Connecting A Usb Device - Siemens SIMATIC 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 memory stick
● Industrial USB Hub 4
Note when connecting
NOTICE
USB type A interface not suitable for commissioning
The USB type A interface is only intended for connecting 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 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
an 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 207).
Comfort Panels
Operating Instructions, 03/2012, A5E03404994-02
Industrial USB hub 4 can be obtained using order number 6AV6671-3AH00-0AX0.
Mounting and connecting the HMI device
3.3 Connecting the device
49