ABB Relion 670 Series Applications Manual page 506

Section 21
Basic IED functions
The IEC 61850-7-4 gives a detailed overview over all aspects of the test mode and other states of
mode and behavior. The status of a function block behavior
Main menu/Test/Function status/Function group/Function block descriptive name/LN name/
Outputs.
• When the
control commands with a test bit are accepted.
• When the
are accepted. Outputs to the process via a non-IEC 61850 link data are blocked by the function
block. Only process-related outputs on function blocks related to primary equipment are
blocked. If there is an XCBR function block used, the outputs
blocked.
• When the
accepted. Outputs to the process via a non-IEC 61850 link data are blocked by the function
block. In addition, the function block can be blocked when their
done if the function block has a block input.
The block status of a component is shown on the LHMI as the
for Beh: Main menu/Test/Function status/Function group/Function block descriptive name/LN
name/Outputs. If the
21.12.2 Setting guidelines
Remember always that there are two possible ways to place the IED in the
state. If, the IED is set to normal operation (
shown being in the test mode, the input signal IED_TEST on the TESTMODE function block is
activated in the configuration.
Forcing of binary input and output signals is only possible when the IED is in IED test mode.
21.13 Time synchronization
21.13.1 Application
Use time synchronization to achieve a common time base for the IEDs in a protection and control
system. This makes it possible to compare events and disturbance data between all IEDs in the
system. If a global common source (i.e. GPS) is used in different substations for the time
synchronization, also comparisons and analysis between recordings made at different locations
can be easily performed and a more accurate view of the actual sequence of events can be
obtained.
Time-tagging of internal events and disturbances are an excellent help when evaluating faults.
Without time synchronization, only the events within one IED can be compared with each other.
With time synchronization, events and disturbances within the whole network, can be compared
and evaluated.
In the IED, the internal time can be synchronized from the following sources:
• BIN (Binary Minute Pulse)
• DNP
• GPS
• IEC103
• SNTP
500
Beh of a function block is set to Test , the function block is not blocked and all
Beh of a function block is set to Test/blocked , all control commands with a test bit
Beh of a function block is set to Blocked , all control commands with a test bit are
Blk output is not shown, the component cannot be blocked.
Beh is shown on the LHMI under the
EXC_Open and EXC_Close are
Blk output under the same path as
TestMode = Disabled ), but the functions are still
1MRK 511 358-UUS A
Beh is blocked . This can be
TestMode = Enabled "
Application manual
M15260-3 v7
IP1750-1 v1
M11345-3 v9