參數(shù)資料
型號(hào): XBIB-U
廠商: Digi International/Maxstream
文件頁(yè)數(shù): 18/72頁(yè)
文件大?。?/td> 1116K
描述: BOARD USB ZIGBEE MOD PRO
設(shè)計(jì)資源: XBIB-U Shematic
標(biāo)準(zhǔn)包裝: 1
附件類(lèi)型: 接口板
適用于相關(guān)產(chǎn)品: XBee 和 XBee Pro 收音機(jī)
XBee/XBeePRO"燨EM燫F燤odules??02.15.4?爒1.xAx燵2007.05.031]
2007燤axStream,營(yíng)nc.
牋牋?8
Chapter??燫F燤odule燨peration
The End Device selects a Coordinator to associate with according to the A1 parameter
Reassign_PANID and Reassign_Channel flags:
Reassign_PANID Bit Set (bit 0 = 1)- End Device can associate with a PAN with any ID value. 
Reassign_PANID Bit Not Set (bit 0 = 0) - End Device will only associate with a PAN whose 
ID setting matches the ID setting of the End Device.
Reassign_Channel Bit Set (bit 1 = 1) - End Device can associate with a PAN with any CH 
value.
Reassign_Channel Bit Not Set (bit 1 = 0)- End Device will only associate with a PAN whose 
CH setting matches the CH setting of the End Device.
After applying these filters to the discovered Coordinators, if multiple candidate PANs exist, the
End Device will select the PAN whose transmission link quality is the strongest. If no valid Coor-
dinator is found, the End Device will either go to sleep (as dictated by its SM (Sleep Mode)
parameter) or retry Association.
Note - An End Device will also disqualify Coordinators if they are not allowing association (A2 -
AllowAssociation bit); or, if the Coordinator is not using the same NonBeacon scheme as the
End Device. (They must both be programmed with NonBeacon code.)
3. Associate to Valid Coordinator
Once a valid Coordinator is found (step 2), the End Device sends an AssociationRequest mes-
sage to the Coordinator. It then waits for an AssociationConfirmation to be sent from the Coor-
dinator. Once the Confirmation is received, the End Device is Associated and the Associate LED
will blink rapidly (2 times per second). The LED is solid if the End Device has not associated.
4. End Device Changes once an End Device has associated
Changing A1, ID or CH parameters will cause the End Device to disassociate and restart the
Association procedure.
If the End Device fails to associate, the AI command can give some indication of the failure.
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