Template:FMM640 Short burst data settings
Short burst data settings[edit source]
FMM640 supports Iridium devices which can send short burst data (SBD) to the server. This means that some data can be sent from FM device to the server through satellites.
FMM640 will enable satellite mode only if a device can not send data via GPRS. Satellite mode has his own Save/Send period. If timeout is set to 0 no periodic records will be made. It is not recommended to save records often because of satellite traffic prices. 8 kilobytes monthly data limit is hardcoded in firmware. If the data limit is reached – the data limit counter will reset automatically only on next month first day or you can rest counter by SMS command “sbdlimitsreset”.
In addition, you can select which IO element can generate Satellite records. In order to do that you need to go to I/O tab select IO record priority Panic and check the checkbox “Satellite I/O” what you want to get that data through satellites if there is no GSM connection. Record which will be sent through the Iridium satellite network will be different than the regular record. It will contain 4 bytes timestamp, 3 bytes longitude, 3 bytes latitude, 1 byte record generation info, 1 byte DIN, DOUT info, 1 byte speed value.
NOTE: Port1/2 cable from FM package can be used for TSM232 connection. For this you need to cut a D-SUB connector and connect wires according to the instruction above (PIN 4 to TSM GND, PIN5 to TSM Rx, PIN6 to TSM Tx).
NOTE: SBD data is limited to 8000 Bytes per month. For firmware with a bigger SBD data limit, please ask your sales manager. If the data limit is reached you can reset it with SMS command “sbdlimitsreset”.