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<== Date ==> <== Thread ==>

Subject: Re: cannot read ioc PVs with caget
From: Jiro Fujita <jiro.fujita@gmail.com>
To: "Antal, Szabolcs" <Szabolcs.Antal@evopro-group.com>
Cc: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Fri, 8 Sep 2017 13:01:08 +0200
If you are using my VM, then, the problem may be to do with the firewall.  Check if you have it running.  In principle, caget should work fine, but just a day or two ago, a student came asked me the same question, which might be a firewall issue.  

You can check that with the following (try as root):

/etc/init.d/iptables status

If it’s running, then, you can turn it off by changing status to stop.  


> On Sep 8, 2017, at 12:58 PM, Antal, Szabolcs <Szabolcs.Antal@evopro-group.com> wrote:
> 
> Hi all,
>  
> To start from the beginning. I’m quite new to EPICS, and I’m experimenting with its basics at the moment,
> by trying to set up a softIoc from scratch.
> I have an EPICS base of R3.14.12.5 already installed and the host OS is a RedHat linux.
>  
> My project structure is as follows:
>  
> myFirstIoc/
> ├──PowerSupplySimu.db
> └───st.cmd                           
>  
> When I do softIoc st.cmd the ioc is being initialized and is running, at least it seems like.
>  
> In the softioc shell I can list the records found in the PowerSupplySimu.db file.
>  
> epics> dbl
> PowerSupply1:ReadBack
> PowerSupply1:OutputValue
> …
> But when I open a terminal and trying to get the value of any of these PVs like:
>  
> caget PowerSupply1:Readback
>  
> I get the following response:
>  
> Channel connect timed out: ’PowerSupply1:Readback’ not found.
>  
> I was looking for resources on the web but managed to find nothing unfortunately.
> I guess I’m overlooking something or some setup is missing, or maybe I’m doing it completely wrong.
>  
> So what else do I need to get Channel Access work for me?
>  
> Any help would be appreciated!
>  
>  
> Yours truly,
> ____________________
>  
> Szabolcs Antal
> Software Developer
>  
>  
> <image003.png>
>  
> evopro systems engineering Kft.
> member of the evopro group
>  
> HU-4031, Debrecen, Köntösgátsor 1-3. Daniella Ipari Park
> www.evopro-group.com
> Mobile: +36 30 310 0367
>  
>  
> Ez az e-mail (ideértve annak bármely mellékletét) bizalmas információkat tartalmaz és jogi védelem alatt áll. Az üzenet kizárólag a címzett(ek)nek szól. Amennyiben Ön nem a küldemény címzettje, úgy a téves kézbesítést kérjük haladéktalanul jelezze e-mailben a feladónak és a teljes küldeményt helyreállíthatatlanul törölje. Amennyiben Ön nem az üzenet címzettje, kérjük ne készítsen másolatot az üzenetről, ne továbbítsa, ne tárja fel és ne tegye hozzáférhetővé azt más személy(ek) számára, továbbá semmilyen célra ne használja fel a bizalmas információt: ezen magatartások bármelyike a levéltitok megsértésének minősül.
>    
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RE: cannot read ioc PVs with caget Antal, Szabolcs
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cannot read ioc PVs with caget Antal, Szabolcs

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