Digital Systems DSF22 Instructions de montage
DSF22
INSTALLATION AND SETUP GUIDE
1/7/2015
DSF22 UNIQUE MONITORING TERMINAL
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INSTALLATION AND SETUP GUIDE
Contents
Wiring diagram.............................................................................................................................................. 4
Description of wires. ................................................................................................................................. 4
Connection with backup battery. ................................................................................................................. 5
Settings related to digital input status change alert. ................................................................................ 6
Fuel control module. ..................................................................................................................................... 7
Using a vehicle’s standard fuel sensor. ..................................................................................................... 7
Usual connection diagram for standard fuel sensor. ................................................................................ 7
Fuel sensor imitation mode ...................................................................................................................... 7
Settings related to standard fuel sensor usage. ....................................................................................... 8
Using of additionally installed fuel sensor. ............................................................................................... 9
Connection diagram for additional fuel sensor. ....................................................................................... 9
Settings related to additional fuel sensor usage. ..................................................................................... 9
Measured fuel data procession. ................................................................................................................. 10
How data procession works? .................................................................................................................. 10
Settings related to fuel data processing. ................................................................................................ 10
Status indication LED. ................................................................................................................................. 11
GPS module status (Red LED).................................................................................................................. 11
GSM module status (Green LED). ........................................................................................................... 11
Connectivity status (Yellow LED). ............................................................................................................ 11
Fuel theft alarm........................................................................................................................................... 12
How it works? ......................................................................................................................................... 12
Settings related to fuel theft alarm. ....................................................................................................... 13
Vehicle’s battery supervisor........................................................................................................................ 13
How it works? ......................................................................................................................................... 13
Settings related to battery supervisor usage. ......................................................................................... 13
GPRS connection limiter ............................................................................................................................. 14
Settings related to GPRS connection limiter. .......................................................................................... 14
SMS commands. .......................................................................................................................................... 15
Syntax of SMS commands. ...................................................................................................................... 15
Read commands ...................................................................................................................................... 15
Write commands ..................................................................................................................................... 15
DSF22 UNIQUE MONITORING TERMINAL
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INSTALLATION AND SETUP GUIDE
List of all parameters. ............................................................................................................................. 16
Description of parameters. ..................................................................................................................... 17
Technical parameters. ................................................................................................................................. 42
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INSTALLATION AND SETUP GUIDE
Wiring diagram.
Description of wires.
Purpose of wire
Colour of
the wire
Description
Power supply
Red
This wire used to power a GPS/GSM monitoring terminal, must
be connected to positive terminal of vehicle’s battery. Power
supply must be within range 7…36 Volts.
Ground
Black
This wire must be connected to negative terminal of vehicle’s
battery or to vehicle’s chassis.
Ignition input
Yellow
This wire used to monitor a status of vehicle’s ignition, and
switch monitoring terminal from idle to tracking mode. Must be
connected to ignition switch, voltage range for this input must be
within 7…36 Volts (ignition ON state).
Universal digital pin
Green
This is universal pin, by default it’s configured as digital input,
can be used to monitor a status of electrical equipment in the
vehicle, such as lights, door opening, etc.
Can be configured as digital Open-collector output, max load
500mA. Can be used for remote activation some of vehicle
systems, such as lights, heater, etc.
Digital output
Grey
Open-collector output, max load 500mA. Can be used for remote
activation some of vehicle systems, such as lights, heater, etc.
Vehicle’s fuel sensor
input
Blue
Specialized Analog input for vehicle’s standard fuel sensor
connection. See section Connection diagram for standard fuel
sensor.
Vehicle’s fuel sensor
output
Brown
Specialized output used for vehicle’s standard fuel sensor
connection. See section Connection diagram for standard fuel
sensor.
Analog input
Violet
Universal Analog input, voltage measurement range 0…30 volts,
resolution 12 bits.
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INSTALLATION AND SETUP GUIDE
Connection with backup battery.
In some cases where continuous working of terminal is required, even when vehicle’s battery has been
disconnected, it is possible to connect external backup battery. Using this possibility, terminal will
continue working after vehicle’s battery disconnection, and if it’s necessary, terminal can send alert SMS
about vehicle’s battery disconnection. Picture below shows correct connecting diagram:
In case if SMS alert about vehicle’s battery disconnection is desired, following connection must be done:
DSF22 UNIQUE MONITORING TERMINAL
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INSTALLATION AND SETUP GUIDE
Note!!!
Both diodes must be with appropriate forward current, at least 3 Amps, otherwise terminal may
have power drops during data transmissions.
Recommendation!
To keep backup battery charged, we suggest adding a resistor, connected to backup battery
positive terminal and vehicle’s ignition. This connection will provide small charge current for
backup battery during driving.
