MULTI-BOARD COMMUNICATION SYSTEM AND METHOD USING RS485 PROTOCOL

摘要

A multi-board communication system and method using an RS485 protocol. An operating mode of the present invention mainly starts from initiation of communication of a master control board or slave control boards; the slave control boards have priorities in an ascending order according to slot numbers of slots where these boards are located; arbitration buses are applied for in an ascending order. Communication efficiency is improved by means of communication between multiple groups of RS485 and multiple boards.