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MECHANISM OF CAN SYSTEM-RELATED MODULE

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• A CAN system-related module is composed of an electrical circuit, CPU, and input/output interface.
• The size of the module has been reduced due to the elimination of the bulky, superfluous, input/output interface in the conventional type of electrical module.
• The CPU (multiplex block) controls all signals exchanged on the CAN harness.
• Communication with non-multiplex parts is carried out by conventional input/output interface.
• The functions of each component are shown below.

Component | Function
--- | ---
Electrical circuit | Supplies power to CPU and vicinity, and to input/output interface.
CPU | Computation processing block | Control function has been expanded, and when transmission is necessary, transmitted data is stored in a multiplex block. If a multiplex block receives a request to read stored data, transmitted data is read from the multiplex block.
Multiplex block | Transmits data received from bus line to computation processing block. In addition, sends transmitted data stored from computation processing block to bus line.
Input/Output interface | Electrically converts information signals from switches to, be input to CPU, and signals output from CPU for operating actuator or indicator lights.