Minitrack

cell ID

0 bit - Communication with GPS is 1 - available / 0 - not available
1 bit - Network (0 - Home, 1 - Roam)
2 bit - Correct Time (1 - Invalid/estimated time stamp, 0 – Valid time stamp)
3 bit - Source of Speed (0 – GPS, 1 – Pulse frequency input)

The voltage on the internal battery

External power supply voltage

Bit 0 - Actual GNSS antenna selected (0 – Internal, 1 – External). (Relevant only for Cello GNSS variants)
Bit 1 - Trailer status indication. (0 – Trailer Disconnected, 1 – Trailer
Connected)

Bit 2 - 4 - CFE Type.

Unit Mode of Operation. The functioning of the unit can be generalized as a finite state machine model, with a few "stages" of operation. The "current stage" is referred to as "unit mode", or "mode of operation", as following:

Value Unit Mode Description
0x00 Standby Engine On
0x01 Standby Engine Off
0x02 Passive Arming (for security modifications)
0x03 Pre-Arming (for security modifications)
0x04 Alarm Armed (for security modifications)
0x05 Silent Delay (for security modifications)
0x07 Alarm Triggered (for security modifications)
0x0E Garage Mode
0x0F Transmissions Delay (for FW versions older than 25)
0x10 Towed mode (same as Standby Engine On, but with ignition off)

MODE 1 and Mode 2
These fields are generated by the GPS and transparently monitored in the outgoing message from the unit. The fields define the validity of GPS data in the message. The unit considers the valid fix according to the "Enable Tight GPS PMODE Filter" parameter (address 509, bit 7):
 If "Enable Tight GPS PMODE Filter" is enabled, the unit considers the GPS data as valid only if Mode 1 = 3 or 4 AND Mode 2 = 2
 If "Enable Tight GPS PMODE Filter" is disabled, the unit considers the GPS data as valid only if Mode 1 =2, 3, 4, 5 and 6