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

Subject: Re: IOC server on windows or access a PV
From: Zunbeltz Izaola <zunbeltz.izaola@essbilbao.org>
To: xiaoqiang.wang@psi.ch
Cc: tech-talk@aps.anl.gov
Date: Fri, 03 Oct 2014 09:55:07 +0200
This was my thought.
Thanks

Zunbeltz

Xiaoqiang Wang <xiaoqiang.wang@psi.ch> wrote:

>
>Dear Zunbeltz,
>
>For such a channel access server, the PV timestamp is given by the server where the PV is hosted.
>
>
>Best
>Xiaoqiang
>
>On 03 Oct 2014, at 09:31, zunbeltz <zunbeltz.izaola@essbilbao.org> wrote:
>
>> Dear Xiaoquiang,
>> 
>> Thanks for the information.
>> What is important to me is also to have a proper timestamp for the PVs and I an not very confident on the windows machine.
>> If I install a portable channel access server, the timestamps of the PVs I serve there will be taken from the windows machine; am I right? If I have the server in other computer the timestamp of the uploaded PV will be given by that other server, not the "caput" operation I run in the windows; isn't it?
>> 
>> Best regards,
>> 
>> Zunbeltz
>> 
>> 
>> og., 2014.eko urrren 02a 22:13(e)an, Xiaoqiang Wang igorleak idatzi zuen:
>>> Hi,
>>> 
>>> There is a 3rd choice: create the PV in portable channel access server.
>>> 
>>> If your calculation code can be invoked with Python, be it a C extension or separate program (using subprocess module).
>>> This can be easy to write using PCASpy[1] extension.
>>> 
>>> Best
>>> Xiaoqiang
>>> 
>>> [1] https://pypi.python.org/pypi/pcaspy
>>> 
>>> 
>>> On 02 Oct 2014, at 21:48, zunbeltz <zunbeltz.izaola@essbilbao.org> wrote:
>>> 
>>>> Dear all,
>>>> 
>>>> We need to pass some values, calculated from photographs, to the EPICS network from a windows machine.
>>>> Is it easy to install an IOC server in a windows machine?
>>>> If not, our idea is to create the PVs in an already running IOC server (on linux), and use caput tool (from the EPICS Extensions http://aps.anl.gov/epics/distributions/win32/index.php) to update the values.
>>>> Is it possible to create an  PV that is not associated with any hardware in a IOC server? Is it enough to add a record in the ioc.db file?
>>>> 
>>>> Thanks in advance for your help.
>>>> 
>>>> Zunbeltz
>>>>  -- 
>>>> Dr. Zunbeltz Izaola
>>>> Accelerator Physics Group
>>>> ESS-Bilbao
>>>> 
>> 
>> -- 
>> Dr. Zunbeltz Izaola
>> Accelerator Physics Group
>> ESS-Bilbao
>> 
>


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