CI840 Station warning 16#0202000

Hi, ABB experts! I have the problem with CI840, firmware is 4.3/1 for both module (redundancy). And unit status at CBM shows: HWStatus - 16#00000002, Errors and warning status - 16#0202000, ExtendedStatus - 16#C0000000. All submodules hasn't any warning or alarms. Strange that another CI840 with same firmware hasn't any warnings. Could you help me to solve this problem? Or at least suggest in what way i should to figure out!
P.s.: I have checked profibus line and didn't found any problem, also downloaded firmware again. But no any effect.

Thanks!