EZmode绑定后，改为单播发送，无法发送成功

基于CC2530，在协调器中接收节点的网络地址如下
static void zclSampleDoorLockController_ProcessZDOMsgs( zdoIncomingMsg_t *pMsg )
{
  switch ( pMsg->clusterID )
  {
  case Device_annce:
      EDShortAddr[0]=pMsg->srcAddr.addr.shortAddr;
  }
}

然后单播发送到节点，发现发送不成功，但是改为AddrNotPresent模式即可发送成功，是什么原因单播发送不成功

zclSampleDoorLockController_DstAddr.addrMode = (afAddrMode_t)Addr16Bit;//单播
              zclSampleDoorLockController_DstAddr.addr.shortAddr =EDShortAddr[0]; 
zclClosures_SendDoorLockUnlockDoor( SAMPLEDOORLOCKCONTROLLER_ENDPOINT, &zclSampleDoorLockController_DstAddr, &cmd, TRUE, zclSampleDoorLockControllerSeqNum++ );