
Troubleshooting
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Troubleshooting
8.1
Faults Indicated by LEDs
For more information on the LED indications, see chapter 6.1.1.
Note!
To save battery power all LEDs are off during normal operation, even if the device is
communicating or joining the network. The LEDs only light up after start up or while pressing
the buttons.
Green LED (battery status)
State
Possible Cause(s)
Action(s)
LED flashes at 1 Hz Warning: less than one month of
battery life is left.
Change battery as soon as
possible. See chapter 7.1
LED flashes at 3 Hz Alarm: the battery is critically low,
loop power cannot be supplied.
Change battery immediately. See
chapter 7.1
LED off
Off: the battery is flat or
disconnected.
Change/connect battery. See
chapter 7.1
Yellow LED (communication status)
State
Possible Cause(s)
Action(s)
LED flashes at 1 Hz Joined, no alternative path: the
device was able to join the network.
However, it can communicate with
a single wireless node only. There
is no alternative communication
path to the gateway.
■
Add a
Wireless
HART device
that is within the antenna range
of the adapter.
■
Change the position of the
adapter.
LED flashes at 3 Hz Joining: the device is attempting to
join the network.
none
LED off
Not joined: joining the network has
failed.The device is no longer
attempting to join.
■
There are no communication
paths available.
■
No
Wireless
HART network has
been set up so far.
■
The Network ID and/or Join Key
is not correct.
■
Add a
Wireless
HART device
that is within the antenna range
of the adapter and try joining
the network again.
Change the position of the
adapter and try joining the
network again.
■
Install a
Wireless
HART gateway
first. Set up a
Wireless
HART
network.
■
Check Network ID and Join Key.
Red LED (device status)
State
Possible Cause(s)
Action(s)
LED on
Internal Fault: an internal fault
condition has been identified
Send the device back to the
manufacturer.