Hi Richard,
Knowing that it should generally work is really valuable! Actually I have
already used Twincat on primary side and EtherLab on secondary some time ago,
so I know that works. If you managed to operate the other way round, using
Etherlab on both sides has to work as well somehow. I will spend some more
effort on this and give feedback if I find something interesting for all.
Thanks a lot for your Input!
Cheers,
Amos
--
Amos Merkel, M.Sc.
Group leader
Digitalization
ifas – Institute for Fluid Power Drives and Systems
RWTH Aachen University
Campus-Boulevard 30
52074 Aachen
Tel: +49 241 80-47737
Fax: +49 241 80-647712
www.ifas.rwth-aachen.de | Twitter | Facebook | YouTube | LinkedIn
www.ifk2022.com
-----Ursprüngliche Nachricht-----
Von: Richard Hacker <h...@igh.de>
Gesendet: Donnerstag, 14. April 2022 10:25
An: Merkel, Amos <amos.mer...@ifas.rwth-aachen.de>; etherlab-users@etherlab.org
Betreff: Re: AW: [Etherlab-users] Experience with EL6992
Hi Amos
Firstly, that project was 7 years ago... my memory is fading ;)
Our system was the primary, we controlled the E-bus, configuring up PDO's as in
the script.
The secondary system was TwinCAT from the client and I was little involved
therein, so I cannot speak of experience. But I guess the secondary side is
mirrored as you suspected.
I'd set up the primary (E-Bus) and check that it works reliably (OP) with
secondary disconnected. Then connect the secondary and scan it. It should
reflect the PDO's as configured.
I'm sorry, I don't have more experience with the secondary side. I don't even
know whether the sequence of initialization (primary first, then secondary or
other way round) is important. I just wanted to note that in principle the
slave works as expected.
Good luck!
Richard
On 4/14/22 10:03, Merkel, Amos wrote:
> Hi Richard,
>
>
> Of course, I meant the EL6692 - too many sixes and nines...
>
>
> Odd, that looks almost exactly like what I used - the secondary side
> is basically the same with mirrored In-/Outputs, right? You don't have
> the odd effects with the operating states as well?
>
>
> Greetings
>
> Amos
>
> ----------------------------------------------------------------------
> --
> *Von:* Richard Hacker <h...@igh.de>
> *Gesendet:* Mittwoch, 13. April 2022 15:09:51
> *An:* etherlab-users@etherlab.org
> *Cc:* Merkel, Amos
> *Betreff:* Re: [Etherlab-users] Experience with EL6992 Hi Merkel
>
> You mean the EL6692 ;)
>
> That must be some mistake somewhere on your side. I successfully used
> that slave in the past, attached is a matlab script for the generic
> slave in etherlab_lib, but I am sure you would be able to process it
> for your needs.
>
> Richard
>
> On 4/13/22 14:06, Merkel, Amos wrote:
>> Hi everyone,
>>
>> I am tryingto set up a Beckhoff EL6992 terminal and ran into some
>> unexpected problems. Has anyone experience with this hardware?
>>
>> Here is my problem:
>>
>> The EL6992 is an EtherCAT bridge terminal, allowing communication
>> between two EtherCAT systems. For that, it consists of actually two
>> ethercat slaves, one „primary“ slave on one system and a „secondary“
>> slave on a second system. The primary side can configure PDOs for
>> communication which the secondary side can then use.
>>
>> First odd thing I notice are the operating states: The terminal
>> initializes in „OP“ on the primary side and in „OP“ or „PreOp+E“ on
>> secondary side. I have yet to understand what decides the state of
>> the secondary side
>>
>> So far I managed to configure PDOs for communication on both sides.
>> For this to work, I have to manually set the operating states on both
>> sides to Init, then to PreOp, then start my control job on primary
>> side, then on secondary side. Otherwise the configuration is not accepted.
>>
>> However, on both sides the system freezes shortly after starting the
>> control jobs. System freeze is complete, even Alt+Print+REISUB does
>> not work anymore.
>>
>> A similar thing happens when I try to kill a control job shortly
>> after starting it:
>>
>> The control job can not be killed, not with Strg+C, and not with kill
>> <PID>. Shortly after trying, the system freezes graduadely, sometimes
>> rebooting still works, sometimes I have to default back to
>> Alt+Print+REISUB. I have tried reading the dmesg output while killing
>> the control job, I can’t find error messages, the output stops at
>> „releasing Master 0…“
>>
>> I would be most grateful for any pointers on how to proceed with this.
>>
>> Best regards,
>>
>> Amos
>>
>> --
>> Amos Merkel, M.Sc.
>> Group leader
>> Digitalization
>>
>> ifas – Institute for Fluid Power Drives and Systems RWTH Aachen
>> University Campus-Boulevard 30
>> 52074 Aachen
>>
>> Tel: +49 241 80-47737
>> Fax: +49 241 80-647712
>>
>> www.ifas.rwth-aachen.de <http://www.ifas.rwth-aachen.de>
> <http://www.ifas.rwth-aachen.de/ <http://www.ifas.rwth-aachen.de/>>|
> Twitter
>> <https://twitter.com/IFAS_RWTH <https://twitter.com/IFAS_RWTH>>|
>> Facebook
>> <https://www.facebook.com/IFAS-Institut-f%C3%BCr-fluidtechnische-Antr
>> iebe-und-Steuerungen-260714043957873/
> <https://www.facebook.com/IFAS-Institut-f%C3%BCr-fluidtechnische-Antri
> ebe-und-Steuerungen-260714043957873/>>|
>
>> YouTube <https://www.youtube.com/channel/UC0vIq8jtra8E_--Sx8DALkQ
> <https://www.youtube.com/channel/UC0vIq8jtra8E_--Sx8DALkQ>>|
>> LinkedIn <https://www.linkedin.com/company/ifas-rwth/
> <https://www.linkedin.com/company/ifas-rwth/>>
>>
>> Signatur June
>>
>>
>>
>> www.ifk2022.com <http://www.ifk2022.com> <http://www.ifk2022.com/
> <http://www.ifk2022.com/>>
>>
>> **
>>
>>
>>
>>
>
> Mit freundlichem Gruß
>
> Richard Hacker
>
> --
> ----------------------------------------------------------------------
> --
>
> Richard Hacker M.Sc.
> richard.hac...@igh.de
> Tel.: +49 201 / 36014-16
>
> Ingenieurgemeinschaft IgH
> Gesellschaft für Ingenieurleistungen mbH Nordsternstraße 66
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>
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>
> ----------------------------------------------------------------------
> --
Mit freundlichem Gruß
Richard Hacker
--
------------------------------------------------------------------------
Richard Hacker M.Sc.
richard.hac...@igh.de
Tel.: +49 201 / 36014-16
Ingenieurgemeinschaft IgH
Gesellschaft für Ingenieurleistungen mbH Nordsternstraße 66
D-45329 Essen
Amtsgericht Essen HRB 11500
USt-Id.-Nr.: DE 174 626 722
Geschäftsführung:
- Dr.-Ing. Siegfried Rotthäuser
- Dr. Sven Beermann, Prokurist
Tel.: +49 201 / 360-14-0
http://www.igh.de
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