R.4.24
SEL-421 Relay Reference Manual Date Code 20111215
Communications Interfaces
Communications Card
The STATUS region contains complete relay status information. This region is
updated every 5 seconds. See Tab le 4.25 for the Map.
5014 CURC1 float Breaker 1 phase C accumulated current (kA)
5016 CURA2 float Breaker 2 phase A accumulated current (kA)
5018 CURB2 float Breaker 2 phase B accumulated current (kA)
501A CURC2 float Breaker 2 phase C accumulated current (kA)
501C NOPA1 long int Breaker 1 phase A number of operations
501E NOPB1 long int Breaker 1 phase B number of operations
5020 NOPC1 long int Breaker 1 phase C number of operations
5022 NOPA2 long int Breaker 2 phase A number of operations
5024 NOPB2 long int Breaker 2 phase B number of operations
5026 NOPC2 long int Breaker 2 phase C number of operations
Table 4.25 SEL-421 Communications Card Database Structure—STATUS Region
(Sheet 1 of 2)
Address
(Hex)
Name Type Description
6000 _YEAR int 4-digit year when data was sampled
6001 DAY_OF_YEAR int 1–366 day when data was sampled
6002 TIME(ms) long int Time of day in msec when data was sampled
(0–86,400,000)
6004 CH1(mV) int Channel 1 offset
6005 CH2(mV) int Channel 2 offset
6006 CH3(mV) int Channel 3 offset
6007 CH4(mV) int Channel 4 offset
6008 CH5(mV) int Channel 5 offset
6009 CH6(mV) int Channel 6 offset
600A CH7(mV) int Channel 7 offset
600B CH8(mV) int Channel 8 offset
600C CH9(mV) int Channel 9 offset
600D CH10(mV) int Channel 10 offset
600E CH11(mV) int Channel 11 offset
600F CH12(mV) int Channel 12 offset
6010 MOF(mV) int Master offset
6011 OFF_WARN char[8] Offset warning string
6019 OFF_FAIL char[8] Offset failure string
6021 PS3(V) float 3.3 Volt power supply voltage
6023 PS5(V) float 5 Volt power supply voltage
6025 PS_N5(V) float -5 Volt regulated voltage
6027 PS15(V) float 15 Volt power supply voltage
6029 PS_N15(V) float -15 Volt power supply voltage
Table 4.24 SEL-421 Communications Card Database Structure—BREAKER
Region (Sheet 2 of 2)
Address
(Hex)
Name Type Description
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