Type 3 Message Class; Diagnostic Message - Globalstar SmartOne Series User Manual

Type 3 Message Class

The SMARTONE will use the Type 3 message class for the following message
types:
Diagnostic Message – Subtype 21.
Replace Battery Message – Subtype 22.
Contact Service Provider Message – Subtype 23.
• Accumulate / Count Message – Subtype 24. Subtypes 0 – 3 are used by
earlier tracker products.

Diagnostic Message

The Diagnostic Message includes battery status, GPS average acquisition time,
GPS fails and number of transmissions since the last Diagnostic Message.
The format and fields of the SMARTONE Diagnostic Message is shown in
table 8 below.
Byte Number Variable
0
Type Field
0
Subtype
1
Number of
transmissions
per burst.
1 Battery
Condition
1 GPS Subsystem
Fault
1 Transmitter
Subsystem Fault
1 Scheduler
Subsystem Fault
2
Min Interval
3
Max Interval
4
GPS Mean Search
Time
5,6
# GPS Fails
7,8
# Transmissions
SmartOne Manual Rev 1.5
Description
Bit (1:0) = 3 Non Standard
2
message type:
Bit (7:2) = 21 for Diagnostic
6
Message
Bits(3:0) = Number of
Transmissions (1 to 15
4
Transmissions)
Bit 4: 0 = Good battery. 1 =
1
Replace Battery
Bit 5: 0 = GPS system OK. 1 =
1
Fault
Bit 6: 0 = Transmitter OK. 1 =
1
Fault.
1 Bit 7: 0 = OK. 1 = Fault
Minimum Interval between
transmission attempts ( 5
8
second resolution) Default is
300 seconds
Maximum Interval between
8 transmission attempts. Default
is 600 seconds
Unsigned binary count in
8 seconds for mean GPS search to
acquire
Unsigned binary count of failed
16 GPS attempts since last
Diagnostic Message
# of transmissions since last
16
Diagnostic message
Table 8 - Diagnostic Message
DOC# 9100-0268-01 p.61