Siemens 7SR23 DAD, Manual, Page: 81 / 226

Chapter 4) 7SR23 DAD Data Communications
©2013 Siemens Protection Devices Limited Chapter 4 Page 3 of 54
Contents
Document Release History.................................................................................................................................1
Section 1: Introduction .......................................................................................................................................4
Section 2: Physical Connection ..........................................................................................................................5
2.1 Communication ports .........................................................................................................................6
2.1.1 USB Interface (COM2) .........................................................................................................6
2.1.2 RS485 Interface (COM1) ......................................................................................................7
2.1.3 Optional Rear Fibre Optic Interfaces (COM3 and COM4).......................................................8
2.1.4 Optional Rear RS485 (COM3) ............................................................................................12
2.1.5 Optional Rear RS232 (COM3) ............................................................................................12
2.1.6 Optional Rear EN100 Ethernet Module (COM3) ..................................................................13
Section 3: IEC 60870-5-103 Definitions ............................................................................................................14
3.1 Introduction .....................................................................................................................................14
Section 4: Modbus Definitions ..........................................................................................................................23
4.1 Introduction .....................................................................................................................................23
Section 5: DNP3.0 Definitions ..........................................................................................................................31
5.1 Device Profile ..................................................................................................................................31
5.2 Implementation Table ......................................................................................................................34
5.3 Point List .........................................................................................................................................39
Section 6: IEC61850 Protocol Support..............................................................................................................52
Section 7: Modems ..........................................................................................................................................53
7.1.1 Connecting a Modem to the Relay(s) ..................................................................................53
7.1.2 Setting the Remote Modem ................................................................................................53
7.1.3 Connecting to the Remote Modem......................................................................................53
Section 8: Glossary.......................................................................................................................................... 54
List of Figures
Figure 2-1
Communication to Front USB Port ................................................................................................6
Figure 2-2 Communication to Multiple Devices using RS485 (Standard Port)..................................................7
Figure 2-3 Communication to Multiple Devices using Fibre-optic Ring Network .............................................11
Figure 2-4 Communication to Multiple Devices from Control System and Laptop using Fibre-
optic Star Network ......................................................................................................................11
Figure 2-5 Additional (Optional) Rear RS485 + IRIG-B Connection to a PC ..................................................12
Figure 2-6 Additional (Optional) Rear RS232 + IRIG-B Connection to a PC ..................................................12
Figure 2-7 RS232 Data Comms Pin Connections.........................................................................................12
Figure 2-8 EN100 Ethernet Module .............................................................................................................13