FieldServer instruction manual FS-8700-21 LonWorks ManualPage 22

Page 22

FS-8700-21 LonWorks ManualPage 22 of 62

6.3.4 Driver Related Map Descriptor Parameters

Column Title

 

 

Function

 

Legal Values

 

 

 

 

 

 

 

One of the node names

 

Node_Name

 

 

Name of Node to fetch data from or send data to. Needed for

 

specified

in

“Client

 

 

 

Explicit Addressing.

 

Node

Descriptors”

 

 

 

 

 

 

 

 

 

 

 

above

 

 

 

 

 

 

 

 

 

 

 

SNVT_Index

 

 

Server Network Variable Index

0-4095

 

 

 

 

 

 

 

 

 

 

SNVT_Type

 

 

Standard network variable type of the data

 

See Appendix D

 

 

 

 

 

 

 

 

SNVT_Option

 

 

Specifies which record out of a complex SNVT we are after.

 

See Appendix A.9.1

 

 

 

 

 

 

 

 

 

 

SNVT_Units

 

 

Specifies the measurement units if something other than

 

See Appendix A.9.2

 

 

 

Metric is required

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifies the length in bytes of an UNVT. This Parameter is

1-255.

See

Appendix

 

UNVT_Byte_Length*

 

 

compulsory when SNVT_Type is set to UNVT, the parameter is

 

 

 

 

A.1

 

 

 

 

 

 

not used on conjunction with SNVT’s

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifies the Type Number to apply to this particular UNVT.

0, 146-255.

See

 

UNVT_ID

 

 

This Parameter is optional when SNVT_Type is set to UNVT, the

 

 

 

 

Appendix A.1.

 

 

 

 

 

parameter is not used on conjunction with SNVT’s

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NV_Min_Value*

 

 

Network Variable updates with values less than specified in

 

See Appendix A.2

 

 

 

this field will be ignored.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NV_Max_Value*

 

 

Network Variable updates with values higher than specified in

 

See Appendix A.2

 

 

 

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

 

 

 

 

 

NV_Delta_Value*

 

 

Max_Scan_Time Condition has been met. Compulsory for

 

See Appendix A.2

 

 

 

 

Throttling Lon Functions only. Not used on other Lon

 

 

 

 

 

 

 

 

Functions.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NV_Selfdoc_Text

 

 

The Self-Documenting String for this Network Variable.

 

Normal

Text

up to a

 

 

 

 

length of 40 characters

 

 

 

 

 

 

 

6.3.5 Timing Parameters

Column Title

 

 

Function

 

 

Legal Values

Scan_Interval*

 

 

Seconds per scan

 

0-32000,

 

 

 

 

2s

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Min_Scan_Time*

 

 

Minimum Scan Time in seconds. Compulsory for Throttling Lon Functions

 

 

See

Appendix

 

 

only. Not used on other Lon Functions.

 

 

A.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Max_Scan_Time*

 

 

Maximum Scan Time in seconds. Compulsory for Throttling Lon Functions

 

 

See

Appendix

 

 

only. Not used on other Lon Functions.

 

 

A.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: support@fieldserver.com

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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 Explicit/Implicit Configuration PropertiesClients/Servers XIF FilesProvided by the Supplier of 3 rd Party Equipment Supplied by FieldServer Technologies for this driverAdditional files required for the Driver Service Pin Hardware ConnectionsLon LED’s Port Address SwitchNeuron ID LonWorks Adapter Card FS-X40 onlyImplicit Lon functions Special considerationsMap Descriptor Names Network Variable Names SNVTIndexClient vs Server Mapping Network Management CapabilityClient Side Mapping Connection Parameters Node Parameters FieldServer Related Map Descriptor ParametersDriver Related Map Descriptor Parameters Timing ParametersClient Side Map Descriptor Example Explicit Configurations Lon functionsDomain Table Setup Network Management Client Side Configuration Connections NodesFS-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.3. Throttling Mode Appendix A.1. Using UNVT’sAppendix A.2. Using NVMin, NVMax etc Appendix A.4. XIF GenerationAppendix A.5. Configuration Properties Appendix A.6. LonMark Object CreationCfgnvui Appendix A.7. Node Status Operation Appendix A.8. Working with Binary DataAppendix A.9. Filtering Snvt Variables FS-8700-21 LonWorks Manual Appendix B. Vendor Information Appendix B.1. Echelon LonMakerAppendix B.3. Honeywell Care Appendix B.2. Neuron SystemsAppendix B.4. Tridium Jace Appendix B.5. Trane Rover Appendix C.2. Error Messages Appendix C.1. Debugging a LonWorks connection Hints and tipsAppendix C.3. Exposing Operation Statistics UINT32Appendix 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