How to get a key press <ENTER> in M241

Dear all,

I'm doing a project about sms alarm. And I have made a CFC POU like this.

It should work like this, when I sent 'AT' (a string) to sms-module a <ENTER> should be followed then the construction could be received by sms module. So how can I get this <ENTER>?

By the way, PLC is Modicon M241 and sms module is WAVECOM WMOD2.

I'm looking for your help. THANK YOU GUYS!!

Ryan.

Do anyone could help me?...

http://www.asciitable.com/

The <ENTER> key is usually the carriage return ASCII character.
The CR is Decimal 13 (Hex 0D). See the above link to the ASCII chart.

Hope this helps you out.
Regards,

But how can I send Hex0D to sms module. what function block should I use?

I am a rookie to PLC, thank you for helping.

Note: Another way to solve your situation is to use Email to send SMS messages.
Since SoMachine V4.2, there's an email handling library that allows the M241 and the M251 to send emails.
If you can send emails then SMS Text Messages can also be sent. See the following post.
http://accautomation.ca/heres-is-a-quick-way-to-send-email-text-messages-from-the-plc/


Your current hardware WMOD2 will use serial communication.
http://www.cognitivekipple.com/store/WMOD2-UserGuide.pdf

http://www.rakurs.su/wp-content/uploads/2015/01/Rukovodstvo-po-programmirovaniya-Modicon-M241-eng.pdf
In the above programming manual, look at Chapter 14 Serial Line Configuration

Regards,