Experimental Physics and
Industrial Control System

Oscar Ibañez via Tech-talk <tech-talk at aps.anl.gov> · Thu, 12 Jan 2023 09:02:58 +0100

Hi,

I am trying to set up a PostgreSQL RDMS to work together with EPICS to

save some PV values. However, I am having doubts about how to do it,

since the process is not clear to me.

First of all, I installed EPICS and I downloaded Phoebus. Both are

running with no problem. In addition, I installed PostgreSQL. It seems

to work fine. Then, I tried to learn how to connect EPICS and

PostgreSQL, and I ended up reading Phoebus documentation about the RDB

Archive Engine, and that was the point when I did no understand what I

was doing.

https://control-system-studio.readthedocs.io/en/latest/services/archive-engine/doc/index.html

The document says that I need to download the archive engine from:
https://controlssoftware.sns.ornl.gov/css_phoebus

But I can't find any archive engine in that place.

In addition, I am confused about the rol of Phoebus in this problem. Why

do I need to set up any preference in the Phoebus configuration to use

the Archive Engine? Phoebus is just a software to create and to display

graphical screen to monitor/check the control system. If I run the

Archive Engine, that software will save PV values in the PostgreSQL

tables that I want. So, I don't understand the relationship between

Phoebus and the Archive Engine, since the documentation is in the CSS web.

Any help would be useful.

Regards.

Óscar

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System