Microtronics 305001, Руководство пользователя

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measurement values for the last thirty minutes are always shown in the ALOHA data window, which
means that data from a previous ALOHA transmission may be included. The ALOHA data is
generated every three seconds independently of the normal measurement value and is thus not
saved with the standard measurement data.
Measurement values are still generated as normal during ALOHA transmission mode. The
measurement data records are saved in the standard measurement data and transferred the next
time a connection to the myDatanet server is established.
6.4 Automatic selection of the GSM network
The GSM network to which the device should register must be selected, as the myDatalog2Ex is
equipped with a SIM chip that provides a mobile connection via a variety of international service
providers (see www.microtronics.at/footprint ). This is completed automatically by the device. During
this process it is taken into consideration if a connection to a certain GSM network is possible
although the use of this GSM network repeatedly causes transmission errors. Such a GSM network is
added to a ban list and is ignored during the next login attempt.
The following conditions ensure that the myDatalog2Ex logs itself into a GSM network:
l
Initiation of ALOHA transmission mode (see "ALOHA transmission mode" on page 35)
l
More than three consecutive connections could not be established.
1. The myDatalog2Ex checks whether any errors occurred during the last login attempt.
No errors:
The myDatalog2Ex logs into the same GSM network that was also used during the last
attempt.
Error:
Continue with step 2
Note: A transmission error is not the same as an error that occurs when logging into
the GSM network. It is possible for the login to the GSM network to work correctly but
that a transmission error still occurs.
The following steps are only completed if an error was detected during step 1:
2. The device searches for GSM networks within its receiving range and creates a list of available
GSM networks.
3. A search of the list of available GSM networks is completed and the strongest GSM network is
selected that is not on the "ban list" and is assigned to one of the service providers
supported by the integrated SIM chip (see www.microtronics.at/footprint).
Note: An explanation detailing the conditions when a GSM network is added to the "ban list" is provided in
"Ban list" on page 37.
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