[etherlab-users] Domain offset overlap

[Dave Page]

     In order to reduce process data size, TwinCAT overlaps the RxPDO 
and TxPDO for each module, then uses the LRW command to effect the 
transfer. So, I believe what you're seeing is normal.

         Best regards - Dave Page

On 09-Apr-14 15:41, etherlab-users-request at etherlab.org wrote:
> Message: 1
> Date: Wed, 9 Apr 2014 19:41:29 +0000
> From: Steve Hartmann<shartmann at militho.com>
> To: Etherlab Users<etherlab-users at etherlab.org>
> Subject: [etherlab-users] Domain offset overlap
> Message-ID:<CF6B0C97.F827%shartmann at militho.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi all,
>
> I have written some code to parse the generated XML file from "ethercat xml" and use that to configure the ethercat stack.  The problem I am having is the output from ecrt_slave_config_ret_pdo_entry produces overlapped offsets.  I also tried using ecrt_slave_config_reg_pdo_entry_pos with the same results.  This is a very simple test rig that has one each of DO, DI, AO, and AI slices - all beckhoff.  I have attached a file which includes the generated XML file, the code in question, and the log output.  Does anyone know what I am doing wrong?
>
> Best regards,
>
> Steven Hartmann


-- 
------------------------------------------------------------------------
David Page, Chief Embedded Architect
Dynamic Systems Inc.
PO Box 1234
Poestenkill, NY 12140
Telephone: +1 (518) 283-5350 | Fax: +1 (518) 283-3160 |
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