Overview¶
With the AL-5010 it is possible to perform sensor emulation such as ultrasonic distance sensors, and airbag crash sensors. With the built-in fault insertion capabilities, it is possible to validate the effects of faulty wiring or corrupt sensors.
The module supports the following communication modes defined in the DSI3 specification:
Command and Response Mode
Periodic Data Collection Mode
The AL-5010 supports the following bus topologies: point-to-point, daisy-chain, and parallel.
Topology |
Bus In |
Bus Out |
---|---|---|
Isolated |
Front Connector |
Front Connector |
Serial Start |
Front Connector |
Next Channel |
Serial Middle |
Last Channel |
Next Channel |
Serial End |
Last Channel |
None |
Parallel From Master |
Front Connector |
Internal Bus |
Parallel From Bus |
Internal Bus |
Internal Bus |
Fault insertion (FIU) is available on each channel providing options for short to AUX1/F+, short to AUX2/F–, Pin to Pin Short, and Open Fault.
The reference (REF) of each channel can be Disabled (for fault insertion) or wired to DUT_GND.
Channel States / Modes¶
DISABLED - This channel is disabled.
ISOLATED - This channel is routed to the front connector only and is isolated from other channels on the board.
SERIAL_START - This channel is the first node in a serial chain. It is connected to an external master and to the next channel.
SERIAL_MIDDLE - This channel is a middle node in a serial chain. It is connected to the previous channel and to the next channel.
SERIAL_END - This channel is a last node in a serial chain. It is connected to the previous channel only.
PARALLEL_FROM_MASTER - This channel is connected to an external master and in parallel with one or more other channels on the module.
PARALLEL_FROM_BUS - This channel is connected in parallel with one or more other channels on the module.
Example Configurations¶
Example 1 - If you want the AL-5010 to simulate eight (8) sensors in series then you would configure it like this:
Hardware Connection:
Wire the master to CH1.MASTER
Software Configuration:
CH1 = SERIAL_START
CH2..CH7 = SERIAL_MIDDLE
CH8 = SERIAL_END
Example 2 - If you want to connect your master to all the channels on the AL-5010 then you would configure it like this:
Hardware Connection:
Wire the master to CH1.MASTER
Software Configuration:
CH 1 = PARALLEL_FROM_MASTER
CH2..Ch8 = PARALLEL_FROM_BUS
Fault Insertion Capabilities¶
OPEN - Open Fault or Safe Mode applied. Circuit is disconnected from the DUT.
NO_FAULT - No Faults applied and the card is operating normally.
PIN_TO_PIN - Short-Circuit between +/- pins.
AUX1 - Short-Circuit to AUX1/F+.
AUX2 - Short-Circuit to AUX2/F-.