Siemens SIMATIC S7-300 Manual page 21

Message assignment code fragment
The following code lines illustrate how Message_No is assigned to SMS text and
telephone number in SCL.
Figure 3-6
Call of SMS_sr_CPxxx
To send the SMS message, the FB "SMS_Meld" function block calls the FB
"SMS_sr_CPxxx" library block.
The figure below shows the call of the FB "SMS_sr_CPxxx" function block.
Figure 3-7
Sending and Receiving SMS Messages with MD720-3
V 2.1, ID Number: 25545680
3 Functional Mechanisms of this Application
3.2 Scenario: "Generating and sending an SMS message"
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