[etherlab-users] Link down: Hardly to recognize

[Erwin Burgstaller]

Hi again,

If the EtherCAT cable is pulled out, the link goes down and as long as
the master module isn't unloaded, the master works like every thing's
fine.

"ethercat master" looks like this:

Master0
  Phase: Operation
  Slaves: 3
  Device0: 00:d0:c9:ae:49:8d (attached)
    Tx count: 14388072
    Rx count: 14352228
  Device1: None.

Only the fact, Tx count and Rx count are the same on subsequent calls
might be a sign that some thing's wrong, beside from some log file
entries (e.g. Link down).

"ethercat slaves" and "ethercat sdo" are too operating normal, but it
would be much better, if at least the slaves states are shown as OFFLINE
or something like that.

Unloading and reloading the realtime module works surprisingly too and
just for simple digital IO's there's no difference in having a link or
not.


Regards,
Erwin

-- 
Erwin Burgstaller