Entry type: FAQ, Entry ID: 19188460, Entry date: 03/13/2014

Which hardware can be connected to the USB port of HMI operating devices?

  • Entry
  • Associated product(s)

Configuration Notes
You can connect the following devices to the USB port of HMI operating devices. For which panels have a USB interface, refer to Entry ID: 21847868.

Device Comments
USB mouse
USB keyboard
The Windows CE operating system on the operator panels does not support German umlaut characters.
USB keyboard with trackball or touchpad The following operator panels were tested by way of example with both keyboards.
  • MP277
  • TP177B
  • Thin Client

The Windows CE operating system on the operator panels does not support German umlaut characters.

USB stick See Entry ID: 21847868.
USB printer See Entry ID: 11376409.
Mobile hand-held barcode reader for 1D / 2D codes Recommended hand-held barcode readers

Please note, only use barcode readers which convert the barcode internally into an ASCII keyboard code.

Fig. 01

A detailed description of the devices is available in the relevant manuals in the following entry IDs.

  • SIMATIC MV320/ SIMATIC MV325 (Entry ID 78905254).
  • SIMATIC MV340 (Entry ID 61909865).
USB Hub 4
The Industrial USB Hub 4 primarily serves as USB hub for the connection of peripheral devices to Panels, Multi Panels and Panel PCs with integrated USB interface. The simultaneous connection of up to four peripheral devices - such as USB stick, printer, keyboard, mouse, hand-held barcode reader - to one panel is possible with the Industrial USB Hub 4.

Fig. 02

Additional information about the Industrial USB Hub is available in the ST80 catalog and Entry ID: 23577105.


  • The above recommendations do not reflect any official endorsement of equipment - except for the Industrial USB Hub 4. They simply represent a recommendation which is based on previous experience. In other words, responsibility for the use of these devices rests with you.
  • The current carrying capacity of the USB port differs depending on the type of operator panel. Refer to the relevant device manual in each case for precise specifications. It might therefore be necessary to provide an extra power supply for the device connected, for example, via the Industrial USB Hub 4.

Additional Keywords
USB devices, Trackball, Barcode scanner, Data Matrix Code, DMC