Actions; Reports - red lion BT-6821-AT-AC User Manual

When Store And Forward is activated, the modem stores Event data in memory on a First In First Out (FIFO) basis. This
means that if the modem is unable to transmit fixes over an extended period of time, and the memory becomes full as a
result, the newest events overwrite the oldest stored events. When the connection to the report destination is re-
established, the modem will send all the stored fixes to the destination.
Stored events are transferred to non-volatile memory when the IGN input signal is low (BT-5600v2 and BT-5800v2) or
when the modem is shutdown via an AT command. Stored events are not lost if the modem is shutdown through
ignition delay timer.
10.3

Actions

The modem can perform one or more of the following actions when an event is triggered:

Change the state of one of its digital outputs

Turn its radio-frequency module ON or OFF
10.4

Reports

When an event is triggered, the modem can send a report to up to 10 local or remote destinations.
All reports are custom-formatted by the BlueTree Event Protocol as defined in the I/O Management & Event Reporting
document, so they require some manipulation on the destination end in order to be parsed properly.
A report can contain one or more of the following information:

The modem's name and ESN

The modem's RSSI (signal strength)

The value of the analog and digital inputs

The modem's odometer value (total distance traveled)

A GPS report containing NMEA or TAIP data
10.4.1 ACK
The modem can be configured to wait for confirmation ("ACK") from the remote server that it has received the report. If
this confirmation does not come, the modem will assume the report has not been received and will continue sending
the same report at a configured interval until it receives confirmation of receipt.
10.4.2 Sync flags
To ease the parsing of the packets on the server, the modem can set a sync flag in the beginning and end of each packet
it sends.