Experimental Physics and
Industrial Control System

Jeong Han Lee <[email protected]> · Mon, 30 Jul 2018 22:53:24 +0200

Hi EPICSers,

 I would like to add latest repository [1] about the configuration of

the ethelab master in order to make this discussion alive.

 It may not good for the isolated deployment case, but may be good

enough to run it within houses, labs, and so on. It also support dkms,

systemd service, and so on and was tested with CentOS7.5 and Debian 9.

 One needs mercurial, kernel sources, and dkms. Maybe if one doesn't

care about many packages along OS, please check the additional site [2].

  HTH,

  Han

[1] https://github.com/icshwi/etherlabmaster
[2] https://github.com/jeonghanlee/pkg_automation

On 02/06/2018 10:45 PM, Jeong Han Lee wrote:

Hi Mark,

    Sorry for the duplicated and not-ready-to-be-email, I hit the wrong

button.

    For the simple inexpensive setup, one needs the EtherCAT Master, the

EtherCAT Slave, and some HW as follows:

   1)  EtherCAT Master : There are three different versions due to many

other reasons. In order to configure the the master, please look at my

ugly script repo :

     https://github.com/jeonghanlee/ecat_setup

     I think, you can find three repositories. If you have any issue to

access any of them, please let me know. And if you know better one,

please let me know.

   2) HW list

    * EK1100    EtherCAT Coupler (EtherCAT Terminals EL/ESxxxx)

    * Some modules AI/AO and so on (depends on your selection for EPICS

EtherCAT driver&DB, please look at 3)

    * EL9011    Bus end cap

    In addition, you need a PC has two Ethernet interfaces.

   3)  EPICS EtherCAT Driver and DB

    3.1) Diamond  https://github.com/dls-controls/ethercat

         : It has DB and Driver. And DB files help you which HW you can

buy)

    3.2) PSI  https://github.com/paulscherrerinstitute/ecat2

    3.2*) ESS https://github.com/icshwi/m-epics-ecat2 ; (old forked

version of PSI)

         : They do not have DB files, so you need another DB files for

this. Please look at

https://github.com/icshwi/e3-ecat2db/tree/master/ecat2db, then you can

find which HW can be used without writing any codes)

    Well, it is not the perfect condition in terms of many issues. We

(ESS) are trying to find a way in order to minimize risks in the future.

    HTH,
    Han

P.S. I enclosed the photo of a EtherCAT test setup, which I built with

my colleague in our lab.

On 02/06/2018 08:37 PM, Mark Rivers wrote:

I am interested in trying out EtherCAT with a simple inexpensive

setup. What are the minimum parts I need to buy if I want to use the

EPICS EtherCAT driver to control some digital I/O, analog I/O, and a

stepper motor?  I looked at the Beckhoff website, but I find it

overwhelming.

Thanks,

Mark

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System