User Guide
Table Of Contents
- _
- 1 GENERAL DESCRIPTION
- 2 ELECTRICAL CHARACTERISTICS
- _
- 3 PIN ASSIGNMENTS
- 4 OEM DESIGN CONSIDERATIONS
- 5 RF PARAMETERS
- 6 READING PARAMETERS
- 7 GPIO CONFIGURATIONS
- 8 DIAGNOSTIC FUNCTIONS
- 9 DIMENSIONS
- 10 SMT ASSEMBLY PROCESS AND THERMAL PROCESSING
- 11 REGULATORY AGENCIES INFORMATION
2013‐09‐27
NUR‐05WL2ImplementationGuidev1.1
Tableindicatingpersistencecharacteristicsofgen2tags.
Flag Persistence:tagpowerON Persistence:tagpowerOFF
S0 indefinite none
S1 500ms<t<5s 500ms<t<5s
S2 indefinite t>2s
S3 indefinite t>2s
BychangingthetargetsettingfromA targettoBtargetreaderisabletoreadalsotagsthathasflippedits
statetoBstate.ThiswouldhappeniftagswouldhavebeenreadrecentlyusingSession12or3.NUR‐05WL2
modulealsosupportsdualtargetmode.Inthatmodereaderwillchangethetargetmodebetweeninventory
rounds.BydefaulttargetmodeAisused.
6.3 ROUNDS
The rounds setting defines how many query rounds is done inside one inventory round. After every
inventoryroundthereaderwillsenddatatotheHost.Selectablevaluesare0 –10.Zeromeaningautomatic
roundsadjustment.Theautomaticadjustmentdecidesaftereveryqueryroundwhetheranotherroundis
necessarybasedonthenumberofdatacollisions.Bydefaultroundssettingissetto0.Thissettingcanhelp
thereadertofindallthetagsthatareinthereadersreadingfieldwhenusingsession0.Becausetagsthat
arefoundin query round1 doesn’treplayinthefollowing query rounds.Whenusingsession 1/2/3this
doesnotmakeanysignificantdifferencebecausetagsthatarereadarequietanyway.
Tabledescribingrelationbetweeninventoryroundandqueryround.
Inventoryround
Round1 Round2 round3 … Round10
6.4 SELECTINGTHERIGHTREADINGPARAMETERS
Oneapproachistotesthowmanytagsareinthereadersreadingfieldsimultaneously.Keepthereaderstill
atthepositionthatisasclosetorealreadingenvironmentaspossibleandseehowmanytagsarefound.
Basedonthatamountchooseyouropenslotnumbertobe1.5–2timeslarger(refertothesection6.1).If
readerwillfacemanydifferenttagpopulationsauto‐Qsettingwillbeagoodchoice.