Hello
IO_192 is Odometer data from Tachograph
IO_216 is Total Odometer data from GPS, LVCAN, FMS or KLINE (according to system settings)
We would like to analyze your case, please raise a ticket on a VIP Helpdesk and provide device configuration and firmware version.
If you don't have account on a VIP Helpdesk please contact with your Sales Manager.
Regards