View source for Immobilizer configuration explained

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'''Functionality description is based on latest firmware - 55.01.02.Rev.01.'''

=Immobilizer's functional purpose=

Immobilizer prevents anyone from starting the transport without scanning an iButton key/RFID card with a reader or until device detects BLE Beacon first.

{| style="width: 100%"
|[[Image:TFT100_Immobilizer.png|right]]
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'''DOUT, that is selected under Output Control section will turn to High state (1) and <u>block engine</u> in such cases:'''
*Ignition is detected (if ''Depend On Ignition'' is '''enabled''');
*Immediately after scenario is enabled in any priority (if ''Depend On Ignition'' is '''disabled''').
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'''If iButton key/RFID card is scanned with a reader or BLE beacon is detected, then DOUT switches to Low state (0) and the <u>engine can be started</u>.'''
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If ignition will be turned OFF in authorized state, then after ''Ignition Off timeout'' configured value passes, DOUT will be set to High level (1) and authorization procedure will be required again.
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=Functionality examples=

==Example No. 1==

{| style="width: 100%"
|[[Image:Immobilizer example no 1.png|left]]

'''Configuration:'''
<br>
<br>
''<u>Features section</u>''
*Immobilizer scenario - High priority;
*Output Control - DOUT2;
*iButton List Check - Enable;
*Depend On Ignition - '''Enable''';
*Ignition Off Timeout - 30.
<br>
''<u>System section</u>''
*Ignition Source - DIN1;
*Input/Output Mode - Digital Output 2 selected.
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If ''Depend On Ignition'' is '''Enabled''' and wiring is done following [[Media:Immobilizer-testing-scheme.png|this]] scheme, then you enable Immobilizer feature, DOUT stay at low level (0) and waits for ignition to be detected with DIN1. After ignition is detected (Ignition=1), DOUT switches to high level (1) preventing the starting of the engine and waits for authorization.

After attaching iButton/RFID or detecting BLE beacon, DOUT switches back to low level (0) allowing the engine to be started fully. When ignition is switched OFF (Ignition=0), ''Ignition Off timeout'' starts countdown. After this countdown passes, functionality resets, meaning that after Ignition will be detected again (Ignition=1), DOUT will switch to high level (1) and ask for authorization again.

==Example No. 2==

{| style="width: 100%"
|[[Image:Immobilizer example no 2.png|right]]

'''Configuration:'''
<br>
<br>
''<u>Features section</u>''
*Immobilizer scenario - High priority;
*Output Control - DOUT2;
*iButton List Check - Enable;
*Depend On Ignition - '''Disable''';
*Ignition Off Timeout - 30.
<br>
''<u>System section</u>''
*Ignition Source - DIN1;
*Input/Output Mode - Digital Output 2 selected.
|}
If ''Depend On Ignition'' is '''Disabled''' and wiring is done following [[Media:Immobilizer-testing-scheme.png|this]] scheme, then when you enable Immobilizer feature, DOUT '''immediately''' switches to high level (1) '''without waiting''' for Ignition. 

After attaching iButton/RFID or detecting BLE beacon, DOUT switches back to low level (0) and Ignition switches to high level (1) allowing the engine to be started fully. 

When iButton/RFID is removed from the reader and Ignition is switched OFF, ''Ignition Off timeout'' parameter is considered to be ''RFID Off timeout'' and after configured time passes, DOUT switches back to high level (1) and ignition switches to low level (0).

==Example No. 3==

{| style="width: 100%"
|[[Image:Immobilizer example no 3.png|left]]
'''Configuration:'''
<br>
<br>
''<u>Features section</u>''
*Immobilizer scenario - High priority;
*Output Control - DOUT2;
*iButton List Check - Enable;
*Depend On Ignition - '''Disable''';
*Ignition Off Timeout - 30.
<br>
''<u>System section</u>''
*Input/Output Mode - Digital Output 2 selected.
|}
If ''Depend On Ignition'' is '''Disabled''' and wiring is done following scheme below ('''without using DIN wire for Ignition'''), then when you enable Immobilizer feature, DOUT '''immediately''' switches to high level (1).

After attaching iButton/RFID or detecting BLE beacon, DOUT switches back to low level (0).

When iButton/RFID is removed from the reader, ''Ignition Off timeout'' parameter is considered to be ''RFID Off timeout'' and after configured time passes, DOUT switches back to high level (1).

[[Image:Immobilizer scheme for example no 3.png|center]]



[[Category: TFT100 FAQ]]