[etherlab-users] slave not change to op state

[Gavin Lambert]

Have you called ecrt_master_activate?  Note that it may take a few cycles
before the slave actually transitions to OP after calling this.

 

Otherwise, check the syslog (possibly with ethercat debug 1) to see if there
are any errors reported by the slave.  It may be refusing to transition from
PREOP due to some missing configuration parameter.  Check the slave’s
manual.

 

From: etherlab-users [mailto:etherlab-users-bounces at etherlab.org] On Behalf
Of ???
Sent: Monday, 23 November 2015 02:37
To: etherlab-users <etherlab-users at etherlab.org>
Subject: [etherlab-users] slave not change to op state

 

Hey, I am tring to use igh ethercat master but meeting a trouble.
My slave is a servo drive and it supports ethercat communication.
I set my slave information and pdos from early and in cycle task just read
data from TPDO. 
But when I run it, I find the WC recevied was always zero and the AL state
showed in PREOP.
I could see the slave was touched, but how could this happened? My pdo
setting have something wrong?
Who can tell me the possible problems? Thank you!

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