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, [email protected] wrote:
Message: 1
Date: Wed, 9 Apr 2014 19:41:29 +0000
From: Steve Hartmann<[email protected]>
To: Etherlab Users<[email protected]>
Subject: [etherlab-users] Domain offset overlap
Message-ID:<cf6b0c97.f827%[email protected]>
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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