[etherlab-users] Domain offset overlap SOLVED

Steve Hartmann shartmann at militho.com
Thu Apr 10 22:31:55 CEST 2014


Folks,

Thanks for all the suggestions.  I finally figured out the issue.   In my code am building all the PDOs, entries and getting domain offsets all in one big loop such that I am making calls to ecru_slave_config_reg_pdo_entry before I have made all the calls to ecrt_slave_config_pdo_assign_add(), ecrt_slave_config_pdo_mapping_add, etc.  What I found is that I need to have all of the PDOs and PDO entries defined before I make any calls to ecrt_slave_config_reg_pdo_entry().

Best regards,

Steven

From: "ronaldo.mercado at diamond.ac.uk<mailto:ronaldo.mercado at diamond.ac.uk>" <ronaldo.mercado at diamond.ac.uk<mailto:ronaldo.mercado at diamond.ac.uk>>
Date: Thursday, April 10, 2014 11:44 AM
To: "ronaldo.mercado at diamond.ac.uk<mailto:ronaldo.mercado at diamond.ac.uk>" <ronaldo.mercado at diamond.ac.uk<mailto:ronaldo.mercado at diamond.ac.uk>>, Steven Hartmann <shartmann at militho.com<mailto:shartmann at militho.com>>, Etherlab Users <etherlab-users at etherlab.org<mailto:etherlab-users at etherlab.org>>
Subject: RE: Domain offset overlap

One further question, when the master is running, do all your slaves go to the “OP” state?

Ronaldo


From: ronaldo.mercado at diamond.ac.uk<mailto:ronaldo.mercado at diamond.ac.uk> [mailto:ronaldo.mercado at diamond.ac.uk]
Sent: 10 April 2014 16:54
To: shartmann at militho.com<mailto:shartmann at militho.com>; etherlab-users at etherlab.org<mailto:etherlab-users at etherlab.org>
Subject: Re: [etherlab-users] Domain offset overlap

Hello Steve,

Could you show how you generate the domains (*dptr)->Domain?
Have you tried using one domain only?

Regards,

Ronaldo


From: Steve Hartmann [mailto:shartmann at militho.com]
Sent: 09 April 2014 20:41
To: Etherlab Users
Subject: [etherlab-users] Domain offset overlap

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






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