Connecting A Usb Device - Siemens SIMATIC HMI KP400 Comfort Operating Instructions Manual

3.3.6

Connecting a USB device

Below are examples of devices you can connect to the USB type A interfaces of the HMI
device:
● External mouse
● External keyboard
● Printer
● USB stick
● Industrial USB Hub 4, article number 6AV6671-3AH00-0AX0
● Mobile handheld reader ("Barcode Scanner"), article number 6GF3320-0HT01 or
6GF3340-0HT01
● Reader SIMATIC RF1060R ("RFID Reader"), article number 6GT2831-6AA50
Note when connecting
Note
USB type A interface not suitable for commissioning
The USB type A interface is only intended for the connection of peripheral devices.
Do not use the USB type A interface for commissioning or maintenance.
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".
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.
Functional problem with USB port
If you connect an external device with a 230 V power supply to the USB port without using a
non-insulated installation, you may experience functional problems.
Use a non-insulated system design.
Excessive rated load on port
A USB device with too high a power load may possibly cause functional problems.
Observe the values for the maximum load of the USB interface. You will find the values in
the section "Technical specifications" (Page 225).
Comfort Panels
Operating Instructions, 07/2017, A5E36770603-AB
Mounting and connecting the HMI device
3.3 Connecting the device
55