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<== Date ==> <== Thread ==>
Subject: Block CAPUT to not be able to modify PV value
From: Adrian Martinez via Tech-talk <tech-talk at aps.anl.gov>
To: EPICS tech-talk <tech-talk at aps.anl.gov>
Date: Wed, 14 Jul 2021 15:59:31 +0200
Hello, 

I need to block the setting function for some PVs. I was using SDIS and DISV fields:

record(ao, "$(user):UCrTcrLimitUsSet")
{
field(DTYP, "asynInt32")
field(OUT,  "@asyn($(PORT),$(ADDR),$(TIMEOUT))ucr_tcr_us")
field(VAL,  "0")
field(EGU,  "us")
field(HOPR, "10000")
field(LOPR, "0")
field(DRVH, "10000")
field(DRVL, "0")
field(SDIS, "$(user):StartUpOn.VAL CP MS")
field(DISV, "0")
info(autosaveFields, "VAL")
}

record(calc, "$(user):UCrTcrLimitUsRd")
{
field(CALC, "((A / 10^-6) / 300000000)")
field(INPA, "$(user):UCrTcrLimRd.VAL CP MS")
field(EGU,  "us")
field(SDIS, "$(user):StartUpOn.VAL CP MS")
field(DISV, "0")
}


This only works for the graphical user interface CSS (I am not able to modify the Pv value in the gui) but, if I use CAPUT, I can modify the PV value. 

Is there any way to completely block setting function?

Thanks in advance, Adrián.
--
Adrián Martínez
Embedded Software Engineer
Seven Solutions
 
Mail: adrian.martinez at sevensols.com
www.sevensols.com

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Replies:
Re: Block CAPUT to not be able to modify PV value Johnson, Andrew N. via Tech-talk
Re: Block CAPUT to not be able to modify PV value Mark Rivers via Tech-talk
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