Problem; Overview Of The Automation Problem; Description Of The Automation Problem - Siemens SIMATIC S7-300 Manual

1

Problem

Introduction
In this application, we will show you how you can implement a simple system for
wireless signaling and switching based on SMS messaging.
1.1

Overview of the automation problem

The figure below provides an overview of the automation problem.
Figure 1-1
Prozess
Fehler,
Warnung,
Meldung
Aktionen
1.2

Description of the automation problem

The aim of this solution is to realize the following scenarios:
An S7-300 CPU is to
send an SMS message to a configurable recipient
send an SMS message with an attached coefficient (e.g., an analog process
value) to a configurable recipient
receive an SMS message from a mobile GSM device, evaluate it and initiate a
control action
receive a remote query of a value via SMS.
As an alternative to the S7-300 CPU, an S7-400 CPU or a CPU of the ET 200S
distributed I/O system can also be used.
Sending and Receiving SMS Messages with MD720-3
V 2.1, ID Number: 25545680
Automatisierungsstation
1.1 Overview of the automation problem
GSM
Mobilfunknetz
1 Problem
Mobiler Service
10.15 PM:
Alarm in
Station X433
7