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Technical data
38
Automation Panel 9xD - Hygienic design User's manual V 1.80
4.1.4.1.7 USB interfaces
The link module is equipped with a USB 2.0 (Universal Serial Bus) host controller with several USB ports, of which
2 USB interfaces are routed externally and freely available to the user.
Warning!
USB peripheral devices can be connected to the USB interfaces. Due to the variety of USB devices
available on the market, B&R cannot guarantee their functionality. The functionality of USB devices
available from B&R is ensured.
Caution!
Due to the general PC specification, this interface must be handled with the utmost care with regard
to EMC, cable routing, etc.
USB1, USB2
Depending on the transfer method (SDL or DVI operation), there are limitations regarding the transfer rate for
interfaces USB1 and USB2. For possible transfer methods, see section
"Connection options" on page 16
.
Transfer method
USB type
Max. cable length
SDL operation without USB cable
USB 1.1
40 m
1)
SDL operation with USB cable
USB 2.0
5 m
Single-touch DVI operation
USB 2.0
5 m
Multi-touch DVI operation
USB 2.0
5 m
1)
The max. cable length of 40 m depends on the resolution. For exact specifications, see table
Cable lengths and resolutions for SDL transfer
On AP99D systems (panels with operating elements), the USB2 interface is not available for the user. With AP99D
≤ Rev. A0, it is taken up by the RFID transponder; with AP99D ≥ Rev. A2, it is used for the front USB interface. If
the USB cable is unplugged, the RFID transponder or front USB interface is disabled.
USB1 - 2
Standard
USB 2.0
Variant
Type A, female
Transfer rate
Low speed (1.5 Mbit/s)
Full speed (12 Mbit/s)
High speed (480 Mbit/s)
Current-carrying capacity
1)
USB1 (1)
USB2 (2)
Total max. 1 A
Cable length
USB 2.0
Max. 5 m (without hub)
1)
The USB interfaces are protected by a shared maintenance-free "USB current-limiting switch" (total max. 1 A).
4.1.4.1.8 Brightness controls
The brightness controls can be used to set the brightness of the backlight
on the Automation Panel in DVI operation. Buttons have no function during
SDL operation; the brightness can be set via the B&R Control Center, for
example.