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FS-8700-47 DNP 3.0 Driver Manual Page 15 of 51
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4.4.9. Map Descriptor Example 6 – Read an unknown variation
If the DNP device does not document the object type variation that it serves, set the variation to zero. The remote device will respond with its
default variation. The problem is that the response cannot be stored using this Map Descriptor because the response will have its variation non-
zero. Thus you would need to make a Server Map Descriptor for each possible variation. A better strategy is to experiment. Use the single Map
Descriptor below, wait for the error and then modify the CSV based on information found in the error message.
// Client Side Map Descriptors
Map_Descriptors
Map_Descriptor_Name ,Data_Array_Name ,Data_Array_Offset ,Function ,Node_Name ,Address ,Length ,Scan_Interval ,dnpDataType ,dnpDataVari ,DnpQualifier
ReadAll_AI’s ,DA_AI ,0 ,Rdbc ,Node_A ,0 ,100 ,5.0s ,30 ,
0
,6
With the variation set to zero the remote device will respond
with its default variation.