95
9.5.2 Offline configuration
User can select which CAN parameter should be sent to server without connection to
adapter. Please note that parameters depend on vehicle manufacturer and vehicle model. Please
for further information check “Light Vehicles Can adapter supported cars” document.
There are two types of operations with CAN data elements:
• Monitoring of CAN bus data
• CAN bus data event capturing
Monitoring method is used when user wants to receive CAN data on regular basis, for
example every 20 seconds.
Event functionality is used to store additional AVL packet when state of CAN element is
changing. For example Speed changes, low fuel level, engine temperate, etc.
Send data to server field – allows enabling CAN element so it is added to the AVL data
packet and sent to the server. By default, all CAN elements are disabled and FM3602/FM3612
records only GPS data.
It is possible to set CAN message priority: On Low Priority, On High Priority, and On Panic.
Regular packets are sent as Low priority records. When low priority event is triggered,
FM3602/FM3612 makes additional record with indication what was the reason for that was CAN
element change. When High priority is selected, module makes additional record with high
priority flag and sends event packet immediately to the server by GPRS. Panic priority triggers
same actions as high priority, but if GPRS fails, it sends AVL packet to server using SMS mode if
SMS is enabled in SMS settings.
Data Acquisition Type – defines when to generate event – when value enters defined
range, exits it or both, also is possible to select event which you want to generate then you
change values, like crossing both values in high and low levels (Hysteresis).
High and Low levels – defines CAN value range. If CAN value enter or exits this range,
FM3602/FM3612 generates event by “Data Acquisition Type” settings. Figure 59 show example
of FM3602/FM3612 CAN configuration.
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