[etherlab-users] EtherCAT WARNING datagrams timed out

[Florian Pose]

Hi,

On Mon, Nov 02, 2009 at 01:49:30PM +0100, diplomarbeiter1 wrote:
> Nov  2 11:47:42 dS kernel: [ 1956.732428] EtherCAT: Scanning bus.
> Nov  2 11:47:42 dS kernel: [ 1956.740344] EtherCAT WARNING: 1 datagram TIMED OUT!
> Nov  2 11:47:43 dS kernel: [ 1957.738623] EtherCAT WARNING: 125 datagrams TIMED OUT!
> Nov  2 11:47:44 dS kernel: [ 1958.736906] EtherCAT WARNING: 116 datagrams TIMED OUT!
> Nov  2 11:47:44 dS kernel: [ 1958.984990] EtherCAT: Bus scanning completed in 2256 ms.
> Nov  2 11:47:44 dS kernel: [ 1958.984997] EtherCAT: Starting EoE thread.
> Nov  2 11:47:44 dS kernel: [ 1958.992493] EtherCAT: Slave states: INIT, PREOP.
> Nov  2 11:47:45 dS kernel: [ 1959.735185] EtherCAT WARNING: 118 datagrams TIMED OUT!
> Nov  2 11:47:46 dS kernel: [ 1960.557768] EtherCAT: Slave states: PREOP.
> Nov  2 11:47:46 dS kernel: [ 1960.881207] EtherCAT WARNING: 103 datagrams TIMED OUT!
> Nov  2 11:47:47 dS kernel: [ 1962.023242] EtherCAT WARNING: 9 datagrams TIMED OUT!

It seems that you're losing frames on the bus. Please check your
electrical connections. You could also check the CRC error registers of
the slaves to determine, where the problem is. What kind of Ethernet
device are you using?

-- 
Best regards,
Florian Pose

http://etherlab.org