PRS-7910
28 PRS-7910
Function type (FUN)
Information number (INF)
Messages sent to substation automation system are grouped according to IEC60870-5-103
protocol. Operating elements are sent by ASDU2 (time-tagged message with relative time), and
status of binary signal and alarm element are sent by ASDU1 (time-tagged message). The cause
of transmission (COT) of these responses is 1.
All spontaneous events can be gained by printing, implementing submenu “IEC103 Info” in the
menu “Print”.
9.3.5 General Interrogation
The GI can be used to read the status of the relay, the function numbers, and information numbers
that will be returned during the GI cycle. The GI cycle strictly abides by the rules defined in the
IEC60870-5-103.
Refer the IEC60870-5-103 standard can get the enough details about general interrogation.
9.3.6 General Service
The generic functions can be used to read the setting and protection measurement of the
protective device, and modify the setting. Two supported type identifications are ASDU 21 and
ASDU 10. For more details about generic functions, see the IEC60870-5-103 standard.
All general classification service group numbers can be gained by printing, implementing submenu
“IEC103 Info” in the menu “Print”.
9.3.7 Disturbance Records
This protective device can store up to 32 disturbance records in its memory. A pickup of the fault
detector or an operation of the relay can make the protective device store the disturbance records.
The disturbance records are stored in uncompressed format and can be extracted using the
standard mechanisms described in IEC60870-5-103.
All channel numbers (ACC) of disturbance data can be gained by printing, implementing submenu
“IEC103 Info” in the menu “Print”.
9.4 Messages Description for IEC61850 Protocol
9.4.1 Overview
The IEC 61850 standard is the result of years of work by electric utilities and vendors of electronic
equipment to produce standardized communications systems. IEC 61850 is a series of standards
describing client/server and peer-to-peer communications, substation design and configuration,
testing, environmental and project standards. The complete set includes:
IEC 61850-1: Introduction and overview
IEC 61850-2: Glossary
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