GE Multilin L60 Line Phase Comparison System C-5APPENDIX C C.3 SERVER FEATURES AND CONFIGURATIONCC.3SERVER FEATURES AND CONFIGURATION C.3.1 BUFFERED/UNBUFFERED REPORTINGIEC 61850 buffered and unbuffered reporting is provided in the GGIO1 logical nodes (for binary status values) and MMXU1to MMXU6 (for analog measured values). Report settings can be configured using the EnerVista UR Setup software, sub-station configurator software, or via an IEC 61850 client. The following items can be configured:• TrgOps: Trigger options. The following bits are supported by the L60:– Bit 1: data-change– Bit 4: integrity– Bit 5: general interrogation• OptFlds: Option Fields. The following bits are supported by the L60:– Bit 1: sequence-number– Bit 2: report-time-stamp– Bit 3: reason-for-inclusion– Bit 4: data-set-name– Bit 5: data-reference– Bit 6: buffer-overflow (for buffered reports only)– Bit 7: entryID (for buffered reports only)– Bit 8: conf-revision– Bit 9: segmentation• IntgPd: Integrity period.• BufTm: Buffer time.C.3.2 FILE TRANSFERMMS file services are supported to allow transfer of oscillography, event record, or other files from a L60 relay.C.3.3 TIMESTAMPS AND SCANNINGThe timestamp values associated with all IEC 61850 data items represent the time of the last change of either the value orquality flags of the data item. To accomplish this functionality, all IEC 61850 data items must be regularly scanned for datachanges, and the timestamp updated when a change is detected, regardless of the connection status of any IEC 61850 cli-ents. For applications where there is no IEC 61850 client in use, the IEC 61850 SERVER SCANNING setting can be pro-grammed as “Disabled”. If a client is in use, this setting should be programmed as “Enabled” to ensure the propergeneration of IEC 61850 timestamps.C.3.4 LOGICAL DEVICE NAMEThe logical device name is used to identify the IEC 61850 logical device that exists within the L60. This name is composedof two parts: the IED name setting and the logical device instance. The complete logical device name is the combination ofthe two character strings programmed in the IEDNAME and LD INST settings. The default values for these strings are “IED-Name” and “LDInst”. These values should be changed to reflect a logical naming convention for all IEC 61850 logicaldevices in the system.C.3.5 LOCATIONThe LPHD1 logical node contains a data attribute called location (LPHD1.DC.PhyNam.location). This is a character stringmeant to describe the physical location of the L60. This attribute is programmed through the LOCATION setting and itsdefault value is “Location”. This value should be changed to describe the actual physical location of the L60.
