7SR18 Description Of Operation
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6.6 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: -
SYSTEM CONFIG>OPERATING MODE setting, a Binary Input or Command
Table 6.6-1 Operating Mode
Rear Ports Enabled Disabled Disabled
Fascia (Control Mode) Disabled Enabled Disabled
USB Disabled Enabled Disabled
Binary Inputs Setting Option Setting Option Enabled
Binary Outputs Enabled Enabled Disabled
Spontaneous
IEC Enabled Enabled Disabled
DNP Enabled Enabled Disabled
General Interrogation
IEC Enabled Enabled Disabled
DNP Enabled Enabled Disabled
MODBUS Enabled Enabled Disabled
Rear Ports Enabled Disabled Enabled
Fascia Enabled Enabled Enabled
USB Disabled Enabled Enabled
Waveform Records Enabled Enabled Enabled
Event Records Enabled Enabled Enabled
Fault Information Enabled Enabled Enabled
Setting Information Enabled Enabled Enabled
6.7 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.
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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