现场总线在应用中主要考虑其通信电缆、通信电源故障，“T”型分支或终端电阻故障也会引起总线故障。

The main facts we should consider are the trouble caused by the communication cable, communication power, t type branch or the terminal resistor problem in the application of site bus technology.

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机器终端用电设备分布在机器的不同部分，电源指示面板或终端设备有可能存在强电的危害。

The terminal electrical devices of this welder are distributed at different positions. The power indication panel or terminal devices may have the danger of force electricity.

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负载传感自动检测自动对终端设备上的以太网在提供电源电源。

Automatic load sensing automatically detects power over Ethernet on the end device before providing power.

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