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How to realize the short message function of mobile phone with plc
There are many so-called "GPRS DTU", the module communicates with PLC through serial port, and PLC controls the data receiving and sending of GPRS DTU, including short messages.
Keywords: GPRS data transmission module
There are also official ones, such as SINAUT MD720-3, a GPRS module matched with Siemens and S7-200.
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