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4.4.4 Map Descriptor example 1 - Monitoring a MXL/XLS Device for Events
To monitor a MXL/XLS device we need only one “poller” Map Descriptor as shown below. The function of this Map Descriptor’s is to continuously check the MXL device for events from panels. Only one poller Map Descriptor per FieldServer port is required when monitoring more than one MXL/XLS device. The Node_Name will indicate on which port this Map Descriptor resides.
// Client Side Map Descriptors |
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Map_Descriptors |
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Map_Descriptor_Name ,Data_Array_Name | ,Data_Array_Offset | ,Function | ,Node_Name | ,Block_Number | ,Length | ,Msg_Type | |
CD_Poller1 | ,Event_Counts1 | ,0 | ,RDBC | ,Panel1 | ,1 | ,19 | ,poller |
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| Choose a |
| Specify length |
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| Node_Name |
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| 19 events |
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Specifies Data Array | Specifies | from the |
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| according to |
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that will hold event | offset into | passive Map |
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Specifies lowest panel | Block Number |
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counters. Data Array | event | Descriptors in |
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number from which | used. | Specify poller | ||||
length must be equal | counters | the next section | ||||
events will be |
| message type | ||||
or greater than Data | Data Array | to specify the | Refer to | |||
received. Refer to | for this Map | |||||
Array offset plus Map | where event | port on which | ||||
Appendix A for more | Appendix A | Descriptor. | ||||
Descriptor length. | counts will be | this poller will | ||||
information. | for more |
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| stored. | be active. |
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CD – Client Descriptor
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 |