Experimental Physics and
Industrial Control System

Till Straumann <[email protected]> · Wed, 04 Dec 2002 14:12:18 -0800

Hi.
I discussed this briefly with Marty at JLAB. He suggested
I should post to the list. I was not sure whether the
EZCA library is supported under 3.14.
Here's my problem:
I have put together a CA interface for SCILAB (a nice open
source tool a la matlab) who builds on top of libezca. Works
fine with 3.13.
Using 3.14_beta1, I can access (e.g. read using ezcaget) a PV
into SCILAB without problem. An attempt to access the same PV
a couple of minutes later fails, however, giving the following
error:
CA.Client.Exception...............................................
    Warning: "Virtual circuit disconnect"
    Context: "134.79.35.35:5064"
    Source File: ../cac.cpp line 1809
    Current Time: Wed Dec 04 2002 13:48:18.219267000
...................................................................
Strange enough, if I repeat the read command for a couple
of times, it works again. Let some time expire and it again fails.
And so on.
Does somebody have an explanation or, yet better, a fix?
-- Till

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System