The M group provides various calculated values derived from the direct analogue quantity measurements associated with the T group Logical Nodes. These M Logical Node values are typically going to be transmitted as polling or Reporting using client/server as defined in IEC 61850-8-1. | Excerpt |
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| Logical Node | Application |
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| 1 | MENV | Environmental information | | 2 | MFLK | Flicker measurement | | 3 | MFLW | Flow measurements | | 4 | MFUL | Fuel characteristics | | 5 | MHAI | 3ph Harmonics | | 6 | MHAN | 1ph Harmonics - Non-phase-related harmonics or interharmonics | | 7 | MHET | Heat measured values | | 8 | MHYD | Hydrological information | | 9 | MMDC | DC measurement | | 10 | MMET | Meteorological information | | 11 | MMTN | 1ph Wh, Varh varh or VAh | | 12 | MMTR | 3ph Wh, Varh varh or VAh | | 13 | MMXN | Non-phase-related measurement | | 14 | MMXU | r.m.s. I, V and F and giving W, Varvar, VA and PF. | | 15 | MPRS | Pressure measurements | | 16 | MSQI | Positive, Negative and Zero sequence components |
MSTA | statistics MAX,MIN, AVG - no longer required in the Standard - see Part7-4 Ed2 Annex C |
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