Experimental Physics and
Industrial Control System

Carsten Winkler <[email protected]> · Mon, 25 Nov 2013 13:22:32 +0100

Hi Antonio,

EPICS_CA_AUTO_ADDR_LIST and EPICS_CA_ADDR_LIST are environment variables and will be used by every channel access component at same computer. In your case, you need it for your Linux clients only. A good documentation you can find here: http://www.aps.anl.gov/epics/docs/AES2011/05-Protocol.pdf
BTW did you notice your typo in EPICS_CA_ADDR_LIST?

Regards
Carsten

Am 25.11.2013 13:08, schrieb Antonio Borondo:
> Hi Carsten,
>
> Great to know that! Now I have a clearly idea of how I have to deploy the network.
>
> But my problems has not finished yet: I get the next error message when I am executing camonitor within the MicroBox:
>
> SAI:STATUS                     *** Not connected (PV not found)
> CA.Client.Exception...............................................
>     Warning: "Identical process variable names on multiple servers"
>     Context: "Channel: "SAI:STATUS", Connecting to: 192.168.20.2:5064, Ignored:
> IFMIFMICROBOX:5064"
>     Source File: ..\cac.cpp line 1297
>     Current Time: Mon Nov 25 2013 13:50:02.666748232
> SAI:STATUS                     2013-11-25 13:50:02.378366
> ..................................................................
>
> My MicroBox has two network interfaces: the first one connected to the PLC (192.168.29.2) and the second one connected to the linux PC (172.31.110.199).
>
> I have read the same problem by the Internet and people suggest setting the variables EPICS_CA_AUTO_ADDR_LIST=NO and ECPIS_CA_ADDR_LIST=<Broadcast address> but I do not know if it is possible in OpcIocShell.
>
> Could you help me with that?
>
> Thank you very much,
>
> Antonio Borondo
>
> -----Mensaje original-----
> De: Carsten Winkler [mailto:[email protected]]
> Enviado el: lunes, 25 de noviembre de 2013 12:52
> Para: [email protected]; [email protected]
> Asunto: Re: Error database DTYP
>
> Hi Antonio,
>
> you need only one soft IOC (the one at the MicroBox). In your case you have to run the OpcIocShell to have an interface between OPC and EPICS.
> At Linux you only need channel access clients as caget, camonitor or higher level clients. A standard soft IOC doesn't support the DTYP "OPC". This is a special feature of the OpcIocShell.
>
> Hope this resolves your problem
> Carsten Winkler
>
>
> Am 25.11.2013 11:46, schrieb Antonio Borondo:
>> Hi all,
>>
>>
>>
>> I am trying to deploy an EPICS network between a linux PC, a MicroBox
>> with OPC Server and a Siemens PLC.
>>
>>
>>
>> The MicroBox basically gets the registers from the PLC, stores them
>> into OPC Server database and after puts them into EPICS database using OpcIocShell.
>>
>>
>>
>> On the linux PC side I have developed the EPICS IOC which loads the
>> same data base.
>>
>>
>>
>> My problem comes when I start my IOC and I get the next error message
>> for each PV of the data base:
>>
>>
>>
>> Can't set "<PV NAME>.DTYP" to "opc"
>>
>> Error at or before ")" in path "." file "opc.db" line x"
>>
>>
>>
>> Any ideas about how to resolve it?
>>
>>
>>
>> Thank you very much,
>>
>>
>>
>> Antonio Borondo
>>
>>
>
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>
> Sitz Berlin, AG Charlottenburg, 89 HRB 5583
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________________________________

Helmholtz-Zentrum Berlin für Materialien und Energie GmbH

Mitglied der Hermann von Helmholtz-Gemeinschaft Deutscher Forschungszentren e.V.

Aufsichtsrat: Vorsitzender Prof. Dr. Dr. h.c. mult. Joachim Treusch, stv. Vorsitzende Dr. Beatrix Vierkorn-Rudolph
Geschäftsführung: Prof. Dr. Anke Rita Kaysser-Pyzalla, Thomas Frederking

Sitz Berlin, AG Charlottenburg, 89 HRB 5583

Postadresse:
Hahn-Meitner-Platz 1
D-14109 Berlin

http://www.helmholtz-berlin.de

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System