18.8 IEC 60870-5-103 communication protocol IP14615-1 v218.8.1 Introduction M11910-3 v3IEC 60870-5-103 communication protocol is mainly used when a protection IEDcommunicates with a third party control or monitoring system. This system musthave software that can interpret the IEC 60870-5-103 communication messages.18.8.2 Measurands for IEC 60870-5-103 I103MEAS18.8.2.1 Functionality GUID-557FB587-9127-4D99-B2C6-16445E06F220 v3103MEAS is a function block that reports all valid measuring types depending onconnected signals.The set of connected input will control which ASDUs (Application Service DataUnits) are generated.• 9 Will be generated if at least IL1 is connected. IL2, IL3, UL1, UL2, UL3, P,Q, F are optional but there can be no holes.• 3.4 Will be generated if IN and UN are present.• 3.3 Will be generated if IL2, Ul1L2, P and Q present.• 3.2 Will be generated if IL2, UL1L2 and P or Q missing.• 3.1 Will be generated if IL2 present and IL1 missing (otherwise IL2 in 9).Description for I103MEAS function block:9 = IL13.4 = IN AND UN3.3 = IL2 AND UL1L2 AND P AND Q3.2 = IL2 AND UL1L2 AND NOT 3.33.1 = IL2 AND NOT (3.2 OR 3.3 OR 9)18.8.2.2 IdentificationGUID-3E1AB624-1B68-4018-B1BA-BC2C811F8F74 v1Function description Function blocknameIEC 60617identificationANSI/IEEE C37.2device numberMeasurands for IEC 60870-5-103 I103MEAS - -Section 18 1MRK 505 394-UEN AStation communication706 Line differential protection RED650 2.2 IECTechnical manual
