10.15.1 SMS _IN
Description of Function
They are used in a similar way to other digital input blocks. But they enable the switching of their state via a SMS message sent to the CPU from a phone.
Users can send a pre - set message to the CPU to change the state of the inputs, from “0/OFF” to “1/ON” or vice versa. The ability to define other commands is also provided such as “Switch Pump On”, “Close Drain Valve”, etc.
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