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Entry type: FAQ Entry ID: 31255135, Entry date: 09/05/2008

Why should a SIMATIC PC not be switched on in the buffered UPS mode?

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A UPS protects a computer from sudden drops in supply voltage and related loss of data. The UPS immediately recognizes the loss of voltage provision and provides the computer with voltage a few milliseconds later from the built-in buffer battery. However, a UPS cannot supply the necessary switch-on current for the computer.

You should therefore only activate your computer when you have the required voltage/power supply.

UPS (Unterruptible power supply)

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