FieldServer LonWorks FS-8700-21 - Manual (Page 46)

FS-8700-21 LonWorks Manual Page 46 of 72
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UINT16 16-bit Unsigned Integer 0.. 65, 535
SINT32 32-bit Signed Integer -2, 147, 483, 647... 2, 147, 483, 647
UINT32 32-bit Unsigned Integer 0.. 4, 294, 967, 295
FLOAT 32-bit Float -3.40282E38... 3.40282E38
Values Range – These are the only values that will be allowed for the SNVT, e.g. a value of 101 will not be
processed in a read or write on SNVT_Switch’s Value data item.
Invalid Value – The Invalid value is used to force the data item’s value should a value outside the value range be
encountered in a read or write. Should the invalid value be N/A ( Not Applicable ), the data item’s value will be
bounded by the indicated values range, e.g. an incoming read value of 101 will be stored as 100 for SNVT_Switch’s
Value data item. Note that in some cases both the type and raw values are specified. Raw values are not of the
same type of the SNVT’s measurement type, i.e. they are not scaled.
Data Item – SNVT’s containing more than one data item have a name specified for each item. This name can be
used in the SNVT_Option field of a Map Descriptor to isolate only this one item.
SNVT_abs_humid
Data Length 1
Suggested Data Array Formats Float
Data Item 1
Measurement Units Values Range Invalid Value
Absolute humidity gram/kilogram 0.. 655.34 Raw: 65,535 (0xFFFF)
Type: 655.35
SNVT_address
Data Length 1
Suggested Data Array Formats Uint16, Float
Data Item 1
Measurement Units Values Range Invalid Value
Neuron Chip Address 16-bit address value 16,384 .. 64,767 N/A
SNVT_alarm
Data Length 25
Suggested Data Array Formats Uint16, Float
Data Item 1-6
Alm_Location00,
..Alm_Location05
Measurement Units Values Range Invalid Value
Location array element 8-bit unsigned byte 0 .. 255 N/A
Data Item 7 Object_ID
Measurement Units Values Range Invalid Value
Object ID object index 0 .. 65,535 N/A
Data Item 8 Alarm_type
Measurement Units Values Range Invalid Value
alarm_type_t N/A 0 .. 254 255 (0xFF)(AL_NUL)
Data Item 9 Priority_level
Measurement Units Values Range Invalid Value
Priority_level_t N/A 0 .. 11 255 (0xFF)(PR_NUL)
Data Item 10 Index_to_SNVT
Measurement Units Values Range Invalid Value
Index to NV
index of NV causing
alarm
0 .. 65,535 N/A
Data Item 11-14
Alm_Value00,
..Alm_Value03
Measurement Units Values Range Invalid Value
Value array element specific to NVT 0 .. 255 N/A
Data Item 15 Year
Measurement Units Values Range Invalid Value
Year year 0 .. 3000 N/A