IEC 60870-5-101 Requirement for RLDC
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IEC 60870-5-101 Interoperability profile for NRLDC, NERLDC , ERLDC (ALSTOM EMS/SCADA system) Page 9 of 10 Rev.1 2. ADDITIONAL INFORMATION ON IEC 60870-5-101 FOR NRLDC, NERLDC AND ERLDC A. Telemetred Data and ASDU mapping The following table explains the type of the telemetered data and corresponding ASDUs used to transmit this data as per IEC 60870-5-101 protocol. These are same for all the above three RLDCs. Type of Data Data Unit type as per IEC Description as per IEC Data polling method Interro gation group Transmitt ed after Class-X request Info Obj. Address range Analog inputs (P,Q, V, f) ASDU-11 Measured value scaled value As cyclic data on Class 2 polls Class 2 8848- ASDU-1 Single point information By exception (spontaneou s) and on periodic Group scan Group-1 Class 1 after exception, Class 1 after Group 1 scan 392- Digital inputs – Single status (Isolators, Protection signals) ASDU- 2 (for SOE) Single point information with time tag By exception (spontaneou s) and on periodic Group scan Group-1 Class 1 after exception, Class 1 after Group 1 scan Digital inputs – Double status (Circuit breakers) ASDU-4 Double point information with time tag By exception (spontaneou s) and on periodic Group scan Group-1 Class 1 after exception, Class 1 after Group 1 scan 256- Pulse accumulators ASDU-15 Integrated totals By periodic counter interrogatio n Group-1 (counter interrog ation) Class 2 12544- Analog Outputs (Setpoint) ASDU-48 Set point command Normalized value 37120 Digital Control command (CB ASDU 46 Double command 33024-
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Protocol Requirement for connection to Grid
Transcript of IEC 60870-5-101 Requirement for RLDC
IEC 60870-5-101 Interoperability profile for NRLDC, NERLDC , ERLDC (ALSTOM EMS/SCADA system)
Page 9 of 10 Rev.1
2. ADDITIONAL INFORMATION ON IEC 60870-5-101 FOR NRLDC, NERLDC AND ERLDC
A. Telemetred Data and ASDU mapping
The following table explains the type of the telemetered data and corresponding ASDUs used to transmit this data as per IEC 60870-5-101 protocol. These are same for all the above three RLDCs.
Type of Data Data Unit type as per IEC
Description as per IEC
Data polling method
Interrogation group
Transmitted after Class-X request
Info Obj. Addressrange
Analog inputs (P,Q, V, f)
ASDU-11 Measured value scaled value
As cyclic data on Class 2 polls
Class 2 8848-
ASDU-1 Single point information
By exception (spontaneous) and on periodic Group scan
Group-1 Class 1 after exception, Class 1 after Group 1 scan
392- Digital inputs –Single status (Isolators, Protection signals)
ASDU- 2 (for SOE)
Single point information with time tag
By exception (spontaneous) and on periodic Group scan
Group-1 Class 1 after exception, Class 1 after Group 1 scan
Digital inputs –Double status (Circuit breakers)
ASDU-4 Double point information with time tag
By exception (spontaneous) and on periodic Group scan
Group-1 Class 1 after exception, Class 1 after Group 1 scan
256-
Pulse accumulators ASDU-15 Integrated totals By periodic counter interrogation
Group-1 (counter interrogation)
Class 2 12544-
Analog Outputs (Setpoint)
ASDU-48 Set point command Normalized value
37120
Digital Control command (CB
ASDU 46 Double command 33024-
