Operating instructions

Mounting and connecting

4.3 Connecting the HMI device

MP 377, MP 377 PRO (WinCC flexible)

Operating Instructions, 10/2008, 6AV6691-1DR01-0AB0

4.3.5 Connecting an uninterruptible power supply

Connection graphic

The following figure shows the connection between the uninterruptible power supply and

HMI device. The uninterruptible power supply is connected to the 24-V input and one of the

HMI device's USB ports.

When connected to the HMI device's USB port, the following uninterruptible power supplies

are supported:

SITOP DC UPS modules as of a rated power value of 6 A, e.g. 6EP1931-2DC42

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Note

Observe all the notes relating to connecting a power supply.