Operation in meter mode
ZDUE-LTE-PLUS-VII
Page 27 of 62
Disturbances in the mobile network or with the mobile network provider can,
for example, cause the ZDUE-LTE-PLUS-VII attempts to log in and dial in to
fail. To prevent the device from continuously trying to connect to the mobile
network (and possibly incurring costs in the process), the ZDUE-LTE-PLUS-
VII has two timers and a counter that can be used to control the behaviour in
such cases of interference.
For the IP server mode, these parameters are contained in parameter class
82 (see 7.3.4). For the IP telemetry module, these parameters are found in
parameter class 70 and 78 (see chapter 7.3.5 and 7.3.7).
The ZDUE-LTE-PLUS-VII proceeds in two stages. If a login attempt fails, a
number of login attempts defined by the
counter
is
repeated at a certain
interval (
Timer 1
) before the device performs a module reset after
Timer 2
has expired and restarts the login process.
Device startup
Switch off radio module
Switch on radio module
Logon to the
Mobile network
Was the login
on the mobile
network
successful?
Operation
Wait (
Timer 1
)
Was the maximum
number of
attempts (counter)
reached?
Wait (
Timer 2
)
no
yes
no
yes
Connection establishment in IP server mode
Counter:
Class 82
–
Number of login attempts
Timer 1:
Class 82
–
Connection timeout on failed mobile network login attempt
Timer 2:
Class 82
–
Waiting time after x failed attempts Mobile network login
