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Appendix A.8.1. Extending the List of Show Attributes
Youcanextendthelistofattributesandattribute statesthatthedriverrecognizesby modifyingtheconfigurationCSVfile.
Thefollowingexampleaddsthreeattributesand4a ttributestates.Ifadevicereportsan attributeof‘LIGHTSTATE’as‘BRIGHT’thenthedri verwillloadarrayelement32with thevalue41.
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Keyword | AttributeDefinitions. | Whenallocating | Thethree |
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startsanew | Thenamewillbe | methodsare |
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sectionofthe | strippedofall | offsets,bemindful | described | Protocolmust | ||||
CSVfile. | spacesbetweenthe | oftheoffsets | above. | bedefinedon | ||||
| lastcharacterand | alreadyused. |
| everyline. | ||||
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Driver_Table |
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sim4100_Attr_Name, | sim4100_Attr_Offset, | sim4100_Attr_Method, | protocol |
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BROKEN, |
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FIXED, |
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LIGHTSTATE, |
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Driver_Table |
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sim4100_Attr_State_Name, | sim4100_Attr_State_value, | protocol |
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DIM, |
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BRIGHT, |
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AttributeStates. | pre definedlistofstates. |
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Appendix A.9. Synchronizing the FieldServer with the Panel
WhenusingtheXpointfunctiontostorepointstate | s,eachtimethepaneldoesawarmstart | |
itsetsallpointstatestonormalandthenstarts | evaluatingeverysingleone.Thus,aftera | |
warmstart,theFieldServerwillreceiveXpointmes | sagesfromthepanelforeverypointnot | |
inanormalstate.Thisprovidesonesynchronizatio | nmethod.Thelimitationofthismethodis | |
thattheSimplexpanelsdonotreportwhenapoint’ | sstatechangesbacktonormal.Thusto | |
maintainthesynchronizationtheupstreamdevicemu | stclearthepointtozeroonceithas | |
readitsabnormalstate,i.e.Theupstreamdevice | shouldconsiderthedatareportedbythe | |
Xpointfunctionaslatcheddata. |
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A second method is to connect/reset the FieldServer | when there are no points in an | |
abnormalstate. |
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AthirdmethodispollpointstatesusingtheClist | functionasdescribedinAppendixA.20. | |
ThiswaytheFieldServerstateswillalwaysbeupda | ted.Pollingisslowandinasystemwith | |
manypointsitispossiblethatitmaytakeseveral | minutestoupdatestatusinformationforall | |
points. Thuscombiningthismethodwiththeuseof |
| XpointMapDescriptorsgivesthebest |
ofbothworlds. Whenapointchangesto‘not’norm |
| al,thentheFieldServergetsthestate |
change from the Xpoint function immediately and at | the same time synchronization is | |
assuredbythecontinuouspolling. |
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FieldServer Technologies1991TarobCourtMilpitas,California95035USA | Web:www.fieldserver.com | |||
Tel:(408)2622299 | Fax:(408)2622296 | Toll_Free:8885091970 | email:support@fieldserver.com | |
