PLCCnetVerified · sol.ls-electric.com
Cnet 0F — ERR_NAK_ERR
Warning — monitor
CAUSE
Why does it occur?
Response of receive frame is NAK
REMEDY · Step by step
How to fix it?
Check cable/station no./frame and reception waiting time
Do not reset repeatedly before identifying the cause. Repeated resets while ignoring a trip/alarm can cause secondary damage (IGBT failure, motor winding damage, etc.).
SOURCE
Related manual page
Verified · sol.ls-electric.com
Open PDF ↗XGB Cnet I/F XBL-C21A User Manual V2.0 (Eng)
Appendix 3.3 P2P Client Error Code · p.212 · V2.0