Dnp 3.0 Remote Communication Protocol; 1.Protocol Overview; 2.Protocol Parameters Of Ref 610; 3.Dnp 3.0 Point List Of Ref 610 - ABB REF 610 Technical Reference Manual

1MRS 755535
4.1.16.
4.1.16.1.
4.1.16.2.
4.1.16.3.
Feeder Protection Relay
Technical Reference Manual - ANSI Version
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 4.1.15.2-8 Real-time clock structure
Address Description
721 Year
722 Month
723 Day
724 Hour
725 Minute
726 Second
727 Hundredth of a
second

DNP 3.0 remote communication protocol

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 Data Link is to be used with a
transport pseudo-layer. As a minimum, the transport pseudo-layer implements
message assembly and disassembly services.
Protocol parameters of REF 610
The DNP parameters can all be adjusted using the Relay Setting Tool. For the DNP
parameters, refer to table 4.1.17-14.
Storing DNP 3.0 parameters
All DNP parameters are stored on the external DNP 3.0 module. After
parameterization with the Relay Setting Tool, REF 610 must be switched to the rear
communication mode for at least 10 seconds in order for the DNP parameters to be
replicated and stored onto the DNP module. However, this is necessary only if the
DNP parameters have been altered.
DNP 3.0 point list of REF 610
The DNP data points (binary, analogue and counters) of REF 610, presented in
tables 4.1.16.3-1... 4.1.16.3-3 below, are all in use as default.
Range
0...99
1...12
1...31
0...23
0...59
0...59
0...99
REF 610
89