P12x/EN T/Eb6 - Schneider - error

P12x/EN CT/Eb6 CommunicationsIEC 60870-5-103 DATABASEPage 16 MiCOM P120/P121/P122/P1232.4 Relay re initializationIn case of relay re initialization, the relay send to the master station:Availability− A message indicating relay start/restart (FUN;INF ; TYP COT ) P120 to P123− or a message indicating Reset CU (FUN;INF ; TYP COT ) P120 to P123− or a message indicating Reset FCB (FUN;INF ; TYP COT ) P120 to P123Each identification message of the relay (ASDU 5) contains the manufacturer name in 8 ASCII characters (“Schneider Electric”) and 2 free bytescontaining: « 120 » or « 121 », or « 122 », or « 123 » in decimal format, then 2 free bytes containing the software version number in decimal (for ex. : 112corresponds to “11.C”).2.5 Cyclic Messages (ASDU9 and ASDU 77)Only measurands can be stored in these messages.The measurands values are stored in lower levels of communication, before polling by master station.Several of the fields in the ASDU 9 (FUN, INF ) are unused in the P120/P121/P122/P123 relay (Voltage and Power values), so they are set to0: Only RMS Ia, Ib, Ic values and frequency are stored in the P121/P122/P123 (with a rate such as: 2,4 * nominal value = 4096).Only frequency is stored inthe P120.The second ASDU is ASDU3.4 (FUN, INF), which contains in first position In earth current value in rated format (with a rate such as: 2,4 *nominal value = 4096). Vn value does not exist in the P120/P121/P122/P123 relay, so the second position value in ASDU3.4 is set to « unused ».Another ASDU is only used for P122/P123, ASDU 77 (FUN, INF ), which is a private ASDU, contains 4 other measurands: Iinverse and Idirectvalues, Thermal state (in %), in «short floating-point » format (IEEE 32 bits floating-point format). These values are not rated.with private option inactive: FUN,INF