SKF CMWA 8800, Service Manual, Page: 78 / 104

Network Planning and Diagnostics
Network Diagnostics
72 SKF Wireless Machine Condition Sensor
Service Manual
MAC MoteID Jn Nbrs WDev State
00-1B-1E-1A-9A-00-00-9A 15 0 0 [0 ,0 ] Idle
00-1B-1E-1A-9A-00-00-90 27 1 2 [5 ,0 ] Oper
The table below describes each column header that displays in the Network Statistics
Report.
Column
header
Description
ABPower The average RSSI values for transmissions from mote A to mote B.
ABRx Number of packets mote B received from mote A.
ABTx(Fail) Number of packets transmitted by mote A to mote B, and the number
of packets for which mote A failed to receive acknowledgement.
Packets may fail for a number of reasons, including RF interference or
bit errors.
avQ Average number of packets in the mote’s queue waiting to be
transmitted.
BAPower The average RSSI values for transmissions from mote B to mote A.
BARx Number of packets mote A received from mote B.
BATx(Fail) Number of packets transmitted by mote B to mote A, and the number
of packets for which mote B failed to receive acknowledgement.
(Not currently implemented. Acknowledgements are not sent for
downstream data transmission.)
Chg Charge consumption, in millicoulombs.
Hop A verage number of hops (number of jumps from mote to mote before
reaching the gateway) for this mote’s data packets to arrive at
manager.
Id Mote ID number.
Jn Number of times the mote joined since the gateway’s network manager
was last reset.
Late Data latency. The average time (in seconds) for a data packet to travel
from the mote to the gateway manager. The gateway manager
calculates data latency for each packet by subtracting the time the
packet was received at the gateway manager from the packet time
stamp, indicating when the packet was generated by the mote. The
gateway manager averages the data latency of all packets from a mote
to provide the values for network statistics.
Me MAC-layer MIC (message integrity check) errors.
MoteA
MoteB Describes the path from mote A to mote B.
mxQ Maximum number of packets in the mote’s queue waiting to be
transmitted.
Ne Network-layer MIC (message integrity check) errors.
PkDrp Number of data packets dropped by the mote. Packets may be
dropped because the mote’s buffer was full and the mote was unable
to generate a packet.