Using with Campbell Scientific Dataloggers
5
should report it has been successful. If so click done and exit the
program.
Note that with version 4.0 on of the MDA program you are given the
option to save both the modem and logger setup to a file, which is
useful if setting up multiple loggers with the same setting. You can
load the setup when the program is first started.
9.
Now connect the modem to the data logger either with the supplied
cable if using the RS232 connection, or via one of the interfaces if
connecting to the CS I/O port.
10.
Install the aerial supplied as high as possible on your mounting
structure and away from any vertical metal poles. Route the cable into
the enclosure and connect it to the aerial socket on the COM111 modem
labelled “GSM” – this may involve use of a coaxial adaptor (supplied if
needed).
11.
Connect the power supply to the COM111 modem, by connecting the
red/black power lead either directly to the outlet of the power supply, if
powering the device continuously, or to a suitable power switch – see
Section 5.3 below. It is best to connect the power as close as possible
to the battery rather than to terminals on the data logger if possible.
12.
Turn on the power to the data logger and COM111 modem. The status
LED on the end of the modem, near the SIM socket should come on
continuously initially. After a period of about 15 seconds the LED will
start to flash briefly every 2-3 seconds. When the LED starts to flash it
indicates that the modem has registered on the phone network
successfully. Note the frequency of flashing will vary depending on the
power state of the modem and whether data is being transferred.
Start-up your PC and run PC400, Loggernet or your chosen communications
program. Set up an IPPort connection to the data logger, following the
instructions for your software package to do this. Enter the IP address
relevant to the SIM card and the port number to match the one you entered in
step 5 above. If the IP address is a public address you should then be able to
make a test connection to the logger using the connect tool in the program
being used. If the IP address is fixed, but private, you may have to open a
VPN connection to the private network, following details from your SIM
provider, before attempting to make the connection to the data logger.
If the connection does not work you can reconnect the modem to the PC and
use the diagnostics tool in the Mobile Data Assistant to check the network
connection and signal strength. Please also refer to the fault finding section
in this manual.
The COM111 includes features to prevent it locking up
and going offline. However, there are still some rare
events, e.g. voltage surges or network reconfiguration
from which it may not automatically recover. For the
highest reliability it is therefore advisable to include code
within your data logger program to reset the modem at
regular intervals. Please refer to Section 9 of this manual
for more details of how to do this.
CAUTION
