MODBUS TCP server6.About this section6.1.This section provides reference information about the following issues:• IEC 61850 data modeling• Attributes• Status codesIEC 61850 data modeling6.2.General information about IEC 61850 data modeling6.2.1.The relationship between the IEC 61850 data modeling and Modbus OPC Server isdescribed in this section.For each data class, there is a table giving a detailed description about the relation betweenthe Modbus data and IEC 61850 data object attributes and services. The tables alsodescribe how the data is presented on the OPC Server name space.The columns in the tables have the following content types:• Name specifies the OPC item name of the attribute/service.• Type specifies the IEC 61850 type of the attribute.• Value/ Value range specifies the allowed values and ranges of the attribute/service.• Mandatory/Optional specifies whether the attribute is considered as mandatory oroptional according to the IEC 61850 standard.• OPC data types specify the OPC data type used for the OPC item.Data objects for status information6.2.2.Single point status (SPS)6.2.2.1.Table 6.2.2.1-1 Single point status (SPS) informationOPC data typesProtocol informa-tion elementMandatory/OptionalValue/ ValuerangeTypeNameVT_BOOL0x, 1x, 3x, 4xMTRUE | FALSEBOOLEANstValVT_I4generated by OPCServerMQualityqVT_DATEgenerated by OPCServerMTimeStampt115COM600 series 5.01MRS758690Master Protocols (Ethernet) and Applications Technical Refer-ence Manual
