Schweitzer Engineering Laboratories SEL-751 - Page 770

E.56
SEL-751 Relay Instruction Manual Date Code 20170927
Modbus RTU Communications
Communications Protocol
MAX/MIN RST Data
1654 (R) MX/MN RST TIM-ss 0 5999 0 0.01 1754
1655 (R) MX/MN RST TIM-mm 0 59 0 1 1755
1656 (R) MX/MN RST TIM-hh 0 23 0 1 1756
1657 (R) MX/MN RST DAT-dd 1 31 1 1 1757
1658 (R) MX/MN RST DAT-mm 1 12 1 1 1758
1659 (R) MX/MN RST DAT-yy 2000 9999 2000 1 1759
RTD DATA2
1660 (R) THERMAL LEVEL 1 0 10000 0 0.01 1760
1661 (R) THERMAL LEVEL 2 0 10000 0 0.01 1761
1662 (R) THERMAL LEVEL 3 0 10000 0 0.01 1762
1663 (R) EQUIV CURRENT 1 0 10000 0 0.01 1763
1664 (R) EQUIV CURRENT 2 0 10000 0 0.01 1764
1665 (R) EQUIV CURRENT 3 0 10000 0 0.01 1765
1666 (R) THERL CAP USE 1 % 0 10000 0 0.1 1766
1667 (R) THERL CAP USE 2 % 0 10000 0 0.1 1767
1668 (R) THERL CAP USE 3 % 0 10000 0 0.1 1768
1669 (R) TIME TO TRIP 1 s 0 9999 0 1 1769
1670 (R) TIME TO TRIP 2 s 0 9999 0 1 1770
1671 (R) TIME TO TRIP 3 s 0 9999 0 1 1771
1672 (R) RELEASE TIME 1 s 0 9999 0 1 1772
1673 (R) RELEASE TIME 2 s 0 9999 0 1 1773
1674 (R) RELEASE TIME 3 s 0 9999 0 1 1774
1675–1679 (R) Reserved
c
1775–1779
Reserved Area 5
1680–1689 (R) Reserved
c
1760–1789
Fault Location
NOTE: All Fault Location and Historical Data is updated whenever the event number from the History response (See Section 10:
Analyzing Events) is written into the Event Log Select register (Register 1692).
1690 (R) FAULT LOCATION -32768 32767 0 0.1 1790
Historical Data
1691 (R) NO. EVENT LOGS 0 100 0 1 1791
1692 (R/W) EVENT LOG SEL. 0 100 0 0 1792
1693 (R) EVENT TIME ss 0 5999 0 0.01 1793
1694 (R) EVENT TIME mm 0 59 0 1 1794
1695 (R) EVENT TIME hh 0 23 0 1 1795
1696 (R) EVENT DAY dd 0 31 1 1 1796
1697 (R) EVENT DAY mm 0 12 1 1 1797
1698 (R) EVENT DAY yy 0 9999 2000 1 1798
Table E.34 Modbus Register Map
a
(Sheet 32 of 38)
Modbus Register
Address
b
Name/Enums Units Min Max Default
Scale
Fac to r
DeviceNet
Parameter
Numbers