Omron R88D-KN series User Manual page 189

 SII Data Check
The Slave Information Interface (SII) is an interface area in the nonvolatile memory of an EtherCAT
slave that stores the configuration information specific to that EtherCAT slave.
Sysmac Device EtherCAT slaves check the SII information from the slave side.
If one of these slaves finds that SII information with which it cannot operate was written, it generates
an SII Check Error (Error No. 88.3).If this error persists even after turning OFF and then ON the
power again, contact your OMRON sales representative.
Precautions for Correct Use Precautions for Correct Use
Do not use third-party or any other configuration tools to edit the SII information.
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
5 EtherCAT Communications
5
5-17