Tachograph performance – indicates the tachograph performance; including electronic or
mechanical analysis, instrument analysis, speed sensor analysis, mass storage analysis and
printer analysis.
Handling information – indicates that handling information is present.
System event – indicates that a tachograph event has occurred. This may include power
supply interruption, interruption of the speed sensor, incorrect data on the driver card, driving
without a driving card, illegal removal of a driver card, insertion of a driver card during
driving, and time adjustment.