl
produces the following kind of output:
#06/26/2007 07:16:50.242633762
caput t:esx_t-2:volt_ctl "2.930956"
The mod makes the -snapshot option available, so don't try this with the
current

distribution.
----------------
So, then I build a file from a list of pvs like the following:
echo "Timestamp: $1"

echo "Archive: $2"

echo "Output file is: out"

ArchiveExport -snapshot -format decimal -precision 6 -start "$1" -end
"$1" $2 t:h2_c4_L2 >> out

ArchiveExport -snapshot -format decimal -precision 6 -start "$1" -end
"$1" $2 t:h2_c11_L2 >> out

ArchiveExport -snapshot -format decimal -precision 6 -start "$1" -end
"$1" $2 t:h2_c16_L2 >> out

.

.

.
-----------------------------
The saved values are restored by executing the output file, as shown below.
./out
-----------------------------
OK, not very nice, but an integrated utility to do all this in a
straightforward manner would be

great to have.
- John Sinclair

Andrew Johnson wrote:

Matthias Clausen wrote:

Is there a volunteer to compute a list of 'problems to be solved'
versus 'tools to be used'?

At least I would add our tools to that list.
Could this be a wiki page at APS? - Andrew??

Sure, that would seem appropriate - if anyone doesn't already have a
Wiki account they should email me to have one created. I created an
initial page with a pointer to the SynApps Autosave package for
starters, linked from the HowTo Documents wiki page, found at

http://www.aps.anl.gov/epics/wiki/index.php/What_PV_Save_and_Restore_Tools_are_available 

Note that there are a number of save/restore tools listed on the Soft
Support page at http://www.aps.anl.gov/epics/modules/soft.php - this
would be a good place to start for more tools.
- Andrew

smime.p7s

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System