GE Multilin L60 Line Phase Comparison System D-7
APPENDIX D D.1 PROTOCOL
D
Spontaneous Transmission:
4 Spontaneous transmission
Double transmission of information objects with cause of transmission spontaneous:
The following type identifications may be transmitted in succession caused by a single status change of an information
object. The particular information object addresses for which double transmission is enabled are defined in a project-
specific list.
Single point information: M_SP_NA_1, M_SP_TA_1, M_SP_TB_1, and M_PS_NA_1
Double point information: M_DP_NA_1, M_DP_TA_1, and M_DP_TB_1
Step position information: M_ST_NA_1, M_ST_TA_1, and M_ST_TB_1
Bitstring of 32 bits: M_BO_NA_1, M_BO_TA_1, and M_BO_TB_1 (if defined for a specific project)
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:
Clock synchronization:
4 Clock synchronization (optional, see Clause 7.6)
Command transmission:
4 Direct command transmission
Direct setpoint command transmission
4 Select and execute command
Select and execute setpoint command
4 C_SE ACTTERM used
4 No additional definition
4 Short pulse duration (duration determined by a system parameter in the outstation)
4 Long pulse duration (duration determined by a system parameter in the outstation)
4 Persistent output
4 Supervision of maximum delay in command direction of commands and setpoint commands
Maximum allowable delay of commands and setpoint commands: 10 s
Transmission of integrated totals:
4 Mode A: Local freeze with spontaneous transmission
4 Mode B: Local freeze with counter interrogation
4 Mode C: Freeze and transmit by counter-interrogation commands
4 Mode D: Freeze by counter-interrogation command, frozen values reported simultaneously
4 Counter read
4 Counter freeze without reset
4 Global
4 Group 1 4 Group 5 4 Group 9 4 Group 13
4 Group 2 4 Group 6 4 Group 10 4 Group 14
4 Group 3 4 Group 7 4 Group 11 4 Group 15
4 Group 4 4 Group 8 4 Group 12 4 Group 16