BITREK BI-530C TREK, Руководство по эксплуатации

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Important!
The variables “Bit depth” and “Address of the module
transmitting the message” are reserved parameters of the
tracker and their configuration is not required.
After sending the above commands, the device will transmit fuel
consumption data received from the vehicle’s CAN bus to the server. To
convert the transmitted data into the volume in liters, it is necessary to
convert the obtained values taking into account the discreteness specified
in the FMS protocol. In our case, it is 0.5 L / Bit.
Configuring the device for working with the J1708 bus
«BI 530C TREK» tracking device has the ability to read data from
the vehicle bus according to the J1708 standard. For this, the operating
mode of the RS-485 bus of the tracker must be switched to the
corresponding mode using parameter 5008 (setparam 5008 2;).
The device can be configured to read and transfer to the server up
to 10 variables simultaneously. At the same time, 4 separate tracker
parameters are used to configure reading of one such variable:
 PID
 Start Bit
 Length (number of bits)
 Data reset timeout
A list of all the parameters for setting J1708 is presented in
Appendix 1 .
The setting is performed similarly to the setting of the device for
working with the CAN bus - PID, start bit, data length and data reset
timeout must be configured. Setting the “Bit depth” variable is also not
required.
Please note that using devices with a digital RS-485 interface and
simultaneously reading data from the J1708 bus is not possible.
Setting the priority for the GPS data source definition
The monitoring device “BI 530С TREK” has the ability to connect an
external GPS antenna to it, which allows the tracker to automatically
switch to the source with the best GPS signal reception during its
operation. The signal quality is assessed by comparing the permissible
error in the horizontal plane (HDOP) of the internal receiver and the
external GPS antenna. The receiver, whose error will be smaller, is
selected as the main source of GPS data. Moreover, if the permissible
error of the currently active source lies within the specified value (the
default is 300), then switching to another signal source with a lower error
will not occur.
By default, priority is set for the internal receiver of the device. To
change the priority there is a new special parameter ID_Conf 5017
(
Appendix 1 ).