18.3.2.1 Specific settings related to the IEC 61850-9-2LE communication
SEMOD166590-24 v5
The process bus communication IEC 61850-9-2LE have specific settings, similar to the analog
inputs modules.
Besides the names of the merging unit channels (that can be edited only from PCM600, not
from the local HMI) there are important settings related to the merging units and time
synchronization of the signals:
When changing the sending (MU unit) MAC address, a reboot of the IED is
required.
If there are more than one sample group involved, then time synch is mandatory and the
protection functions will be blocked if there is no time synchronization.
SmpGrp
– this setting parameter is not used
CTStarPointx
: This parameter specifies the direction to or from object. See also section
"Setting of current channels".
AppSynch
: If this parameter is set to
Synch
and the IED HW-time synchronization is lost or the
synchronization to the MU time is lost, the protection functions in the list
45 will be blocked
and the output SYNCH will be set.
SynchMode
: marks how the IED will receive the data coming from a merging unit:
• if it is set to
NoSynch
, then when the sampled values arrive, there will be no check on the
“SmpSynch” flag
• If it is set to
Operation
, the “SmpSynch” flag will be checked all time.
• setting
Init
, should not be used
For more information on the settings, see “MU1_4I_4U Non group settings (basic)” table.
18.3.2.2 Loss of communication
GUID-29EFBCB7-2B4F-4AA1-B593-8E89838722E0 v2.1.1
If IEC 61850-9-2LE communication is lost, see examples in figures
202, 203 and 204, the
protection functions in table 45are blocked.
Case 1:
IEC13000298 V1 EN-US
Figure 202: Normal operation
Case 2:
1MRK 511 358-UEN A Section 18
Station communication
413
Application manual
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