Using with Campbell Scientific Dataloggers
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updated every few seconds. Scroll down to view the IPInfo values. If the
ppp IP field is 0.0.0.0 there is no active connection. If valid IP addresses are
shown as in the example below all is OK.
If the IP address shown in the status box above stays at 0.0.0.0, here are
some basic checkpoints to follow:
Check the cabling to the logger, power supply and aerial. Check the
modem is powered and on network (there is normally an LED
which flashes slowly to indicate this). If the LED is on permanently
then check the SIM card is inserted correctly and the retaining
switch is clicked across. If it still does not work try the SIM in a
mobile handset and follow the fault finding above, including
checking the signal strength and network registration.
Check the modem was configured correctly.
Check you have set the correct APN, username and password.
Double check with your airtime provider that the SIM is GPRS
enabled.
Check the data logger operating system is up to date.
If the data logger has firmware version 22 onwards additional information is
provided in the IPInfo field of the status table that can be used to track
progress of PPP connection. The information is shown at the end of the
address messages after the "ppp gw:..." information. This field can be
monitored with the Device Configuration program, or in the Table monitor
of the Connect client of Loggernet. Either of those programs only update
every second, at best, which may not be fast enough as some of the
information messages displayed are transitory. To get a faster update of the
message you need to use the numeric monitor screen and show the IPInfo
