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5.3.3.Server Map Descriptor Example.
This Map Descriptor defines a capability of the FieldServer to respond to a poll for an immediate Pressure Print (Command Code = ‘P’). When the poll is received, the driver inspects 5 consecutive array elements starting at offset 0 in the Data Array named DA_PRESSURE. The contents of the 5 elements are defined in Appendix A.1.1. The 2nd element is the units index, the 3rd is the pressure indicating letter. Both of these elements must be set to
Map_Descriptor_Name, | Data_Array_Name, | Data_Array_Offset, | Function, | Node_name | Gage_Functon | Length |
SRV_Pressure, | DA_PRESSURE | 0, | Server | Gage1 | Pressure, | 5 |
Data for the response to a ‘P’ poll is extracted from this Data Array.
This function defines | The | Node | Name | |||
a capability of | the | must be the same | ||||
FieldServer |
| to | as | one | of | the |
respond | to | an | nodes defined | in | ||
incoming poll. |
| the ‘nodes’ section | ||||
|
|
| of the CSV file. |
| ||
The Map Descriptor is passive. It does
not generate messages but is used to respond.
Defines the capability of this Map Descriptor. This Map Descriptor can only be used to form responses to a ‘P’ poll.
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