183
Serial communication
Chapter 12
Data communication
•
Report of analog service values (measurements)
•
Fault location
•
Command handling
-
Autorecloser ON/OFF
-
Teleprotection ON/OFF
-
Protection ON/OFF
-
LED reset
-
Characteristics 1 - 4 (Setting groups)
•
File transfer (disturbance files)
•
Time synchronization
The events created in the terminal available for the IEC protocol are based on the event function
blocks EV01 - EV06 and disturbance function blocks DRP1 - DRP3. The commands are repre-
sented in a dedicated function block ICOM. This block has output signals according to the IEC
protocol for all commands.
1.3
Setting parameters
Path in local HMI: Configuration/TerminalCom/SPA-IEC-LON
Table 177: Setting parameter for selection of communication protocols for rear ports
1.4
Serial communication, SPA
1.4.1
Application
This communication bus is mainly used for SMS. It can include different numerical relays/ter-
minals with remote communication possibilities. Connection to a personal computer (PC) can
be made directly (if the PC is located in the substation) or by telephone modem through a tele-
phone network with ITU (former CCITT) characteristics.
1.4.2
Design
When communicating with a PC, using the rear SPA port, the only hardware needed for a station
monitoring system is:
•
Optical fibres
•
Opto/electrical converter for the PC
•
PC
or
•
An RS485 network installation according to EIA
•
PC
Parameter
Range
Default
Unit
Description
Port
SPA-LON,
IEC-LON,
SPA-IEC
SPA-LON
-
Communication protocol alternatives for
the rear communication ports
Summary of Contents for REL 501-C1 2.5
Page 1: ...Technical reference manual Line distance protection terminal REL 501 C1 2 5 ...
Page 2: ......
Page 26: ...14 Introduction to the technical reference manual Chapter 1 Introduction ...
Page 42: ...30 Technical data Chapter 2 General ...
Page 66: ...54 Blocking of signals during test BST Chapter 3 Common functions ...
Page 142: ...130 Time delayed overvoltage protection TOV Chapter 6 Voltage ...
Page 162: ...150 Autorecloser AR Chapter 9 Control ...
Page 174: ...162 Event function EV Chapter 10 Logic ...
Page 210: ...198 Serial communication Chapter 12 Data communication ...
Page 226: ...214 Serial communication modules SCM Chapter 13 Hardware modules ...
Page 230: ...218 Terminal diagrams Chapter 14 Diagrams Figure 87 REL 501 C1 with DC switch ...
Page 234: ...222 Terminal diagrams Chapter 14 Diagrams ...
Page 237: ......