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4.4.Client Side Map Descriptors
4.4.1.FieldServer Specific Map Descriptor Parameters
Column Title | Function | Legal Values | |
Map_Descriptor_Name | Name of this Map Descriptor | Up to 32 alphanumeric | |
characters | |||
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| Name of Data Array where | One of the Data Array names | |
Data_Array_Name | data is to be stored in the | from “Data Array” section | |
| FieldServer | above | |
Data_Array_Offset | Starting location in Data Array | 0 to maximum specified in | |
“Data Array” section above | |||
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Function | Function of Client Map | Rdbc, Wrbc, Wrbx | |
Descriptor | |||
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4.4.2.Driver Specific Map Descriptor Parameters
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| The following parameters are used by a number of drivers. |
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| A Node Name specified in | ||||||||
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| Node_Name | Name of Node to fetch data from |
| Special Map Descriptors are | |||||||||
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| Reference | source | not | ||||||
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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 |
| 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. |
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Address |
| 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, | |||||||||
| DnpDataType |
| in the DNP data object Library. Additional | 40, 41, 20, 22, 23, 50, 51, 52, | |||||||||
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| information is provided in Appendix A.9 |
| 60, 80 - decimal numbers |
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| Corresponds to the Data Object Variant |
| 0, 1,2,3 etc |
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| DnpDataVari |
| defined in the DNP data object Library. Enter |
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| by the value of dnpDataType. | ||||||||
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| provided in Appendix A.9 |
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| Used to tell driver which Suffield of the object |
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| DnpSubType* |
| to map to/from the FieldServer Data Array. |
| Value, | flags, | time1, | time2, | |||||
| Additional information is provided in Appendix |
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| DnpFlagBit* | Not Used. |
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| Zero, | 1, | 6, |
| 7, | 8, |
| 17h | - |
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| This parameter is only required if you need to |
| qualifier | 17h | specify the | ||||||
| DnpQualifier* |
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| 3.0 driver. Refer to Appendix A.11 |
| the Map | Descriptor. | For | ||||||
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| Qualifier zero use the string | ||||||||
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| “zero” |
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| This parameter is only required if you need to |
| Legal | DNP | function | codes. | |||||
| DnpFunction* |
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| 3.0 driver. Refer to Appendix A.10 |
| code | required | on vendor’s | ||||||
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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
