Siemens SIMATIC PC 670 Equipment Manual page 43

Release 04/02
USB device connection
Individual or several USB devices can be connected to the USB interfaces.
S Plug in the USB device connector into one of the USB interfaces.
The device is detected by the Plug and Play operating system. Any necessary
drivers are requested by the operating system.
If more than two USB devices are to be connected, use a HUB. Both interfaces
can be used as High Current interfaces.
Figure 3-6
Notice
Operating systems which do not support "plug and play" (e.g. Windows NT 4.0) do
not generally permit operation of USB devices.
Devices which do not have a USB plug (e.g. printer) can be connected to the USB
interface via an adapter.
Panel PC 670 Computing Unit, Equipment Manual
Connecting and Switching on the Computing Unit
USB interfaces
USB connection ports
3-9