Usb Interface - Siemens 7SR224 Technical Manual

Setting name Range
I101 Background
Off, 1 ..1500 minutes
Period
2.1.3

USB Interface

The USB communication port is connected using a standard USB cable with a type B connection to the relay and
type A to the PC.
The PC will require a suitable USB driver to be installed, this will be carried out automatically when the Reydisp
software is installed. When the Reydisp software is running with the USB cable connected to a device an
additional connection is shown. Connections to these devices are not shown when they are not connected.
The USB communication interface on the relay is labelled Com 2 and its associated settings are located in the
Data communications menu. When connecting to Reydisp using this connection the default settings can be used
without the need to first change any settings, otherwise the Com 2 port must be set to IEC60870-5-103 (the relay
address and baud rate do not need to be set).
Setting name Range
1 ... 254
Station Address
OFF, IEC60870-5-103,
DNP3.0 or IEC60870-5-
COM2-USB Protocol
101, MODBUS-RTU,
ASCII
Local, Remote, Local Or
COM2 Mode
Remote
Local
Engineer
Access
USB Type A
Figure 2-1 Communication to Front USB Port
©2010 Siemens Protection Devices Limited
Default
Off
Default
0
IEC60870-5-
103
Local
USB Type A
socket on PC
USB Data Cable
7SR224 Argus Data Comms
Setting Notes
Period device will
generate background
data. Set to Off to disable
generating of background
As Required
data. Only data points
with the background flag
set will be generated in
the background.
Setting Notes
An address between 1 and
1-254
254 must be given to identify
the relay
Reydisp software uses
IEC60870-
IEC60870-5-103 to
5-103
communicate.
Local Selects port mode
USB Type B
Chapter 4 Page 6 of 76