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数据点内查看数据是在线的,但是在数据管理里看是掉线状态
数据管理中的在线状态1.和你在设备配置里面设置的超时时间有关,如果有数据但是超过了超时时间也是会显示掉线的2.列表中的在线状态是定时轮询的,默认是2分45秒轮询一次