Considering strong disturbance environment in the field area, redundant design in bus cable, CAN controller and driver is involved to assure the reliability of data transmission.

考虑到现场的环境干扰较强，对总线电缆及CAN控制器、驱动器采用了冗余设计，保证数据传输的可靠性。

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To transfer instrument commands and data on the bus, the Controller addresses one Talker and one or more Listeners.

为了在总线上传输仪器命令和数据，控制器给一个呼叫口和一个或几个响应口分配地址。

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To avoid interfering by work, data were sampled through a multi-layers network which synthesize the field-bus and Ethernet and center on programmable logic controller.

为了排除人为干扰、提高可靠性，采集数据以可编程逻辑控制器为核心，通过现场总线和以太网的多层网络传送至数据库中。

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