Page 47SmartOne C User Manual Confidential & Proprietary Information
9100-0410-01 R2.4
LOCATION MESSAGE
This is the message that is transmitted on an interval. When this message is received, it indicates that the
transmission is due to a scheduled interval at either the At Rest rate or In Motion rate. Whether the device is At Rest
or In Motion can be determined by the Motion bit (Byte 8 , bit 6).
The Location Message Subtype field of this message is contained in byte 7; bits 4-7 have a value of zero 0.
DEVICE TURNED ON MESSAGE
This is the message transmitted at power on.
The Standard Message Subtype field of this message, contained in byte 7; bits 4-7, has a value of 1.
360 degrees of Longitude coded in signed binary with 3 bytes and 180
degrees of Latitude coded in signed binary with 3 bytes.
Positive Longitudes correspond to East Longitudes
Positive Latitudes correspond to North Latitudes
See Appendix G for an Lat/Long decoding example
7 INPUT STATUS 4
These bits reflect the state of the Inputs and indicate which one, if any, triggered
an Input Status Changed message.
Bit 0: Input 1 change: 0 = Did not trigger message, 1 = Triggered message.
Bit 1: Input 1 state: 0 = Closed, 1 = Open
Bit 2: Input 2 change: 0 = Did not trigger message, 1 = Triggered message
Bit 3: Input 2 state: 0 = Closed, 1 = Open
7 MESSAGE SUB-TYPE 4
Bits (7:4) message sub-type code. See subtypes below:
Value is 0 in the location message.
Value is 1 in the Device Turned On message.
Value is 2 in the Change of Location Area alert message.
Value is 3 in the Input Status Changed message.
Value is 4 in the Undesired Input State message.
Value is 5 in the Re-Centering message.
8 RESERVED 3 Bits (2:0) RESERVED in SmartOne
8
VIBRATION TRIGGERED
MESSAGE
1
Bit (3) – Value 1 = This message is being sent because Transmit on Change of
Vibration State is selected and the vibration just changed state, or Undesired Vi-
bration State is selected and the vibration is in the undesired state. Value 0 = This
message is being transmitted for a reason other than the above reasons.
8 VIBRATION BIT. 1
Bit (4) – Value 1 = Unit is in a state of vibration. Value 0 = Unit is not in a state of
vibration.
8 2D 1
Bit (5) – Value 1 = GPS data reported is from a 2D fix. (Only 3 satellites were used
in the fix.) Value 0 = GPS data reported is from a 3D fix.
8 MOTION 1
Bit (6) – Value 1 = Device was In-Motion when the message was transmitted.
Value 0 = Device was At Rest when the message was transmitted.
8 FIX CONFIDENCE BIT. 1
Bit (7) 0=High confidence in GPS fix accuracy, 1=Reduced confidence in GPS fix
accuracy.
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