7SR11 & 7SR12 Description Of Operation
©2017 Siemens Protection Devices Limited Chapter 1 Page 85 of 88
6.7 Operating Mode
The relay has three operating modes, Local, Remote and Out of Service. The following table identifies the
functions operation in each mode.
The modes can be selected by the following methods:
SETTINGS MODE>SYSTEM CONFIG>Relay Mode setting, a Binary Input or Command
Table 6-1 Operating Mode
USB/Rear Ports set to REMOTE *
USB/Rear Ports set to LOCAL *
USB/Rear Ports defined REMOTE *
USB/Rear Ports defined as LOCAL *
USB/Rear Ports defined LOCAL or
REMOTE *
*Each Communication port has a setting to allow the user to determine which port is used for local operation and
which port is used for remote operation. If the port is set to Local or Remote, the port can be used for all
operations and has no priority.
The communication port modes can be selected at:
SETTINGS MODE>SYSTEM CONFIG>Communications
6.8 Control Mode
This mode provides convenient access to commonly used relay control and test functions. When any of the items
listed in the control menu are selected control is initiated by pressing the ENTER key. The user is prompted to
confirm the action, again by pressing the ENTER key, before the command is executed.
7SR1102-1*A12-*AA0 models with ‘A’ variant software do not support Control Mode.
Note that a CB must be in a Closed state before an Open command will be accepted. And that a CB must be in
an Open state before a Close command will be accepted. If not, the Relay reports that the requested command is
‘Interlocked’.
Note also that switching a protection function IN / OUT via the Control Menu will not change that function’s
ENABLED / DISABLED setting. The Control Menu selection will over-ride the setting, however.
Control Mode commands are password protected using the Control Password function – see Section 6.10.
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