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2.4
Function charts
The following charts show the graphical representation of the functional sequences
of the SMS_MD720-3_Library_V13 function block.
Function chart of a send operation
Figure 2-3
INIT
READY
SMS_SEND
BUSY
Function chart of a receive operation
Figure 2-4
INIT
READY
TIMER_POL
POLLING
BUSY
SMS_NDR
Sending and Receiving SMS Messages with MD720-3
Entry ID: 25545680,
V1.0,
approx.
20sec
approx.
20sec
After
initialization of
1 min
the modem, the
timer starts
running
approx.
20sec
12/2013
approx.
approx.
8sec
8sec
Active through user
Reaction block
Reaction block
1 min
Reaction block
The duration
depends on the
number of received
messages
Reaction block
Reaction block
Active through
user
Reaction block
Active through
user
Reaction block
14
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