Campbell NL241, Instruction Manual

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NL241 Wireless Network Link Interface
22
collection of a network of dataloggers every 15 minutes, consider setting the
Verify Interval to 30 minutes.
Neighbors Allowed
(RS-232 port only) – You can set a list of “acceptable
neighbors” which the NL241 expects to hear from within set intervals (the
verify interval). If the NL241 does not hear from neighbors in this list within
the verify interval, it will attempt to contact them on its own. It will ignore all
devices it hears that are not on the Neighbors Allowed list except if the
PakBus® address is
≥
4000. Hello messages from devices with PakBus address
≥
4000 are automatically accepted as neighbors.
8.2.1.1 Physical Setup
Using the supplied serial cable, connect the NL241 CS I/O port or RS-232 port
to the datalogger CS I/O or RS-232 port, respectively. The NL241 will be
powered if connected via CS I/O . Alternatively, power the NL241 through the
barrel-connector jack located on the edge of the device. Connect the NL241 to
your local wireless network by attaching an antenna to the NL241 antenna
connector. Ensure that the device is powered up by inspecting the LED.
8.2.1.2 Configuring the NL241
RS-232 PakBus® Router
•
Connect to the NL241 in DevConfig (see Section 7 , Configuring the
NL241
(p. 17)
).
• On the
NL241
tab:
o Set Bridge Mode to disable .
•
On the RS-232 tab:
o
Set Configuration to PakBus .
o Set
Baud Rate
to baud rate of attached device.
o Set Beacon Interval , Verify Interval , and PakBus Neighbors
Allowed as described above. Often, the default values can be used.
However, an allowed neighbors list can be useful in restricting
communication paths.
• On the Network Services tab:
o Make note of the PakBus/TCP Service Port . (The default
PakBus/TCP Service Port is 6785 . Unless firewall issues exist, it is
not necessary to change the port from its default value.)
CS I/O PakBus® Router
•
Connect to the NL241 in DevConfig (see Section 7 , Configuring the
NL241
(p. 17)
).
o Set Bridge Mode to disable .