Schweitzer Engineering Laboratories SEL-751 - Page 753

E.39
Date Code 20170927 Instruction Manual SEL-751 Relay
Modbus RTU Communications
Communications Protocol
883 (R/W) RA122 (1:LW) -32768 32767 0 0.01 983
884 (R/W) RA123 (0:UW) -32768 32767 0 0.01 984
885 (R/W) RA123 (1:LW) -32768 32767 0 0.01 985
886 (R/W) RA124 (0:UW) -32768 32767 0 0.01 986
887 (R/W) RA124 (1:LW) -32768 32767 0 0.01 987
888 (R/W) RA125 (0:UW) -32768 32767 0 0.01 988
889 (R/W) RA125 (1:LW) -32768 32767 0 0.01 989
890 (R/W) RA126 (0:UW) -32768 32767 0 0.01 990
891 (R/W) RA126 (1:LW) -32768 32767 0 0.01 991
892 (R/W) RA127 (0:UW) -32768 32767 0 0.01 992
893 (R/W) RA127 (1:LW) -32768 32767 0 0.01 993
894 (R/W) RA128 (0:UW) -32768 32767 0 0.01 994
895 (R/W) RA128 (1:LW) -32768 32767 0 0.01 995
896–899 (R) Reserved
c
996–999
MAX/MIN Motor Data
NOTE: Although Registers 970–1011 labels show phase-to-phase voltages, they represent phase-to-phase voltages when
DELTA_Y is set to DELTA and they represent phase voltages when DELTA_Y is set to WYE.
900 (R) IA MAX A 0 65535 0 1 1000
901 (R) IA MAX TIME ss 0 5999 0 0.01 1001
902 (R) IA MAX TIME mm 0 59 0 1 1002
903 (R) IA MAX TIME hh 0 23 0 1 1003
904 (R) IA MAX DAY dd 1 31 1 1 1004
905 (R) IA MAX DAY mm 1 12 1 1 1005
906 (R) IA MAX DAY yy 2000 9999 2000 1 1006
907 (R) IA MIN A 0 65535 0 1 1007
908 (R) IA MIN TIME ss 0 5999 0 0.01 1008
909 (R) IA MIN TIME mm 0 59 0 1 1009
910 (R) IA MIN TIME hh 0 23 0 1 1010
911 (R) IA MIN DAY dd 1 31 1 1 1011
912 (R) IA MIN DAY mm 1 12 1 1 1012
913 (R) IA MIN DAY yy 2000 9999 2000 1 1013
914 (R) IB MAX A 0 65535 0 1 1014
915 (R) IB MAX TIME ss 0 5999 0 0.01 1015
916 (R) IB MAX TIME mm 0 59 0 1 1016
917 (R) IB MAX TIME hh 0 23 0 1 1017
918 (R) IB MAX DAY dd 1 31 1 1 1018
919 (R) IB MAX DAY mm 1 12 1 1 1019
920 (R) IB MAX DAY yy 2000 9999 2000 1 1020
921 (R) IB MIN A 0 65535 0 1 1021
922 (R) IB MIN TIME ss 0 5999 0 0.01 1022
923 (R) IB MIN TIME mm 0 59 0 1 1023
924 (R) IB MIN TIME hh 0 23 0 1 1024
925 (R) IB MIN DAY dd 1 31 1 1 1025
926 (R) IB MIN DAY mm 1 12 1 1 1026
927 (R) IB MIN DAY yy 2000 9999 2000 1 1027
Table E.34 Modbus Register Map
a
(Sheet 15 of 38)
Modbus Register
Address
b
Name/Enums Units Min Max Default
Scale
Fac to r
DeviceNet
Parameter
Numbers