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5.3.2.Driver Specific Map Descriptor Parameters
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| A Node Name specified in | ||||
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| “Client | Node | Descriptor”. | ||
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| Special | Map |
| Descriptor’s | |
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| Node_Name |
| Name of Node to fetch data from |
| used by the DNP 3.0 Driver | |||||||||
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| are discussed | in | Error! | ||
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| Reference | source | not | ||
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| found.. |
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| Length of Map Descriptor. If a request length |
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| is too large the DNP 3.0 driver will produce a |
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| Length |
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| message and a panic. | The maximum length |
| 1 – 1000 |
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| is a function of the data object and data |
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| variation being processed. |
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| Address |
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| Starting address of data element to be read |
| 0, 1 , 2 etc |
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| The following parameters apply only to the DNP 3.0 Driver |
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| Corresponds to the Data Object Types defined | 1, 2, 10, 12, 30, 31, 32, 33, | |||||||||
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| DnpDataType |
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| in the DNP data object Library. Enter as | 40, 41, 20, 22, 23, 50,51, 52, | |||||||||
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| decimal number. Refer to Appendix A.9 | 60, 80 |
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| Corresponds to the Data Object Variant |
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| defined in the DNP data object Library. Enter |
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| as decimal number. |
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| When configured as a Server the driver can |
| 0,1,2,3 etc |
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| respond to requests for the so called ‘Default’ |
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| variation. These are polls where the variation |
| Legal values are determined | ||||||||
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| is zero. |
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| DnpDataVari |
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| by the value of dnpDataType. | |||||||
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| To configure the driver to be able to respond |
| Additional information is |
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| to requests for the default variation then you |
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| provided in Appendix A.9 | |||||||||
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| must create a MapDesc where the |
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| DNPDataVari=0. |
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| Note that the driver considers variation=1 as |
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| the default in most case. |
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| This parameter is ignored by the driver acting |
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| as a Server. The qualifier of the incoming poll |
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| is used to form the response. If the poll |
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| DnpQualifier* |
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| qualifier is not supported by the driver’s |
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| response function then the driver responds |
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| with Qualifier 1. The response function |
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| supports the following qualifiers; |
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| 0,1,6,7,8,17,28, |
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| Simply ensure that that there is a Server MD |
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| for each object requested. No special actions |
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| DnpMultiMsg |
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| are required to configure the Server to |
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| respond to requests for multiple object types. |
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| Refer to Appendix A.20 for more information. |
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5.3.3. | Timing Parameters |
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| Column Title |
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| Function |
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| Legal | ||||
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| Values | ||||||
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| Scada_Hold_Timeout |
| Time Server side waits before notifying Client that node is | >1.0s | ||||||||||
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| offline on FieldServer Client side. |
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FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: support@fieldserver.com