I have a device which uses the ET1100, Beckhoff to control. I use software TwinCAT 2 to connect this device and it identified the name's EtherCAT I/O Heizungssteller 9 Kanal. But it appear error, it's ERR_PREOP and cannot change to OP. Error: 'check device state for SAFEOP'. AL Status '0x0012' read and '0x0004' expected. AL Status Code '0x0017' - Invalid sync manager configuration' Anyone can support me how to fix the error, change to OP for EtherCAT device, or how to control this? I attach the image of this error. Please!