Experimental Physics and
Industrial Control System

Jeong Han Lee <[email protected]> · Sun, 27 May 2018 21:31:39 +0200

Hi,

 Maybe it is not necessary, but I would like to update the ESS status

now.

 ESS will use the vanilla EtherCAT master instead of others. And it is

fully compilable with the latest Linux Kernel 4.9.X.

 In addition, the in-house epics modules (aka ecmc and others) will be

used to cover the EtherCAT application.

  So, the old HW list is not relevant soon.

  I will update the support HW list later

 I am pretty sure, most of developers do not need the following tool,

but I hope someone may think it is useful for their application within

EPICS community.

 For the etherlab EtherCAT Master setup (CentOS, Debian), I build the

simple tool as follows:

  https://github.com/icshwi/etherlabmaster

  HTH,
  Han

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