Volvo Workshop Manuals
XC70 L5-2.5L Turbo VIN 59 B5254T2 (2003)
Powertrain Management > Computers and Control Systems > Information Bus > Component Information > Description and Operation > The Controller Area Network (CAN) > Page 4316
to the bus must withstand up to approximately 25 V.
Hint: The voltage on the communication wire is dependent on the supply voltage. The guideline is that the average value during communication is
The residue voltage level depends on the internal protection diodes in the control module.
The communication wire used on LIN is a single, unscreened conductor, which includes the most common cable harnesses in the vehicle. On account of
A = Frame
A message on LIN is called a frame and consist of the following parts:
1. Synchronisation interrupt.Used to wake slave nodes that are in sleep mode.
sent to be received correctly.
3. Identification field. Contains information about the contents of the message. All nodes can read and respond to a message, yet only one node has
the right to send a response to the message. Which node has the right to answer the message (send response data) is evident from the identifier.
4. Data information. The data sent can be two to eight bytes long. The data information is sent with the least significant bit first.
have occurred during the transmission which has corrupted the data. If an error has occurred in a message during transmission from the master
The slave nodes do not send an acknowledgement to a message that has been received correctly. The master node re-reads the message sent out on the
Example from an oscilloscope
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