GE 345

1–56 345 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
ETHERNET INTERFACE CHAPTER 1: COMMUNICATIONS GUIDE
⊠ Group 14.
⊠ Group 15.
⊠ Group 16.
⊠ Global.
16. Clock synchronization:
⊠ Clock synchronization (optional, see Clause 7.6).
□ Day of week used.
□ RESI, GEN (time tag substituted/not substituted)
□ SU-bit (summertime) used.
17. 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.
18. 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.
⊠ Counter freeze without reset.
⊠ Counter freeze with reset.
⊠ Counter reset.
⊠ General request counter.
⊠ Request counter group 1.
⊠ Request counter group 2.
⊠ Request counter group 3.
⊠ Request counter group 4.
19. Parameter loading:
⊠ Threshold value.
□ Smoothing factor.
□ Low limit for transmission of measured values.
□ High limit for transmission of measured values.
20. Parameter activation:
□ Activation/deactivation of persistent cyclic or periodic transmission of the
addressed object.
21. Test procedure: