APOGEE
Wireless
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Checking Link Quality (LQI)
Use the LQI command to check the communication quality for the last hop of received messages. This
command provides information for both the quality of the last received message and average quality of all
messages received over the past 60 seconds. Link quality can be affected by signal strength between
nodes, wireless interference, and obstructions.
Generally, links with higher link quality also have lower cost.
To view the link qualities for a node:
1. Type one of the following:
•
LQI TLX
•
LQI FPX
•
LQI FLNX
x
(where
x
is the FLN device address (drop))
•
LQI FLNX
y
(where
y
is the FLNX EUID)
2. Press
ENTER
.
The following example shows link quality information for an FPX and the FLNXs that it communicates with.
>LQI FPX
----- Last Hop Link Quality (Last RX and Ave) -----
TLX 100.0%
100.0%
FLNX-0 100.0%
100.0%
FLNX-12 100.0%
100.0%
FLNX-13 100.0%
100.0%
FLNX-3 100.0%
100.0%
FLNX-16 98.9%
99.8%
FLNX-19 67.0%
86.8%
FLNX-21 100.0%
100.0%
FLNX-17 100.0%
92.1%
Most Recent
Message
Average of All Messages
in Past 60 Seconds
WLAN0033R1
Figure 9.
Example Results from the TLX LQI Command.
16
Revision Date: June 20, 2006
Siemens Building Technologies, Inc.
CONFIDENTIAL: For Internal Use Only