FieldServer FS-8700-21 instruction manual Map Descriptor Example 2 Polling UNVT’s

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FS-8700-21 LonWorks Manual	Page 19 of 62

6.2.5 Map Descriptor Example 1 - Explicit Configuration using Network Management Polls

The Map Descriptor pollTemp_p shows the use of SNVT_Units for Scaling when polling temperature

The Map Descriptor pollSwitch shows the use of SNVT_Option for Selective data scanning. This only brings in the “State” portion of SNVT_Switch

Map_Descriptors
Map_Descriptor_Name	,Data_Array_Name	,Data_Array_Offset	,Lon_Function	,Function	,Node_Name	,SNVT_Index	,SNVT_Type	,SNVT_Units	,SNVT_Option	,Scan_Interval
pollTemp_p	,DA_Explicit	,1	,NMFETCHC	,Rdbc	,Remote_Node	,0	,SNVT_temp_p	,Deg_F	,-	,1.0s
pollSwitch	,DA_Explicit	,2	,NMFETCHC	,Rdbc	,Remote_Node	,1	,SNVT_switch	,-	,State	,1.0s

This field
determines the
Map	Explicitly Addressed Client Map Descriptors use	For Non-Throttled
Descriptor’s	this field to point to their relevant Server Map	Client Map
function. See	Descriptors.	Descriptors the
Section 6.1.2		Scan_Interval
for more		determines the
information.		update rate.

6.2.6 Map Descriptor Example 2 – Polling UNVT’s

Map_Descriptors
Map_Descriptor_Name	,Data_Array_Name	,Data_Array_Offset	,Lon_Function	,Function	,Node_Name	,SNVT_Index	,SNVT_Type	,UNVT_Byte_Length	,Scan_Interval
pollUNVT	,DA_Explicit	,101	,NMFETCHC	,Rdbc	,Remote_Node	,2	,UNVT	,31	,1.0s

UNVT Byte length must be specified for correct operation.

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Contents Driver Manual FS-8700-21 LonWorks Table of Contents Appendix D. SNVTType Network Management NV Updates/PollsLonWorks Program ID Calculation Spid XIF Files Configuration PropertiesClients/Servers Explicit/ImplicitProvided by the Supplier of 3 rd Party Equipment Supplied by FieldServer Technologies for this driverAdditional files required for the Driver Hardware Connections Service PinLonWorks Adapter Card FS-X40 only Port Address SwitchNeuron ID Lon LED’sSNVTIndex Special considerationsMap Descriptor Names Network Variable Names Implicit Lon functionsClient vs Server Mapping Network Management CapabilityClient Side Mapping Connection Parameters FieldServer Related Map Descriptor Parameters Node ParametersTiming Parameters Driver Related Map Descriptor ParametersClient Side Map Descriptor Example Lon functions Explicit ConfigurationsDomain Table Setup Network Management Nodes Client Side Configuration ConnectionsFS-8700-21 LonWorks ManualPage 18 Map Descriptor Example 2 Polling UNVT’s Using Neuron ID to Address Devices Client Drivers only Server Side Configuration Connections FS-8700-21 LonWorks ManualPage 22 Map Descriptor Example Appendix A.4. XIF Generation Appendix A.1. Using UNVT’sAppendix A.2. Using NVMin, NVMax etc Appendix A.3. Throttling ModeAppendix A.6. LonMark Object Creation Appendix A.5. Configuration PropertiesCfgnvui Appendix A.8. Working with Binary Data Appendix A.7. Node Status OperationAppendix A.9. Filtering Snvt Variables FS-8700-21 LonWorks Manual Appendix B.1. Echelon LonMaker Appendix B. Vendor InformationAppendix B.3. Honeywell Care Appendix B.2. Neuron SystemsAppendix B.4. Tridium Jace Appendix B.5. Trane Rover Appendix C.1. Debugging a LonWorks connection Hints and tips Appendix C.2. Error MessagesUINT32 Appendix C.3. Exposing Operation StatisticsAppendix C.5. CirconSI Limitations Appendix C.4. Illegal Characters in Network Variable NamesAppendix C.7. Combining Explicit and Implicit Appendix D. SNVTType Location array element Kilo-British Thermal 65,535 Units Mega-British Thermal Sender Range Lower ID Data Length Suggested Data Array Formats KiloJoules per Kilogram FS-8700-21 LonWorks Manual Data Length Suggested Data Array Formats Float Measurement Units Values Range Invalid Value 163.840 Type Raw SNVTmassf FS-8700-21 LonWorks Manual Data Item Measurement Units Values Range Invalid Value Parts per Million ppm FS-8700-21 LonWorks Manual Measurement Units Values Range Invalid Value SNVTpumpsensor SNVTpumpsetmn Measurement Units Values Range Invalid Value SNVTpumpsetmn SNVTpwrfactf RPM Millimeters per Second Difference Type Measurement Units Values Range Invalid Value SNVTtempsetpt FS-8700-21 LonWorks Manual Kiloliters kl Measurement Units Values Range Invalid Value SNVTzerospan