FieldServer LonWorks FS-8700-21 - Manual (Page 45)

FS-8700-21 LonWorks Manual Page 45 of 72
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Appendix D.2. Performance Tests for LonMark Certified blocks
Appendix D.2.1. Startup times, 10 Input Blocks and 10 Output Blocks totalling 80 NVs
Device
Startup Time
without a
config 1st Startup
Time with
config Restart Startup
Time with
config Commission
Time (load XIF
first) Commission
Time (upload
from dev.)
FFPLon/QuickServer 48 seconds 193 seconds 135 seconds
X30 57 seconds 63 seconds 62 seconds
X20 37 seconds 60 seconds 58 seconds
Appendix D.2.2. Startup times, 20 Input Blocks and 20 Output Blocks totalling 160 NVs
Device
Startup Time
without a
config 1st Startup
Time with
config Restart Startup
Time with
config Commission
Time (load XIF
first) Commission
Time (upload
from dev.)
FFPLon/QuickServer 48 seconds 460 seconds 306 seconds 260 seconds 802 seconds
X30 57 seconds 63 seconds 62 seconds
X20 37 seconds 60 seconds 58 seconds
3) We need an eNote on using the LonMark Tool. Please make sure the DUR exists, and yes it has to come to me
for documentation.
Appendix D.3. SNVT_Type
The following section describes each SNVT as implemented on the FieldServer LonWorks driver.
Data Length – The number of Data Array elements required when specifying a Data Array name under a Map
Descriptor.
Suggested Data Array Formats – This field suggests FieldServer Data Array formats in ascending order of storage
space required while ensuring data integrity. It is not recommended to store a byte value in a bit Data Array since
only the values 0 and 1 will be retained from the byte value resulting in a loss of resolution. If a byte value is
stored in a Floating point Data Array, 3 bytes will go to waste. A SNVT with more than one data item may require a
float Data Array format to prevent loss of resolution. Since FieldServer Map Descriptors can only work with one
type of Data Array format for all the data items in a SNVT, it is sometimes necessary to use a Float Data Array
element for all data items of which some may only have required a Byte. Fortunately, all SNVT’s are short in length
and RAM is adequately provided for on the FieldServer. If a loss in resolution can be tolerated, any Data Array
format may be used.
The range of FieldServer Data Arrays formats are:
Data Array Format Description Values Range
BIT 1-bit 0, 1
BYTE 8-bit Byte 0.. 255
SINT16 16-bit Signed Integer -32, 768... 32, 767