Hello, I would like to add an EtherCAT IO device. What should I do

sudo dmesg -wH
[Apr 4 07:43] EtherCAT 0: Master thread exited.
[  +0.000016] EtherCAT 0: Starting EtherCAT-IDLE thread.
[  +0.000038] EtherCAT ERROR 0-3: Failed to receive AL state datagram: Datagram initialized.
[  +0.000017] EtherCAT 0: Releasing master...
[  +0.000001] EtherCAT 0: Released.
[  +0.024165] EtherCAT ERROR 0-0: AL status message 0x001A: "Synchronization error".
[  +0.001309] EtherCAT 0-0: Acknowledged state SAFEOP.
[  +0.014483] EtherCAT ERROR 0-1: AL status message 0x001A: "Synchronization error".
[  +0.001578] EtherCAT 0-1: Acknowledged state SAFEOP.
[  +0.010458] EtherCAT ERROR 0-2: AL status message 0x001A: "Synchronization error".
[  +0.000839] EtherCAT 0-2: Acknowledged state SAFEOP.
[  +0.011212] EtherCAT ERROR 0-3: AL status message 0x002D: "No Sync Error".
[  +0.000528] EtherCAT 0-3: Acknowledged state SAFEOP.
[  +0.007163] EtherCAT 0: Slave states on main device: PREOP.
[  +0.783938] EtherCAT WARNING: Datagram 000000007d6dd556 (master-fsm) was SKIPPED 1 time.
[ +12.203295] EtherCAT: Requesting master 0...
[  +0.000003] EtherCAT: Successfully requested master 0.
[  +0.001335] EtherCAT 0: Domain0: Logical address 0x00000000, 112 byte, expected working counter 12.
[  +0.000003] EtherCAT 0:   Datagram domain0-0-main: Logical offset 0x00000000, 112 byte, type LRW.
[  +0.000009] EtherCAT 0: Master thread exited.
[  +0.000002] EtherCAT 0: Starting EtherCAT-OP thread.
[  +0.000030] EtherCAT WARNING 0: 1 datagram UNMATCHED!
[  +5.267792] EtherCAT WARNING 0-0: Slave did not sync after 5000 ms.
[  +6.879988] EtherCAT ERROR 0-3: Timeout while setting state OP.
[  +0.007489] EtherCAT 0: Slave states on main device: SAFEOP, OP.
[  +3.132001] EtherCAT 0: Slave states on main device: SAFEOP, OP + ERROR.



 

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