Software Features; At Commands Over Sms; Store/Transmit Event Data; Synchronize Rtc Time With Gps Time - Enfora MT 3000 User Manual

4 Software Features

AT Commands Over SMS

A user can send AT commands to the MT 3000 via SMS. Please refer to Enfora Application Note
GSM0308AN001 - Enabler IIIG AT Commands Over SMS.

Store/Transmit Event Data

The user can configure the MT 3000 to store event-generated data in its internal memory, to be sent over
the air to a remote server. This feature can be enabled or disabled using the AT$MSGLOGEN command.
"Total Number of Unread Messages" is decremented if an unread message is read via the AT$MSGLOGRD
command.
Example: Assume there are 50 unread messages in the GPRS queue and the total number of messages in
GPRS queue is 100. This means that the first 50 messages have been read while the last 50 messages have
not been read. If a user sends AT$GPSLOGRD=0,1,51 then the total number of unread messages drops
down to 49 after successful transmission of that message. However, if a user sends AT$GPSLOGRD=0,1,99
then the total number of unread messages still remains at 50 – that message is transmitted to the remote
server.
A user can also read a message that has already been read from the memory by passing in the appropriate
starting index number.

Synchronize RTC Time with GPS Time

The Real Time Clock ("RTC") is synchronized with GPS time automatically every time the device is powered
up and first acquires valid GPS data. Additionally, the RTC time is synched with GPS time every time the
GPS time rolls over from 23:59:59 to 00:00:01.

4.1 New Event Reporting

The MT 3000 has additional event reporting not supported by other Enfora products. For general event
reporting information and for detailed information about these new events refer to the MT 3000 AT
Command Document (GSM2374AT001).

Vehicle Identification Number (VIN)

The VIN is used as a unique identifier, sent at first power up, with heartbeat messages, and with events.
- 17 -