9. If communicating over a slow or intermittent connection, it may be necessary to lower the
Maximum Packet Size of the data logger in
LoggerNet
Setup and/or add Extra Response
Time to the PakBus Port in
LoggerNet
Setup.
10. Reset the NL241 to its default settings.
If none of the above steps correct your communications problems, reset the NL241 to its
default settings. This can be done using the Factory Defaults button in
Device
Configuration Utility
or by using the Defaults command in a Telnet session with the NL241.
11. Verify the latest revision of firmware (operating system) is running. It is possible that an
issue affecting your ability to communicate via the NL241 is resolved in the latest version.
The latest firmware version and its revision history can be found at
. There is no charge for this download. See
(p. 64) for instructions on downloading the firmware revision to the
NL241.
12. If the above steps do not resolve the issue, please call Campbell Scientific, for help. Before
calling, it would be helpful to do the following:
a. Obtain a detailed description of your network setup including TCP/IP address, port
number, PakBus settings, and other pertinent information regarding all of the
devices in the NL241 communications network.
b. Save a copy of the NL241 settings (in XML format) using
Device Configuration Utility
.
c. Save a copy of the NL241 event log. This is low-level code that can be used by
Campbell Scientific technical support to help troubleshoot the NL241. To obtain the
event log, the NL241 must not be in bridge mode. Telnet into the NL241 using your
favorite Telnet program. Once logged in, type “eventlog” at the prompt. Record the
date and time that you did this. Copy and paste the output into a text file.
d. Once the eventlogs have been copied, type “eventlog erase” at the prompt to clear
the log. To add a date to indicate when the logs were last cleared enter “eventlog
erase date” where date is a string of up to 8 characters.
After calling Campbell Scientific for help, email your network description, the newly created text
files, and the saved XML settings file to the person you are working with.
NL241 Wireless Network Link Interface
41