[etherlab-users] Timeout while waiting for Sdo upload response

Erwin Burgstaller ethercat.berknapp at spamgourmet.com
Mon Oct 13 10:48:32 CEST 2008


Hi,

* Fri, Oct 10, 2008 - 17:17:38 +0200, Florian Pose - fp at igh-essen.com:
> On Tue, Oct 07, 2008 at 11:35:38AM +0200, Erwin Burgstaller wrote:
> > No differnce, it's the same.
> 
> Does it make a difference if you increase the I/O timeout in
> master/globals.h?

Did it set to 2000, makes no difference.

I've then also set EC_SDO_REQUEST_RESPONSE_TIMEOUT in sdo_request.c to
5000, but didn't made it better.

But, because it's working with the switch, which slows down
communication, shouldn't be there something considered running too fast
than too slow?

I've tried another configuration:

> sudo ethercat slaves
0  0:0  PREOP  +  EK1100 EtherCAT-Koppler (2A E-Bus)
1  0:1  PREOP  +  EL6001 Schnittstelle (RS232)
2  0:2  PREOP  +  EL5151 1K. Inc. Encoder
3  0:3  PREOP  +  EL6001 Schnittstelle (RS232)

It works for the EL5151, but has "timeouts while waiting for Sdo entry
description". So there's some difference with that EL6001 devices.

Running them with the switch between, shows

Oct 13 10:27:25 UCL00097 kernel: [251444.467936] EtherCAT DEBUG: Fetching Sdo dictionary from slave 1.
Oct 13 10:27:25 UCL00097 kernel: [251444.954280] EtherCAT DEBUG: Fetched 34 Sdos and 223 entries from slave 1.
Oct 13 10:27:25 UCL00097 kernel: [251444.971232] EtherCAT DEBUG: Fetching Sdo dictionary from slave 2.
Oct 13 10:27:25 UCL00097 kernel: [251445.243509] EtherCAT DEBUG: Fetched 26 Sdos and 224 entries from slave 2.
Oct 13 10:27:26 UCL00097 kernel: [251445.262822] EtherCAT DEBUG: Fetching Sdo dictionary from slave 3.
Oct 13 10:27:26 UCL00097 kernel: [251445.748675] EtherCAT DEBUG: Fetched 34 Sdos and 223 entries from slave 3.

I've attached the syslog output with outputs from running up without
switch. First without debug, then once again with setting debug to 1.

> 
> > But there's no link to that page here:
> > http://lists.etherlab.org/pipermail/etherlab-users/
> 
> Do you mean
> 
> http://lists.etherlab.org -> etherlab-users -> Archives

OK, I see, it's there in the middle. Would have expect it on top. :-/


Thanks for your help,
Erwin

-- 
Erwin Burgstaller
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