Rockwell Automation Publication 1783-UM001B-EN-P - May 2010 31
Network Services Setup Chapter 2
The maximum length of an email message is 520 characters. An additional 4-byte
string-length value is added to the tag. As a result, the maximum source length is
524 characters.
Send an SMS from the Controller
Text messages are sent in the same way as a normal email message. The only
difference is the recipient in the To: field is a telephone number instead of an
email address.
The email format for sending text messages by using a SMS gateway service is
shown as follows:
• api_id:nnnnnnn$r$l
• user:xxxxx$r$l
• password:ppppp$r$l
• to:cell_phone#$r$l
• text:Simple text$r$l
• text:on all$r$l
• text:3 lines. $r$l
• text:Sms signature - 1234567890123456$r$l
TIP
<CR><LF> characters are coded as $r$l.