ABB RES670 Applications Manual page 355

1MRK 511 407-UEN C
Phasor measurement unit RES670 2.2 IEC
Application manual
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.
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.
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.
Section 22
Basic IED functions
349