USER HANDBOOK 1.0 | DC2115, ET2115
Berghof Automation GmbH | Harretstrasse 1 | 72800 Eningen | www.berghof.com
21-0099-82-00-00-003 | 270010900_Anwenderhandbuch_DC-ET2115_EN.docx
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5.2.7. USB
Devices with a USB interface can be connected to the USB host port (Rev. 2.0). Suitable USB device classes
are:
CODESYS user: only USB stick
Linux level: USB stick or mouse
Fig. 21: USB interfaces X3 and X5 (DC2115)
Assignment of USB interface connectors X3 and X5 (DC2115)
Pin
Assignment
Pin
Assignment
B1
VCC
B3
D+
B2
D–
B4
GND
NOTE
Damage to USB stick and malfunction due to data loss!
Removing a USB stick while it is still in use and data are being transferred can
render the USB stick unusable. Open files which cannot be accessed due to
removal of the USB stick can block the device.
Therefore ensure that all operations are complete before removing the
USB stick.
NOTE
Damage to property and malfunctions due to data loss!
The USB interface is protected against overloading (> 0.5 A). In the event of a
short circuit during operation, the control unit may trigger a reset of the system.
Substantial property damage and damage to the USB device may ensue.
Before using a USB device, check carefully its power requirements.
NOTE
Failures and malfunctions will occur if direct connections are made to
signal earth!
Use only USB devices that have no direct connection between signal earth
and the housing.
The USB interface connector is designed to withstand 1,000 insertion and withdrawal cycles.