ABB Relion 670 Series Applications Manual page 483

1MRK 505 370-UUS Rev. K
The DataObject Mod of the Root LD.LNN0 can be set on the LHMI under Main menu/Test/Function
test modes/Communication/Station communication /IEC61850 LD0 LLN0/LD0LLN0:1 to On, Off,
TestBlocked,Test or Blocked.
When the setting of the DataObject Mod is changed at this level, all Logical Nodes inside the logical
device update their own behavior according to IEC61850-7-4. The supported values of the function block
TESTMODE are described in Communication protocol manual, IEC 61850 Edition 2. When the function
block TESTMODE is in test mode the Start LED on the LHMI is turned on with steady light.
The parameter Mod of any specific function block can be configured under Main menu/Test/Function
test modes/Communication /Station Communication
The parameter Mod can be set on the LHMI to the same values as for the DataObject Mod of the Root
LD.LNN0 to On, Off, TestBlocked,Test or Blocked. For Example, Main menu/ Test/ Function test modes/
Differential protection/GeneratorDiff(87G,3Id/I>)/ GENPDIF(87G,3Id/I>):1.
It is possible that the behavior of the function block TESTMODE is also influenced by other sources as
well, independent of the mode communicated via the IEC61850-8-1 station bus. For example the
insertion of the test handle into the test switch with its auxiliary contact is connected to a BI on the IED
and further inside the configuration to the input IED_TEST on the function block TESTMODE. Another
example is when loss of Service Values appears, or as explained above the setting via the LHMI.
When setting via PST or LHMI the parameterOperation of any function in an IED is set to Off, the
function is not executed and the behavior (beh) is set toOff and it is not possible to override it. When a
behavior of a function is Off the function will not execute. The related Mod keeps its current state.
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 Beh is shown on the LHMI under the Main menu /
Test/Function status /Function group/Function block descriptive name/LN name/Outputs .
• When the Beh of a function block is set to Test, the function block is not blocked and all control
commands with a test bit are accepted.
• When the Beh of a function block is set to Test/blocked, all control commands with a test bit 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 EXC_Open and EXC_Close are blocked.
• When the Beh of a function block is set to Blocked, all control commands with a test bit are
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 Beh is blocked. This can be done if the
function block has a block input.
The block status of a component is shown on the LHMI as the Blk output under the same path as for
Beh: Main menu/Test/Function status/Function group /Function block descriptive name/LN name/
Outputs. If the Blk output is not shown, the component cannot be blocked.
20.12.2 Setting guidelines
Remember always that there are two possible ways to place the IED in the TestMode= Enabled" state. If,
the IED is set to normal operation (TestMode = Disabled), but the functions are still shown being in the
test mode, the input signal IED_TEST on the TESTMODE function block is activated in the configuration.
Busbar protection REB670
Application manual
When IEC 61850 Mod of a function is set to Off or Blocked, the Start LED on the LHMI
will be set to flashing to indicate the abnormal operation of the IED.
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Section 20
Basic IED functions
M15260-3 v7
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