Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Tue, 7 Apr 2009 15:06:17 -0500

On Monday 06 April 2009 19:37:30 Emmanuel Mayssat wrote:
> I have noticed oddities with my longout records.
> Particularly when I use the soft Channel record.
>
> record(longout, "myLO") {
> 	field(VAL ,"100")
> 	field(SCAN, "Passive")
> 	field(DTYP, "Soft Channel")
> }
>
> Now if I create a medm text entry attached to this PV, and attempt to
> modify the PV, it updates but not as expected. For example, if I enter
> the value 10, the PV is updated to -11100023 (or something like that)
>
> I am using medm 3.1.1 compiled against EPICS 3.14.9.
>
> I have other longout records which are not "Soft Channel".
> They correctly update with the same medm widget.

What is your target architecture, for both the client and server?  It is known 
that IOCs built against Base before 3.14.10 do not work properly on 64-bit 
architectures, so if you're running this on linux-x86_64 you should switch to 
the 32-bit linux-x86 target.  The CA client code does work properly on 64-bit 
systems though, it's just the IOC that's faulty.

With 32-bit linux-x86 clients I only see Dirk's issue when using old versions 
of caget and caput (not from Base, the ones from extensions/src/EzcaScan) and 
I suspect that's a due to a bug in ezca or in the caget and caput programs 
since all the other clients I've tried (including MEDM and Probe) do show the 
correct value for a longout record.

Is the "-11100023" number you gave above correct?  If not, please post the 
exact number that you get when you put 10 into the PV.

- Andrew
-- 
The best FOSS code is written to be read by other humans -- Harold Welte

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System