User guide
Table Of Contents
- Guarantee
- Contents
- CS-GPRS Communications Package
- 1. Introduction to GPRS
- 2. Hardware
- 2.1 Power use considerations
- 3. Network Contract and SIM card
- 4. Datalogger firmware
- 5. PC Software required
- 6. Basic Datalogger setup
- 7. General Principles of Operation
- 7.1 Using systems with fixed, public IP addresses
- 7.2 Using systems with dynamic IP addresses
- 7.3 Keeping the connection open
- 7.4 Firewall issues
- 7.5 Minimising call costs and power use
- 7.6 Calling the logger in GSM data mode
- 8. Fault finding
CS-GPRS Communications Package
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Note that Device Configuration program only reads these settings once when the
program starts. If you wish to monitor the IP state of the PPP connection in real-
time use the Data Monitor tab of the program and look at the status screen. Look
at the IPInfo field (about 2/3 of the way down the list). This shows the same
information as above but is automatically updated every few seconds.
Do not leave the Device Configuration program program connected
to the datalogger permanently as it can interfere with
communications back to Loggernet via the PPP connection as by
default it shares the same Pakbus address as the Loggernet server.
If the IP address shown 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 tips in the CS-GSM manual, including checking
the signal strength and network registration.
• Check the Modem was configured correctly.
• Check the setup of the logger particularly for the baud rate and TCP/IP
setting of the dial string, response code, username and password.
• Check you have set the APN correctly either by programming the modem
or embedding the command in the dial string.
• Double check with your airtime provider that the SIM is GPRS enabled.
• Check the datalogger operating system is up to date.
NOTE