![background image](http://html1.mh-extra.com/html/abb/relion-670-series/relion-670-series_applications-manual_3052129706.webp)
19.6
IEC 60870-5-103 communication protocol
IP14615-1 v2
19.6.1
Application
IP14864-1 v1
M17109-3 v6
TCP/IP
Control Center
IED
IED
IED
Gateway
Star coupler
Station HSI
IEC05000660-4-en.vsd
IEC05000660 V4 EN-US
Figure 421: Example of IEC 60870-5-103 communication structure for a substation
automation system
IEC 60870-5-103 communication protocol is mainly used when a protection IED communicates
with a third party control or monitoring system. This system must have software that can
interpret the IEC 60870-5-103 communication messages.
When communicating locally in the station using a Personal Computer (PC) or a Remote
Terminal Unit (RTU) connected to the Communication and processing module, the only
hardware needed is optical fibers and an opto/electrical converter for the PC/RTU, or a RS-485
connection depending on the used IED communication interface.
Functionality
M17109-38 v2
IEC 60870-5-103 is an unbalanced (master-slave) protocol for coded-bit serial communication
exchanging information with a control system. In IEC terminology a primary station is a master
and a secondary station is a slave. The communication is based on a point-to-point principle.
The master must have software that can interpret the IEC 60870-5-103 communication
messages. For detailed information about IEC 60870-5-103, refer to IEC60870 standard part 5:
Transmission protocols, and to the section 103, Companion standard for the informative
interface of protection equipment.
Design
M17109-41 v1
General
M17109-43 v2
The protocol implementation consists of the following functions:
•
Event handling
•
Report of analog service values (measurands)
•
Fault location
•
Command handling
Section 19
1MRK 505 343-UEN B
Station communication
700
Application manual
Summary of Contents for Relion 670 series
Page 1: ...RELION 670 SERIES Line differential protection RED670 Version 2 1 IEC Application manual...
Page 2: ......
Page 40: ...34...
Page 64: ...58...
Page 150: ...144...
Page 406: ...400...
Page 472: ...466...
Page 494: ...488...
Page 512: ...506...
Page 524: ...518...
Page 604: ...598...
Page 686: ...680...
Page 718: ...712...
Page 722: ...716...
Page 758: ...752...
Page 759: ...753...