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EL-SMS-2G-TP / TP+ / PROBE-G USER MANUAL
User Guide
SMS Retry Process (Continued)
The unit uses the retry sequence shown in the above diagram when attempting to
send either a temperature alert or battery low message:
During the retry process, any other pending notification messages will be
postponed.
The unit will assume that a notification message has been successfully delivered as
long as the message was successfully transferred to the mobile network for at least
one of the programmed numbers.
If after following the above retry sequence, a notification message still can’t be sent
to the mobile network, then the alert will be cancelled and the unit will continue
normal operation looking for new alert conditions to occur. If the cancelled message
was an alarm notification the alarm condition may still be reported in the following:
1) The alarm history in the next alarm message.
2) Most recent alarm in the next summary message.
The unit will only make one attempt to send a summary message. If the attempt
is unsuccessful then the summary message will be cancelled. Regardless of the
outcome the minimum, maximum and average temperature data for the period will
be reset.
1EasyLog Office; ,
6 ,5*#,55*50
00000000000000000
00000000000000000
000000000000000000
7*77224+2+225+2972
22272292,*222292 79
2222222*25*757+5#2
752262272522922522
2
Example screen shot of encrypted text
Security
The only way to change the configuration of a running ELSMS unit is to physically
go to the unit to initiate a new configuration sequence. If security in the end user
application is important then this should be considered when installing the unit.
Setting up the unit requires that someone is physically with the unit to begin the
setup sequence by pressing the “Status” button for five seconds. The configuration
message itself could be sent from any location so long as the person with the unit
can press the button in coordination with the person sending the configuration SMS.
The unit will accept a configuration message from any mobile device running the
App. Once a setup attempt has finished, the unit will no longer respond to incoming
messages unless a new setup is attempted. The configuration message sent to the
unit from the app is sent partially encrypted although the unit name is readable.
