
sLON-5, sLON-6 rev1 03/2005 19
Table-5 LED Indication.
Indicator Context Status Corrective Action
Data Reception LED – amber Anytime
Blinks when the controller receives data from the
LONWORKS Network. None required.
On indicates a possible network connection problem, or
a large amount of network traffic is present.
Remove the LONWORKS Network
connections from the controller and
determine if the LED goes off. If the
LED does not go off, replace the
controller. If the LED does go off,
check the network topology (con-
nections to each node, routers, ter-
minators, etc.) and the amount of
traffic on the network.
Off indicates that data reception is not taking place.
None Required
Data Transmission LED –
Green Anytime
Blinks when the controller transmits data to the
LONWORKS Network.
On indicates that the controller is not transmitting data.
On also indicates that power is being applied to the
controller.
Off indicates no power to controller. Check power
Service LED – Red
Power-up The LED blinks once to indicate successful power-up.
None Required
Wink mode
Blinks (3 seconds on, 1 second off) three times to
indicate physical location of the controller. If a sensor
(sLON-WTSx) is connected, its red occupancy LED will
flash (1/sec) during the wink period.
Anytime On indicates that the neuron application is not running.
Neuron applications are not field replaceable. Replace the controller.
Anytime
Blinks (1/sec) to indicate that the neuron application is
loaded, but the neuron’s communication parameters
are not loaded, are being reloaded, or have been
corrupted. Neuron is considered unconfigured.
Communication parameters cannot be configured by
field personnel.
Use a third party network manage-
ment tool to commission the control-
ler, or use the change state tool in
WPT Software Tool (version 4.0 or
greater) to set the Neuron®to the
configured/on-line state.
While the controller is unconfigured,
WPT Software Tool can be used to
download an application, but at the
completion of the download, WPT
Software Tool versions 4.0 and
higher will restore the Neuron to the
unconfigured state.
Anytime
Off may indicate that the neuron application is loaded
but the device is off-line. In this state, a pre-loaded
HVAC application will not run.
Use a third party network manage-
ment tool to commission the control-
ler, or use the change state tool in
WPT Software Tool (version 4.0 or
greater) to set the Neuron to the
configured/on-line state.
While the controller is off-line, WPT
Software Tool can be used to
download an application, but at the
completion of the download, WPT
Software Tool versions 4.0 and
higher will restore the Neuron to the
off-line state.
Anytime
Off usually indicates a normal state. In this state, the
controller operates normally, and you can download
and/or run HVAC applications.
If the controller is able to accept
and/or run a downloaded HVAC
application, no action is required.