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WEB网络发布有时候实时数据能不刷新、历史数据查询不到或者出现错误怎么解决？

【参考答案】

正确答案：数据连接没通讯上，在力控网络发布的时候数据传输和界面的发布使用的是不同的端口；在力控组态软件中默认的WEB服务......

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