6-8 869 MOTOR PROTECTION SYSTEM – COMMUNICATIONS GUIDE
INTEROPERABILITY CHAPTER 6: IEC 60870-5-104
□ Measured value, normalized value: M_ME_NA_1, M_ME_TA_1, M_ME_ND_1, and
M_ME_TD_1.
□ Measured value, scaled value: M_ME_NB_1, M_ME_TB_1, and M_ME_TE_1.
□ Measured value, short floating point number: M_ME_NC_1, M_ME_TC_1, and
M_ME_TF_1.
Station interrogation:
⊠ Group 1.
⊠ Group 2.
⊠ Group 3.
⊠ Group 4.
⊠ Group 5.
⊠ Group 6.
⊠ Group 7.
⊠ Group 8.
⊠ Group 9.
⊠ Group 10.
⊠ Group 11.
⊠ Group 12.
⊠ Group 13.
⊠ Group 14.
⊠ Group 15.
⊠ Group 16.
⊠ Global.
Clock synchronization:
⊠ Clock synchronization (optional, see Clause 7.6).
□ Day of week used.
□ RESI, GEN (time tag substituted/not substituted)
□ SU-bit (summertime) used.
Command transmission:
⊠ Direct command transmission.
□ Direct setpoint command transmission.
⊠ Select and execute command.
□ Select and execute setpoint command.
⊠ C_SE ACTTERM used.
⊠ No additional definition.
⊠ Short pulse duration (duration determined by a system parameter in the outstation).
⊠ Long pulse duration (duration determined by a system parameter in the outstation).
⊠ Persistent output.
⊠ Supervision of maximum delay in command direction of commands and setpoint
commands.
Maximum allowable delay of commands and setpoint commands: 5 s.
Transmission of integrated totals:
⊠ Mode A: Local freeze with spontaneous transmission.
⊠ Mode B: Local freeze with counter interrogation.
⊠ Mode C: Freeze and transmit by counter-interrogation commands.
⊠ Mode D: Freeze by counter-interrogation command, frozen values reported
simultaneously.
⊠ Counter read.
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