49ST100 User Manual v1 Confidential & Proprietary Information
8545-0194-01 v1.0
• Lifetime is set for 1 month (or never set) and unit gets its first fix: Last day of operation will be the same day next month. If
it gets a fix on the 31st of the month, and the following month has fewer than 31, days, last day of operation will be the last
day of next month.
4.2.2.26. “Query Lifetime Status” command
This command is used to query the lifetime status of the unit.
4.2.2.27. “Set Minimum Track Rate” command
This command sets the minimum track rate that is allowed to be set with a Proprietary Track (0x30) or Motion Activated
Proprietary Track (0x34).
The minimum track that can be set in any case with one of the above commands is “2” which is interpreted as 2.5 minutes (all
other values that may be sent are interpreted as the actual number of minutes).
This command will not be NAK’d for values < 2 but setting this “minimum” value to less than 2 shall simply enforce the
absolute minimum of 2.
The factory value for this shall be “0”.
BYTE BITS PARAMETER DESCRIPTION
0 0 - 7 Leader Always a value of 0xAA
1 0 - 7 Length 0x05
2 0 - 7 Command Code 0x71 = “Query Lifetime Status”
3-4 0 - 15 CRC Will contain the CRC
QUERY LIFETIME STATUS COMMAND
BYTE BITS PARAMETER DESCRIPTION
0 0 - 7 Leader Always a value of 0xAA
1 0 - 7 Length 0x0A (10 decimal)
2 0 - 7 Command Code 0x71 = Query Lifetime Status
3 0 - 7 Programmed lifetime The number of months for which the device was originally programmed.
4 0 - 7 End Month
Contains the month of the expiration date. If this field contains 0xFF, this indicates that the unit
has not obtained a fix since the lifetime was set, and the end date has not yet been calculated.
(Possible values 1 – 12 decimal).
5 0 - 7 End Day
Day of the month of the expiration date. If this field contains 0xFF, this indicates that the unit
has not obtained a fix since the lifetime was set, and the end date has not yet been calculated.
(Possible values, 1 – 31 decimal).
6 0 - 7 End year
The year of the device expiration. Expressed as years since 2000. E. g. 2021 is represented
by “21” (decimal). If this field contains 0xFF, this indicates that the unit has not obtained a fix
since the lifetime was set, and the end date has not yet been calculated.
7 0 - 7 Alive or Dead
A non-zero value (typically 0xFF) indicates the device is operational. A value of 0 indicates the
device has expired.
8-9 0 - 15 CRC Will contain the response CRC
QUERY LIFETIME STATUS RESPONSE
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