Connecting A Usb Device - Siemens SIMATIC HMI KTP400 Basic Operating Instructions Manual

3.3.7

Connecting a USB device

Below are examples of devices designed for industrial use you can connect to the
USB type A interfaces of the HMI device:
● External mouse
● External keyboard
● USB stick
● Industrial USB Hub 4
Additional information is available in the section "Accessories (Page 15)".
Note when connecting
Note
Connect a USB mouse or USB keyboard only for commissioning and servicing purposes to
the USB port.
Note
USB 2.0 certified cable required
If you use a USB cable which is not USB 2.0 certified, errors may occur during data transfer.
Use only USB cables that are labeled "Certified HI-SPEED USB 2.0".
Note
USB cable length maximum 1.5 m
USB cables with lengths of more than 1.5 m do not ensure secure data transfer.
The cable may not be longer than 1.5 m.
Note
Functional problem with USB port
If you connect an external device with a 230 V power supply to the USB port without using
an non-insulated installation, you may experience functional problems.
Use a non-insulated system design.
Basic Panels 2nd Generation
Operating Instructions, 10/2016, A5E33293231-AB
Mounting and connecting
3.3 Connecting the HMI device
35