ProSoft Technology PLX8X-MNET-61850 - Manual (Page 184)

PLX8x-MNET-61850 ♦ Communication Gateway
User Manual Modbus TCP/IP to IEC 61850
Page 184 of 228 ProSoft Technology, Inc.
May 14, 2014
6.7.4 Measuring and Metering
Statistical evaluation of measured quantities, determining minimum and
maximum values over a period of time, and creating history of this information,
such as:
 currents, voltage, power and impedance in a three phase system (MMXU)
 calculation of energy in a three phase system (MMTR)
 calculation of harmonics and interharmonics (MHAI)
6.7.5 Supervision and Protection
Evaluating measured quantities for the purpose of detecting dangerous
situations, such as
 Supervision of the quantities of an insulation medium in Sxxx logical nodes
(Sxxx = logical nodes for monitoring by sensors = SIMS, SARC, and SPDC)
 Processing of quantities in Pxxx logical nodes (Pxxx = logical nodes for
protection = PTEF, PZSU, PDIS, PVPH, PTUV, PDPR, PWDE, PUCP,
PUEX, PPBR, PPBV, PMSU, PTTR, PROL, PSOL, PIOC, PTOC, PVOC,
PPFR, PTOV, PDOV, PVCB, PHIZ, PREF, PSEF, PITF, PDOC, PDEF,
PDCO, PPAM, PFRQ, PDIF, PPDF, PLDF, PNDF, PTDF, PBDF, PMDF, and
PGDF)
Upon detection of a dangerous situation, the system then initiates action.