Experimental Physics and
Industrial Control System

Dear EPICS users,

We installed Epics base 3.14.12.3 on a computer using Scientific Linux.

Then we managed to create, build and run the IOC example application included with the EPICS base.

Now, we would like to create one CAClient to access the PV.

Then we configured the /etc/profile file and added the necessary lines:

EPICS_HOST_ARCH="linux-x86_64"

export EPICS_HOST_ARCH

EPICS_BASE=/opt/epics/base-3.14.12.3   

export EPICS_BASE     

PATH=$PATH:/opt/epics/base-3.14.12.3/bin/linux-x86_64

EPICS_CA_AUTO_ADDR_LIST=YES (tried this too, but it did not work)                           

export EPICS_CA_AUTO_ADDR_LIST

EPICS_CA_ADDR_LIST="192.168.163.97 192.168.163.255"

export EPICS_CA_ADDR_LIST

and we am unable to reach any PV in the example app included in Epics.

We am running the example app by running st.cmd in terminal, we can see the PVs inside Iocshell but when I try to connect the PV to a graphical text monitor in MEDM, the Graphical Object is not connected to the PV inside the IOC.

PV Info inside MEDM says:

TYPE: TYPENOTCONN

HOST: <disconnected>

The PV name is correct, we think: rootHost:ai1.VAL and tried rootHost:aiExample1.VAL and they are not receiving any values from the IOC.

When we try to run caExample we get the following errors:

[root@Epics O.linux-x86_64]# ./caExample rootHost:ai1.VAL

CA.Client.Exception...............................................

    Warning: "User specified timeout on IO operation expired"

    Context: "ca_pend_io failure"

    Source File: ../caExample.c line 20

    Current Time: Tue Aug 19 2014 14:54:46.378283619

..................................................................

CA.Client.Exception...............................................

    Warning: "Virtual circuit disconnect"

    Context: "ca_get failure"

    Source File: ../caExample.c line 21

    Current Time: Tue Aug 19 2014 14:54:46.378688325

..................................................................

CA.Client.Exception...............................................

    Warning: "User specified timeout on IO operation expired"

    Context: "ca_pend_io failure"

    Source File: ../caExample.c line 22

    Current Time: Tue Aug 19 2014 14:54:51.378812388

..................................................................

rootHost:ai1.VAL 0.000000

We thank you in advance for your support.

Best regards,

------------------------------

Bertrand DE BOISDEFFRE & Vlad RUSU

ELI-NP, Horia Hulubei National Institute for Physics and Nuclear Engineering

30 Reactorului Street,

077125 Magurele, Romania

+4021 404 50 89 / 021 404 50 89

www.eli-np.ro