User Guide

FS-8700-21 LonWorks Manual Page 19 of 62
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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
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
Explicitly Addressed Client Map Descriptors use
this field to point to their relevant Server Map
Descriptors.
For Non-Throttled
Client Map
Descriptors the
Scan_Interval
determines the
update rate.
This field
determines the
Map
Descriptor’s
function. See
Section 6.1.2
for more
information.
UNVT Byte length must be specified for correct
operation.