
FS-8700-21 LonWorks Manual Page 13 of 72
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: [email protected] 6.2.3.2 Driver Related Map Descriptor Parameters
Name of Node to fetch data from or send data to. Needed for
Explicit Addressing.
One of the Node names
specified in Section 6.2.2
Standard network variable type of the data
Specifies which record out of a complex SNVT we are after.
Specifies the measurement units (e.g. Metric or English)
Specifies the length in bytes of an UNVT. This Parameter is
compulsory when SNVT_Type is set to UNVT, the parameter is not
used in conjunction with SNVT’s
Specifies the Type Number to apply to this particular UNVT. This
Parameter is optional when SNVT_Type is set to UNVT, the
parameter is not used on conjunction with SNVT’s
0, 146-255. See Appendix
A.1
Network Variable updates with values less than specified in this field
will be ignored.
Network Variable updates with values higher than specified in this
field will be ignored.
Network Variable updates where the value’s delta change is less
than specified in this field will be ignored unless the Max_Scan_Time
Condition has been met. Compulsory for Throttling Lon Functions,
used on other Lon Functions. It is possible to configure a start-up
write option for throttling Map Descriptor functions instead of
waiting for the minimum scan time to pass. Refer to Appendix A.3.
The Self-Documenting String for this Network Variable.
Normal Text up to a length
of 40 characters. Defaults to
"" for parameters using
string values and 0 for
parameters using numeric
values
6.2.3.3 Timing Parameters
Minimum Scan Time in seconds.
Maximum Scan Time in seconds.