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Section 6: Other Features
6.1
Data Communications
Two communication ports, COM1 and COM2 are provided. RS485 connections are available on the terminal
blocks at the rear of the relay (COM1). A USB port, COM 2, is provided at the front of the relay for local access
using a PC.
Optionally, additional communication ports are available: -
2 x fibre optic with ST connectors (COM3 and COM4) and 1x IRIG-B
1 x RS485 (COM3) and 1x IRIG-B
1 x RS232 (COM3) and 1 x IRIG-B
2 x rear electrical Ethernet RJ45 (EN100 module)
2 x rear optical Ethernet Duplex LC (EN100 module)
Communication is compatible with Modbus-RTU, IEC60870-5-103 FT 1.2 and DNP3.0 transmission and
application standards.
Communication with the relay from a personal computer (PC) is facilitated by the REYDISP software packages.
The program allows the transfer of relay settings, waveform records, event records, fault data records,
Instruments/meters and control functions. REYDISP is compatible with IEC60870-5-103.
Data communications operation is described in detail in Chapter 4 of this manual.
6.2
IEC 61850 Communications
The relay can optionally be provided with IEC61850 comms.
For further details refer to the following publications:
Model Implementation Conformance Statement (MICS)
Protocol Implementation Conformance Statement (PICS)
Protocol Implementation Extra Information for Testing (PIXIT)
6.3
Maintenance
6.3.1 Output Matrix Test
The feature is available from the Relay fascia and allows the user to operate binary outputs or LEDs assigned to
relay functions.
Any protection function which is enabled in the setting menu will appear in the Output Matrix Test.
©2013 Siemens Protection Devices Limited
Chapter 1) 7SR23 DAD Description Of Operation
Chapter 1 Page 30 of 36
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