Seneca S6001-RTU, User Manual

Page: 194 / 210

USER MANUAL – Z-TWS4/Z-PASS2-S/S6001-RTU
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19.1.19 SEND_SMS
The SEND_SMS FB sends an SMS, by means of a GSM modem.
When first called, it runs a process which starts sending the SMS;
on subsequent calls, it only checks if the process has finished its job.
The FB has the following input parameters:
- SERIAL_PORT : this parameter is not used (it is still present only for
compatibility reasons); it can be set to '' (empty string)
- SC_NUM : SMS Service Center (as given by the mobile operator) (it can be
empty, if the SC number is already set on the modem/SIM)
- TO_NUM : recipient number
- SMS_BODY : SMS text
- TIMEOUT : timeout, in seconds
- @ENABLE : TRUE -> FB is executed
FALSE -> FB is skipped
The FB has the following output parameter:
- RESULT : -2, when called with ENABLE=FALSE
-1, in case of any failure
0, if the process is still running
1, if the process has successfully finished
2, if timeout has expired
4, if PPP is active, on Z-MINIRTU
5, if MODEM_RESET FB is running
Please note that the SEND_SMS FB can't be successfully executed while the PPP
connection is active, on Z-MINIRTU.