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<== Date ==> <== Thread ==>
Subject: Re: Combing Two State Sets into One
From: Eric Norum <[email protected]>
To: Bradley Pietrzak <[email protected]>
Cc: [email protected]
Date: Thu, 22 Sep 2011 14:22:25 -0700
I'm not quite sure what you're asking.   If you're wondering, "Is there any way for a client to get at the list of record names?" then the answer is, "no, not directly".  Many sites have a standardized IOC startup sequence that contain something like:

###########################################################################
# Start IOC
cd "$(TOP)/iocBoot/$(IOC)"
iocInit

###############################################################################
# Standard post-startup commands
dbl >"$(IOC_INFO)/pvdata/$(IOC)"

###############################################################################


Then clients and other tools like IRMIS can get the list of names from that file.




Or, if you just want a record that contains the magnet number, you could have something like this in your startup script:

epicsEnvSet(MAG, "1")
.
.
.
.
dbLoadRecords("db/xxxxxx.db, "MAG=$(MAG)")
.
.
.
seq &sncExample, "mag=$(MAG)"


where the xxxxxx.db database file contains, say, a longin record with
field(VAL, "$(MAG)")




If you change the epicsEnvSet command to something like:
epicsEnvSet(MAG, "$(MAG=1")
you can even provide the MAG value from a shell environment variable at startup.



Hi everybody,

Thank you so much for all of your help. I cannot possibly explain how grateful I am.  I now can successfully use one state set to operate on many different PVs, but I do have one more question.  From outside the ioc, is there any way to determine what the value of mag is? In other words, is there some linux shell command that is equivalent to typing "seq sncExample, "mag=1"" in the epics shell?  My first thought is to have mag=1 when some PV (perhaps one called magSelect) is equal to 1, but I am having trouble doing this.
-- 
Eric Norum
[email protected]

References:
Combing Two State Sets into One Bradley Pietrzak
Re: Combing Two State Sets into One J. Lewis Muir
Re: Combing Two State Sets into One Bradley Pietrzak
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