CYG PRS-7367 - DNP3.0 Protocol

Communication Protocol
322 PRS-7367
9.5 DNP3.0 Protocol
9.5.1 Overview
The descriptions given here are intended to accompany this relay. The DNP3.0 protocol is not
described here; please refer to the DNP3.0 protocol standard for the details about the DNP3.0
implementation. This manual only specifies which objects, variations and qualifiers are supported
in this relay, and also specifies what data is available from this relay via DNP3.0.
The DNP3.0 communication uses the Ethernet ports (electrical or optical) at the rear side of this
relay.
9.5.2 Link Layer Functions
Please see the DNP3.0 protocol standard for the details about the linker layer functions.
9.5.3 Transport Functions
Please see the DNP3.0 protocol standard for the details about the transport functions.
9.5.4 Application Layer Functions
9.5.4.1 Function Code
Table 9.5-1 Function Code
Function Code
Function
0 (0x00)
Confirm
1 (0x01)
Read
2 (0x02)
Write
3 (0x03)
Select
4 (0x04)
Operate
5 (0x05)
Direct Operate
6 (0x06)
Direct Operate No Acknowledgment
13 (0x0D)
Cold Restart
14 (0x0E)
Warm Restart
20 (0x14)
Enable Unsolicited Responses
21 (0x15)
Disable Unsolicited Responses
22 (0x16)
Assign Class
23 (0x17)
Delay Measurement
9.5.4.2 Communication Table Configuration
This relay now supports 3 Ethernet clients and 2 serial port clients. Each client can be set the DNP
related communication parameters respectively and be selected the user-defined communication
table.
The user can configure the user-defined communication table through the PRS IED Studio
configuration tool auxiliary software. The object groups “Binary Input”, “Binary Output”, “Analog