February 2012 22 – 361
22 Visual display unit
22.1 Introduction
BF 250 or
MC 6222
Depending on the main computer, the flat-panel display is either integrated in the housing of the MC
or is a stand-alone unit.
USB interfaces The integrated flat-panel display and the BF 250 feature an USB interface (USB 2.0) on their
front side.
The BF 250 has an additional USB hub (USB 2.0) with 4 USB interfaces on its back side.
Power distribution
switches
Main computer Flat-panel display Soft keys Screen
diagonal
Pixels
MC 6222
(in the console)
Integrated 8 horizontal and
6 vertical soft keys
15.1 inches 1024 x 768
MC 6241
(inside the
electrical cabinet)
BF 250
If USB components that are connected to the MC 6222 or BF 250 require more than 0.5 A,
a separate power supply becomes necessary for these components.
One possibility is the USB hub from HEIDENHAIN.
The MC 6222 and BF 250 feature power distribution switches.
These are electronic fuses that separate USB devices that draw too much current from the
MC 6222 or the BF 250.
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