FieldServer FS-8700-47 instruction manual Responses to Polls for Object 80 Internal Indications

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FS-8700-47 DNP 3.0 Driver Manual	Page 31 of 51

A.7.4. Responses to Polls for Object 80 (Internal Indications)

If a remote client polls for object 80 then the FieldServer needs to be configured with an object 80 Server Map Descriptor.

The length of the Map Descriptor determines the number of bits in the response and hence the number of bytes. A whole number of bytes is always sent so if configured with a length that isn’t a multiple of 8 then the driver appends extra zero-state bits to form a whole number of bytes.

Example: This map descriptor responds with 2 bytes of data. 10 bits of the two bytes are extracted from the DA_80 and 6 of them are padded with a state of zero to make a whole number of bits. The driver extracts the bits from consecutive elements of the Data Array. Thus with a length of 10, the driver looks in 10 consecutive elements of the Data Array.

Map_Descriptors
Map_Descriptor_Name	,Scan_Interval	,Data_Array_Name	,Data_Array_Offset	,Function	,Node_Name	,Address	,Length	,dnpSubType	,dnpDataType	,dnpDataVari	,dnpQualifier
MMBa1	,0.5s	,DA_80	,0	,Server	,Node_A	,0	,10	,value	,80	,1	,Zero

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Contents Driver Manual FS-8700-47 DNP Table of Contents FS-8700-47 DNP 3.0 Driver Manual Table of Contents DNP 3.0 Driver Description Page FS-8700-47 DNP 3.0 Driver Manual Connection Notes Hardware ConnectionsData Arrays Configuring the FieldServer as a DNP 3.0 Driver ClientClient Side Node Descriptors Client Side Connection DescriptorsDriver Specific Map Descriptor Parameters Timing Parameters Map Descriptor Example 1 Simple Read Map Descriptor Example 3 Simple Read Extract Value & Status Map Descriptor Example 4 Reading Class Data Map Descriptor Example 6 Read an unknown variation Server Side Connection Descriptors Configuring the FieldServer as a DNP 3.0 Driver ServerServer Side Node Descriptors Driver Specific Map Descriptor Parameters Map Descriptor Example 2 Class Data Map Descriptor Example 1 Discrete DataRTU Map Descriptor Example 3 Class Data another exampleMap Descriptor Example 4 Default Variation Variation zero Map Descriptor Example 5 ClassDataServingCtrl AnaInputs Map Descriptor Example 6 Unsolicited Messages Server Side Limitations Appendix A.4. Channel Idle, Master & Slave Idle Appendix A. Advanced Topics Appendix A.1. DNP 3.0 ProtocolAppendix A.2. DNP Driver Functionality Appendix A.3. DNP Objects mapped to FieldServer Data ArraysAppendix A.6. App Layer Functionality in the Master Appendix A.5. DLL Layer Functionality in the MasterIncoming Internal Indications Bytes Appendix A.7. Internal Indications, Object 80 and DnpiiPage ServerIIArray Internal Indications reported in ResponsesResponses to Polls for Object 80 Internal Indications Dnpstats Appendix A.8. DNPStatsAppendix A.9. DNP 3.0 Data Objects Counter Change Event All Variations See notes in Appendix A.10 for function code FS-8700-47 DNP 3.0 Driver Manual Appendix A.12. FieldServer DNP Node Number Appendix A.11. Controlling the DNP 3.0 Driver’s QualifierAppendix A.13. DnpSubType Appendix A.15. Link ResetAppendix A.14. Communication Stats Appendix A.17. dnpIndexStyle Appendix A.16. Controlling DA OffsetsDatime Appendix A.18. Real Time Clock SynchronizationPage Appendix A.19. Select and Operate Page Page Appendix A.20. Multiple requests in a single poll Appendix B. Driver Error Messages Page Page Page FYI