[Etherlab-users] Experience with EL6992

[Richard Hacker]

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
> 
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> 

Mit freundlichem Gruß

Richard Hacker

-- 
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Richard Hacker M.Sc.
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