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["2019-07-05","V104","V108","从机版本V108","1、默认是登录的状态。\n2、15S一次心跳。\n3、登录后后做3次从机扫描处理，来确认个数，以提高效率。后续只会扫描这些从机，如新增从机则需重启。\n4、新增RT+XH指令，发送进入写号模式。\n5、修改协议\n\n\n"]

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