ABB REU 610, Техническое справочное руководство

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Table footnotes from previous page
a)
Readable and writeable register.
Table 5.1.15.2.-16Modbus DI-point event
Address Name Range Comment
678 0 Modbus DI-point 1...99 MSB = 0
679 Modbus DI value 0...1
Table 5.1.15.2.-17Informative event
Address Name Range Comment
678 1 SPA channel 0...3 MSB = 1
679 SPA event 0...63
Structure 4
The relay's real-time clock is stored in this structure. It can be updated by
presetting the whole register structure in one Modbus transaction.
Table 5.1.15.2.-18Real-time clock structure
Address Description Range
721 Year 0...99
722 Month 1...12
723 Day 1...31
724 Hour 0...23
725 Minute 0...59
726 Second 0...59
727 Hundredth of a second 0...99
5.1.16. DNP 3.0 remote communication protocol
5.1.16.1. Protocol overview
The DNP 3.0 protocol was developed by Harris Control based on the early
versions of the IEC 60870-5 standard telecontrol protocol specifications.
Today, the DNP protocol specifications are controlled by the DNP Users
Group.
The DNP protocol supports the ISO OSI (Open System Interconnection)
based model, which only specifies physical, data link and application layers.
This reduced protocol stack is referred to as Enhanced Performance
Architecture (EPA). To support advanced RTU functions and messages larger
than the maximum frame length as defined in the IEC 60870-1, the DNP 3.0
1MRS755972
Voltage Relay
Technical Reference Manual - ANSI Version
REU 610