16
Flat-rate tariffs are usually cheaper than paying for the actually transferred data.
On a pay-as-you-go contract without lump-sum tariff you should negotiate an upper
volume or fee limit with your supplier.
Please note that certain contracts are based on block rounding for the transferred
data. Select a contract with daily or session-based block rounding. Hourly block
rounding or block rounding with large data blocks (>100 kB per day) is not
advisable.
6�4�2 Installation instructions for the MaxWeb xp GPRS
The magnetic-base aerial provided is designed for application in dry rooms. It must
not be placed in metal cabinets, behind thick concrete walls, in basements or other
electromagnetically screened spaces. Installation of the aerial and operation of
MaxWeb xp GPRS near areas with strong electromagnetic radiation or areas that are
sensitive to such radiation should be avoided.
Note
Insufcient reception means greater data volumes due to malfunctioning con-
nections. You can still read the signal strength after completing the Wizard
process at “Plant data – Overview”. The value of the signal strength displayed
must be at least “16”.
For locations with weak GSM reception a rod aerial with 3 dB gain is available from
your SolarMax distributor. This aerial may be installed outdoors.
Connect the magnetic base or rod aerial to the designated “GSM” screw terminal.
Tighten the locking nut without forcing it until the limit stop is reached.
Do not insert the SIM card until you reach the step described below.
To install the SIM card, open MaxWeb xp using a small Phillips screwdriver.
Proceed with caution when installing the SIM card. Do not use force and avoid con-
tact with the electronic components. Leave the SD card in its base.
6�4�3 GPRS conguration
1. Connect the the Ethernet socket of your PC with the Modem socket of the MaxWeb xp
using the red crossover cable.
Note
To access MaxWeb xp the network connection of your PC must be appropri-
ately congured (see Section 6.2.3).
2. Switch MaxWeb xp on (see Section 6.1).
3. Enter “http://192.168.1.1” in the web browser.
4. Click OK at the login screen (no user name/password is required) and select GSM/
GPRS.
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