Campbell NL241, Instruction Manual

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NL241 Wireless Network Link Interface
16
If the Wi-Fi has been disabled via the Mode button configuration, or via an
IPNetPower() instruction from the datalogger, the LED will be off. See
Section 6.7 , Mode Button
(p. 16)
, for information on the
Mode
button
configuration.
Operating System Upgrade
When a new operating system is sent to the NL241, the LED will blink
repeatedly while the NL241 copies the operating system into its internal flash
memory. This process takes about 10 seconds. While the LED is blinking, the
NL241 is in a vulnerable state where removal of power could leave the NL241
without a valid operating system. Do not remove power until the LED stops
blinking.
If an operating system upgrade includes an upgrade to the internal Wi-Fi
module firmware, after the typical re-flashing and blinking of the LED, the
device will power up and start copying the new firmware to the Wi-Fi module.
The LED will also blink during this process. It will start out as a slow blink and
get faster and faster as the process nears completion. This process can take up
to two minutes. Again, do not remove power until the LED stops blinking.
6.7 Mode Button
The behavior of the Mode button is determined by the Mode Button
Configuration setting on the DevConfi g Wi-Fi tab:
Disable Button
If this configuration is selected, pressing the button will have no effect on
the operation of the device. The Wi-Fi network will continue to work as
configured.
Temporarily Enable Wi-Fi
If this configuration is selected, the configured Wi-Fi network will
normally be disabled, and it will be activated temporarily when the button
is pressed.
Temporarily Create a Network
If this configuration is selected, the device will temporarily create a
network when the button is pressed. If the Wi-Fi Configuration is set to
Join a Network , the temporarily created network will be an open network
with the name “NL241_ SerialNumber .” If the Wi-Fi Configuration is set
to Create a Network , the configured Wi-Fi network will normally be
disabled and it will be temporarily activated when the button is pressed.
Note that when the Wi-Fi Configuration is set to Create a Network , the
device behavior is the same for both button configurations.
Temporary Network Duration
When the Mode button is used to temporarily enable or create the Wi-Fi
network, it will stay powered for at least 5 minutes. There is a 5-minute