Take a look at this application example.

Monitoring and Control with the LOGO! CMR Module

The following scenarios are realized:

1. Sending an SMS to a defined recipient depending on the state of the process (here temperature monitoring).
2. Controlling a process by means of SMS (here fan control).
3. Controlling an outlet flap in animal breeding depending on the local sunrise and sunset using time-of-day synchronization.
4. Tracking the position of containers via GPS.