MECHANISM OF CAN (CONTROLLER AREA NETWORK) SYSTEM-RELATED MODULE STRUCTURE

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• The CAN system related module consists of a power supply circuit, CPU, input/output interface, and twisted pair wiring harnesses.
• With the utilization of twisted pair wiring harnesses, the now-redundant input/output parts integrated in the conventional modules have been simplified.
• The CAN system related module is completely controlled by the CPU.
• The CPU consists of a multiplex block and computation processing block.
• Each component part has the following functions:

Component | Function
--- | ---
Electrical circuit | Supplies power to the CPU and surrounding area and input/output interface.
CPU | Computation processing block | When transmission is necessary, transmission data is written to the multiplex block. In addition, when a transmission data write command is received from the multiplex block, the received data is written.
Multiplex block | Receives data from twisted pair wiring harnesses and sends it to the computation processing block. Sends data written by the computation processing block via the twisted pair wiring harnesses.
Input interface | Changes the electrical properties of information, such as switch information, to information which can be input to the CPU.
Output interface | Changes the electrical properties of the CPU output in order to drive devices such as motors.

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