Campbell COM110A, User Manual

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Using with Campbell Scientific Dataloggers
3
4. Connect the power supply to the COM110A 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
6.3 below. It is best to connect the power as close as possible to the battery
rather than to terminals on the datalogger if possible.
5. Turn on the power to the datalogger and COM110A modem. The status LED
on the end of the package, 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 signed onto the phone network successfully. Note the frequency
of flashing will vary with the depending on the power state of the modem and
whether data is being transferred.
6. Start-up your PC and run PC400, Loggernet or your chosen communications
program. Set up a phone or TAPI connection to the datalogger, following the
instructions for your software package to do this. Enter the data phone
number assigned to your SIM as the phone number of the datalogger to be
called.
7. Apply the setup setting and then connect to the datalogger. You should find
the PC connects to the datalogger and the displayed datalogger time then
starts to update showing you have a working system. If this does not happen
please read the rest of this manual in more detail.
The COM110A 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 datalogger
program to reset the modem at regular intervals. Please refer
to Section 10 of this manual for more details of how to do this.
3. Quick Start Guide
– for GPRS communications
The COM110A modem can also be used for GPRS communications. The
COM110A will support dataloggers that run their own TCP/IP software, e.g. the
CR800, CR1000 and CR3000 loggers or it can be used running TCP/IP functions
built into the modem which will give basic communication over GPRS for other
loggers, e.g. the CR200X.
This quick start section only covers systems which have a SIM card with a fixed IP
address. Other configurations are detailed elsewhere in this manual.
1. Make sure you have a data enabled SIM with the security PIN disabled and
enabled for GPRS use. To insert the SIM card eject the card tray from the
end of the modem by pushing in the button with a small screwdriver or pen.
Put the SIM card in the small card tray taking care the angled corner of the
card matches the moulding in the tray. The gold plated contacts of the card
should be uppermost and remain so when the card tray is pushed back into
the modem.
2. Now the modem and logger should be setup using the Mobile Data Assistant
package. To do this you require a modem programming cable (a grey 9 to 15
way serial cable), plus an optional USB-Serial convertor, a cable to allow
communication with the datalogger and a power supply to power the modem
and logger.
3. Install the Mobile Data Assistant package and start it running. You will be
presented with a screen like that shown below.
CAUTION