FieldServer instruction manual FS-8700-21 LonWorks ManualPage 18

Page 18

FS-8700-21 LonWorks ManualPage 18 of 62

6.2.3 Driver Related Map Descriptor Parameters

 

Column Title

 

 

Function

 

 

Legal Values

 

 

 

 

 

 

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

 

 

One of the node names

 

 

Node_Name

 

 

 

 

specified

in “Client

Node

 

 

 

 

Addressing.

 

 

 

 

 

 

 

 

 

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 Metric is

 

 

See Appendix A.9.2

 

 

 

 

 

required

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

UNVT_Byte_Length*

 

 

when SNVT_Type is set to UNVT, the parameter is not used on

 

 

1-255. See Appendix A.1

 

 

 

 

 

conjunction with SNVT’s

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifies the Type Number to apply to this particular UNVT. This

 

 

0, 146-255. See Appendix

 

 

UNVT_ID

 

 

Parameter is optional when SNVT_Type is set to UNVT, The parameter

 

 

 

 

 

 

 

 

A.1.

 

 

 

 

 

 

 

is not used on conjunction with SNVT’s

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NV_Min_Value*

 

 

Network Variable updates with values less than specified in this field

 

 

See Appendix A.2

 

 

 

 

 

will be ignored.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NV_Max_Value*

 

 

Network Variable updates with values higher than specified in this field

 

 

See Appendix A.2

 

 

 

 

 

will be ignored.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Network Variable updates where the value’s delta change is less than

 

 

 

 

 

 

 

NV_Delta_Value*

 

 

specified in this field will be ignored unless the Max_Scan_Time

 

 

See Appendix A.2

 

 

 

 

 

Condition has been met. Compulsory for 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

 

 

 

 

 

 

 

 

 

6.2.4 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 only. Not

 

 

See

Appendix

 

 

 

used on other Lon Functions.

 

 

A.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Max_Scan_Time*

 

 

Maximum Scan Time in seconds. Compulsory for Throttling Lon Functions only. Not

 

 

See

Appendix

 

 

 

used on other Lon Functions.

 

 

A.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents Driver Manual FS-8700-21 LonWorks Table of Contents Appendix D. SNVTType NV Updates/Polls Network ManagementLonWorks Program ID Calculation Spid Explicit/Implicit Configuration PropertiesClients/Servers XIF FilesSupplied by FieldServer Technologies for this driver Provided by the Supplier of 3 rd Party EquipmentAdditional 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 SNVTIndexNetwork Management Capability Client vs Server MappingClient 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.2. Neuron Systems Appendix B.3. Honeywell CareAppendix 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.4. Illegal Characters in Network Variable Names Appendix C.5. CirconSI LimitationsAppendix 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
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