Schweitzer Engineering Laboratories SEL-751 - Page 775

E.61
Date Code 20170927 Instruction Manual SEL-751 Relay
Modbus RTU Communications
Communications Protocol
3017H (R) MAX/MIN RTD DATA 1090 1269 1090
3018H (R) MAX/MIN AI3 DATA 1270 1397 1270
3019H (R) MAX/MIN AI4 DATA 1398 1525 1398
301AH (R) MAX/MIN AI5 DATA 1526 1653 1526
301BH (R) MAX/MIN RST DATA 1654 1659 1654
301CH (R) RTD DATA2 1660 1679 1660
301DH (R) RESERVED AREA5 1680 1689 1680
301EH (R) FAULT LOCATION 1690 1690 1690
301FH (R) HISTORICAL DATA 1691 1729 1691
3020H (R) TRIP/WARN DATA 1730 1739 1730
3021H (R) COMM COUNTERS 1740 1759 1740
3022H (R) RELAY ELEMENTS 1760 1935 1760
Product Information
4000H (R) VENDOR CODE 0 65535 865 na
865 = SEL
4001H (R) PRODUCT CODE 0 65535 107 na
4002H (R/W) ASA NUMBER LOW 0 65535 na
4003H (R/W) ASA NUMBER HIGH 0 65535 na
4004H (R) FIRMWARE REVISION 1 32639 na
4005H (R) NUM OF PAR 1 2100 1935 na
4006H (R) NUM OF PAR GROUP 1 100 34 na
4007H (R/W) MAC ID 1 99 0 na
64–99 = Swr Configurable
4008H (R/W) DN BAUD RATE 0 9 0 na
0 = 125 kbps
1 = 250 kbps
2 = 500 kbps
3 = AUTO
4–9 = Swr Configurable
4009H (R/W) DN STATUS 0 31 0 na
Bit 0 = Explicit Cnxn
Bit 1 = I/O Cnxn
Bit 2 = Explicit Fault
Bit 3 = I/O Fault
Bit 4 = I/O Idle
Bit 5–Bit 15 = Reserved
400AH not used
400BH (R) CONFIG PAR CKSUM 0 na
400CH (R) LANGUAGE CODE 0 na
0 = English
1 = French
2 = Spanish (Mexican)
3 = Italian
4 = German
5 = Japanese
6 = Portuguese
7 = Mandarin Chinese
8 = Russian
9 = Dutch
Table E.34 Modbus Register Map
a
(Sheet 37 of 38)
Modbus Register
Address
b
Name/Enums Units Min Max Default
Scale
Fac to r
DeviceNet
Parameter
Numbers