To activate SMS alert, follow these steps:
1. Set universal digital pin to digital input working mode, P35 must be set to 0;
2. Define User phone numbers to receive SMS alerts, set P42 and/or P48;
3. Enable digital Input status change alert, define alert condition; P62 set to 2
From this moment digital input status change alert is enabled, in case if voltage in green wire will be
lost, terminal will send SMS alert to defined numbers.
Note!!!
In case of digital input status changes, terminal will send only one SMS alert to each defined number,
after that digital input status change alarm becomes passive. Switch ignition ON and then OFF to
activate input status change alarm again.
Settings related to digital input status change alert.
Parameter
Required
value
Comments
P35
0
Configure universal pin as digital input
P42
+xxxxx
User’s phone number 1 (to receive alert SMS)
P48
+xxxxx
User’s phone number 2 (to receive alert SMS)
P62
2
Enable SMS alert, define conditions to trigger alert
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INSTALLATION AND SETUP GUIDE
Fuel control module.
There are two possible ways to control fuel consumption, each of them have the benefits and
drawbacks, described below. Installer must select one of following options.
Using a vehicle’s standard fuel sensor.
There is specially designed input to read a vehicle’s standard fuel sensors. As the benefit, this method
allows get information about fuel level without installing additional fuel sensors, this saves money and
time spent for installation. As the drawback of this method is precision of measurements - it can range
from 1 up to 10%, and it is related to vehicle’s fuel sensor type and condition.
Usual connection diagram for standard fuel sensor.
Picture below shows typical connection diagram suitable for most of vehicles. This connection does not
require any external components.
Fuel sensor imitation mode
For some vehicles, especially latest models of construction machinery and tractors, additional resistor
must be connected; otherwise connection to standard fuel sensor may trigger fault codes on vehicle’s
dashboard.
Resistor value depends on vehicle’s fuel sensor resistance – it’s recommended to use resistor with the
same resistance as vehicle’s fuel sensor or very close to this.
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INSTALLATION AND SETUP GUIDE
Correct connection diagram for fuel sensor imitation shown in the picture below.
After connecting additional resistor, installer must activate fuel sensor imitation mode in terminal,
following these steps:
1. Configure universal Digital pin to work as Digital output mode by setting P35 to 1
2. Enable “Fuel sensor imitation mode” by setting P33 to1
Note!!!
In case if universal digital pin is configured as digital output (P35 = 1), then this pin cannot be used
as digital input at the same time.
Settings related to standard fuel sensor usage.
Parameter
Required
value
Comments
P31
0
Enable specialized input for reading a vehicle’s standard fuel sensor
P32
15-255
Fuel measurement frequency (we recommend to leave default value)
P33
1 or 0
Enable/Disable Fuel sensor imitation mode
P35
1 or 0
Universal digital pin work mode (output or input)
P50
1 or 0
Enable/Disable fuel data processing (filtering)
P51
5-255
Fuel data processing depth (used only if P50=1)
P52
0-2
Fuel measurement conditions (see description later in this document)
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INSTALLATION AND SETUP GUIDE
Using of additionally installed fuel sensor.
It is possible to use additionally installed capacitive fuel sensor. As the benefit of this method is high
precision of measurements, it is around 0.2-1%. As the drawbacks of this method is high costs related to
the price of fuel sensor and difficult installation. As other drawback is limited possibilities to install
additional sensors – in most cases it is possible to install additional sensors only on trucks, tractors and
construction machinery, no possibilities for passenger cars and commercial vans.
Connection diagram for additional fuel sensor.
Settings related to additional fuel sensor usage.
Parameter
Required
value
Comments
P31
1
Enable external Analog input.
P50
1 or 0
Enable/Disable fuel data processing (filtering)
P51
5-255
Fuel data processing depth (used only if P50=1)
P52
0-2
Fuel measurement conditions (see description later in this document)
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INSTALLATION AND SETUP GUIDE
Measured fuel data procession.
As vehicle usage is subjected to different movements, it’s difficult to calculate actual amount of fuel
using usual methods. We recommend to enable our unique data procession algorithm, as result of data
procession you will get correct amount of fuel.
How data procession works?
Data procession algorithm is using several input criteria, such as vehicle position (based on
accelerometer), driving speed and driving angle. Based on these parameters, terminal makes data
procession and averaging as result a correct fuel data will be sent to the monitoring server.
Next two pictures demonstrate a difference between processed fuel data and raw data. First picture
shows a fuel curve without using data procession.
Next picture demonstrate a fuel curve using data procession.
Settings related to fuel data processing.
Parameter
Required
value
Comments
P50
1 or 0
Enable/Disable data processing (filtering)
P51
5-255
Fuel data processing depth (used only if P50=1)
P53
1-255
Valid fuel data wait time
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